dwindows: android/dw.cpp comparison

comparison android/dw.cpp @ 2473:aa420e366b2b

Android: Initial skeletal commit for Android support, almost nothing implemented... but this should be a framework for adding Android support via JNI/NDK.

author	bsmith@81767d24-ef19-dc11-ae90-00e081727c95
date	Sun, 18 Apr 2021 01:28:55 +0000
parents
children	a13e6db064f4

comparison

equal deleted inserted replaced

-:206a0643add6
+:aa420e366b2b
+/*
+* Dynamic Windows:
+*          A GTK like GUI implementation of the Android GUI.
+*
+* (C) 2011-2021 Brian Smith <brian@dbsoft.org>
+* (C) 2011-2021 Mark Hessling <mark@rexx.org>
+*
+* Compile with $CC -I. -D__ANDROID__ template/dw.c
+*
+*/
+#include <jni.h>
+#include "dw.h"
+#include <stdlib.h>
+#include <string.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+JNIEXPORT jstring JNICALL
+Java_org_dbsoft_dwindows_dwtest_DWindows_stringFromJNI(
+JNIEnv* env,
+jobject /* this */) {
+char hello[] = "Hello from C++";
+return env->NewStringUTF(hello);
+}
+/* Implement these to get and set the Box* pointer on the widget handle */
+void *_dw_window_pointer_get(HWND handle)
+{
+return NULL;
+}
+void _dw_window_pointer_set(HWND handle, Box *box)
+{
+}
+/* This function calculates how much space the widgets and boxes require
+* and does expansion as necessary.
+*/
+static void _dw_resize_box(Box *thisbox, int *depth, int x, int y, int pass)
+{
+/* Current item position */
+int z, currentx = thisbox->pad, currenty = thisbox->pad;
+/* Used x, y and padding maximum values...
+* These will be used to find the widest or
+* tallest items in a box.
+*/
+int uymax = 0, uxmax = 0;
+int upymax = 0, upxmax = 0;
+/* Reset the box sizes */
+thisbox->minwidth = thisbox->minheight = thisbox->usedpadx = thisbox->usedpady = thisbox->pad * 2;
+#if 0
+/* If there are containers which have built-in padding like
+* groupboxes.. calculate the padding size and add it to the layout.
+*/
+if(thisbox->grouphwnd)
+{
+char *text = dw_window_get_text(thisbox->grouphwnd);
+thisbox->grouppady = 0;
+if(text)
+{
+dw_font_text_extents_get(thisbox->grouphwnd, 0, text, NULL, &thisbox->grouppady);
+dw_free(text);
+}
+if(thisbox->grouppady)
+thisbox->grouppady += 3;
+else
+thisbox->grouppady = 6;
+thisbox->grouppadx = 6;
+thisbox->minwidth += thisbox->grouppadx;
+thisbox->usedpadx += thisbox->grouppadx;
+thisbox->minheight += thisbox->grouppady;
+thisbox->usedpady += thisbox->grouppady;
+}
+#endif
+/* Count up all the space for all items in the box */
+for(z=0;z<thisbox->count;z++)
+{
+int itempad, itemwidth, itemheight;
+if(thisbox->items[z].type == TYPEBOX)
+{
+Box *tmp = (Box *)_dw_window_pointer_get(thisbox->items[z].hwnd);
+if(tmp)
+{
+/* On the first pass calculate the box contents */
+if(pass == 1)
+{
+(*depth)++;
+/* Save the newly calculated values on the box */
+_dw_resize_box(tmp, depth, x, y, pass);
+/* Duplicate the values in the item list for use below */
+thisbox->items[z].width = tmp->minwidth;
+thisbox->items[z].height = tmp->minheight;
+(*depth)--;
+}
+}
+}
+/* Precalculate these values, since they will
+* be used used repeatedly in the next section.
+*/
+itempad = thisbox->items[z].pad * 2;
+itemwidth = thisbox->items[z].width + itempad;
+itemheight = thisbox->items[z].height + itempad;
+/* Calculate the totals and maximums */
+if(thisbox->type == DW_VERT)
+{
+if(itemwidth > uxmax)
+uxmax = itemwidth;
+if(thisbox->items[z].hsize != SIZEEXPAND)
+{
+if(itemwidth > upxmax)
+upxmax = itemwidth;
+}
+else
+{
+if(itempad > upxmax)
+upxmax = itempad;
+}
+thisbox->minheight += itemheight;
+if(thisbox->items[z].vsize != SIZEEXPAND)
+thisbox->usedpady += itemheight;
+else
+thisbox->usedpady += itempad;
+}
+else
+{
+if(itemheight > uymax)
+uymax = itemheight;
+if(thisbox->items[z].vsize != SIZEEXPAND)
+{
+if(itemheight > upymax)
+upymax = itemheight;
+}
+else
+{
+if(itempad > upymax)
+upymax = itempad;
+}
+thisbox->minwidth += itemwidth;
+if(thisbox->items[z].hsize != SIZEEXPAND)
+thisbox->usedpadx += itemwidth;
+else
+thisbox->usedpadx += itempad;
+}
+}
+/* Add the maximums which were calculated in the previous loop */
+thisbox->minwidth += uxmax;
+thisbox->minheight += uymax;
+thisbox->usedpadx += upxmax;
+thisbox->usedpady += upymax;
+/* Move the groupbox start past the group border */
+if(thisbox->grouphwnd)
+{
+currentx += 3;
+currenty += thisbox->grouppady - 3;
+}
+/* The second pass is for actual placement. */
+if(pass > 1)
+{
+for(z=0;z<(thisbox->count);z++)
+{
+int height = thisbox->items[z].height;
+int width = thisbox->items[z].width;
+int itempad = thisbox->items[z].pad * 2;
+int thispad = thisbox->pad * 2;
+/* Calculate the new sizes */
+if(thisbox->items[z].hsize == SIZEEXPAND)
+{
+if(thisbox->type == DW_HORZ)
+{
+int expandablex = thisbox->minwidth - thisbox->usedpadx;
+if(expandablex)
+width = (int)(((float)width / (float)expandablex) * (float)(x - thisbox->usedpadx));
+}
+else
+width = x - (itempad + thispad + thisbox->grouppadx);
+}
+if(thisbox->items[z].vsize == SIZEEXPAND)
+{
+if(thisbox->type == DW_VERT)
+{
+int expandabley = thisbox->minheight - thisbox->usedpady;
+if(expandabley)
+height = (int)(((float)height / (float)expandabley) * (float)(y - thisbox->usedpady));
+}
+else
+height = y - (itempad + thispad + thisbox->grouppady);
+}
+/* If the calculated size is valid... */
+if(width > 0 && height > 0)
+{
+int pad = thisbox->items[z].pad;
+#if 0
+HWND handle = thisbox->items[z].hwnd;
+/* Here you put your platform specific placement widget placement code */
+PlaceWidget(handle, currentx + pad, currenty + pad, width, height);
+/* If any special handling needs to be done... like diving into
+* controls that have sub-layouts... like notebooks or splitbars...
+* do that here. Figure out the sub-layout size and call _dw_do_resize().
+*/
+#endif
+/* Advance the current position in the box */
+if(thisbox->type == DW_HORZ)
+currentx += width + (pad * 2);
+if(thisbox->type == DW_VERT)
+currenty += height + (pad * 2);
+}
+}
+}
+}
+/* This is a convenience function used in the window's resize event
+* to relayout the controls in the window.
+*/
+void _dw_do_resize(Box *thisbox, int x, int y)
+{
+if(x != 0 && y != 0)
+{
+if(thisbox)
+{
+int depth = 0;
+/* Calculate space requirements */
+_dw_resize_box(thisbox, &depth, x, y, 1);
+/* Finally place all the boxes and controls */
+_dw_resize_box(thisbox, &depth, x, y, 2);
+}
+}
+}
+/*
+* Runs a message loop for Dynamic Windows.
+*/
+void API dw_main(void)
+{
+}
+/*
+* Causes running dw_main() to return.
+*/
+void API dw_main_quit(void)
+{
+}
+/*
+* Runs a message loop for Dynamic Windows, for a period of milliseconds.
+* Parameters:
+*           milliseconds: Number of milliseconds to run the loop for.
+*/
+void API dw_main_sleep(int milliseconds)
+{
+}
+/*
+* Processes a single message iteration and returns.
+*/
+void API dw_main_iteration(void)
+{
+}
+/*
+* Cleanly terminates a DW session, should be signal handler safe.
+* Parameters:
+*       exitcode: Exit code reported to the operating system.
+*/
+void API dw_exit(int exitcode)
+{
+exit(exitcode);
+}
+/*
+* Free's memory allocated by dynamic windows.
+* Parameters:
+*           ptr: Pointer to dynamic windows allocated
+*                memory to be free()'d.
+*/
+void API dw_free(void *ptr)
+{
+free(ptr);
+}
+/*
+* Returns a pointer to a static buffer which contains the
+* current user directory.  Or the root directory if it could
+* not be determined.
+*/
+char * API dw_user_dir(void)
+{
+static char _dw_user_dir[MAX_PATH+1] = {0};
+if(!_dw_user_dir[0])
+{
+char *home = getenv("HOME");
+if(home)
+strcpy(_dw_user_dir, home);
+else
+strcpy(_dw_user_dir, "/");
+}
+return _dw_user_dir;
+}
+/*
+* Returns a pointer to a static buffer which containes the
+* private application data directory.
+*/
+char * API dw_app_dir(void)
+{
+static char _dw_exec_dir[MAX_PATH+1] = {0};
+/* Code to determine the execution directory here,
+* some implementations make this variable global
+* and determin the location in dw_init().
+*/
+return _dw_exec_dir;
+}
+/*
+* Sets the application ID used by this Dynamic Windows application instance.
+* Parameters:
+*         appid: A string typically in the form: com.company.division.application
+*         appname: The application name used on Windows or NULL.
+* Returns:
+*         DW_ERROR_NONE after successfully setting the application ID.
+*         DW_ERROR_UNKNOWN if unsupported on this system.
+*         DW_ERROR_GENERAL if the application ID is not allowed.
+* Remarks:
+*          This must be called before dw_init().  If dw_init() is called first
+*          it will create a unique ID in the form: org.dbsoft.dwindows.application
+*          or if the application name cannot be detected: org.dbsoft.dwindows.pid.#
+*          The appname is only required on Windows.  If NULL is passed the detected
+*          application name will be used, but a prettier name may be desired.
+*/
+int API dw_app_id_set(const char *appid, const char *appname)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Displays a debug message on the console...
+* Parameters:
+*           format: printf style format string.
+*           ...: Additional variables for use in the format.
+*/
+void API dw_debug(const char *format, ...)
+{
+va_list args;
+char outbuf[1025] = {0};
+va_start(args, format);
+vsnprintf(outbuf, 1024, format, args);
+va_end(args);
+/* Output to stderr, if there is another way to send it
+* on the implementation platform, change this.
+*/
+fprintf(stderr, "%s", outbuf);
+}
+/*
+* Displays a Message Box with given text and title..
+* Parameters:
+*           title: The title of the message box.
+*           flags: flags to indicate buttons and icon
+*           format: printf style format string.
+*           ...: Additional variables for use in the format.
+* Returns:
+*       DW_MB_RETURN_YES, DW_MB_RETURN_NO, DW_MB_RETURN_OK,
+*       or DW_MB_RETURN_CANCEL based on flags and user response.
+*/
+int API dw_messagebox(const char *title, int flags, const char *format, ...)
+{
+return 0;
+}
+/*
+* Opens a file dialog and queries user selection.
+* Parameters:
+*       title: Title bar text for dialog.
+*       defpath: The default path of the open dialog.
+*       ext: Default file extention.
+*       flags: DW_FILE_OPEN or DW_FILE_SAVE.
+* Returns:
+*       NULL on error. A malloced buffer containing
+*       the file path on success.
+*
+*/
+char * API dw_file_browse(const char *title, const char *defpath, const char *ext, int flags)
+{
+return NULL;
+}
+/*
+* Gets the contents of the default clipboard as text.
+* Parameters:
+*       None.
+* Returns:
+*       Pointer to an allocated string of text or NULL if clipboard empty or contents could not
+*       be converted to text.
+*/
+char * API dw_clipboard_get_text()
+{
+return NULL;
+}
+/*
+* Sets the contents of the default clipboard to the supplied text.
+* Parameters:
+*       str: Text to put on the clipboard.
+*       len: Length of the text.
+*/
+void API dw_clipboard_set_text(const char *str, int len)
+{
+}
+/*
+* Allocates and initializes a dialog struct.
+* Parameters:
+*           data: User defined data to be passed to functions.
+* Returns:
+*       A handle to a dialog or NULL on failure.
+*/
+DWDialog * API dw_dialog_new(void *data)
+{
+#if 0
+DWDialog *tmp = malloc(sizeof(DWDialog));
+if(tmp)
+{
+tmp->eve = dw_event_new();
+dw_event_reset(tmp->eve);
+tmp->data = data;
+tmp->done = FALSE;
+tmp->result = NULL;
+}
+return tmp;
+#endif
+return NULL;
+}
+/*
+* Accepts a dialog struct and returns the given data to the
+* initial called of dw_dialog_wait().
+* Parameters:
+*           dialog: Pointer to a dialog struct aquired by dw_dialog_new).
+*           result: Data to be returned by dw_dialog_wait().
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_dialog_dismiss(DWDialog *dialog, void *result)
+{
+#if 0
+dialog->result = result;
+dw_event_post(dialog->eve);
+dialog->done = TRUE;
+#endif
+return DW_ERROR_GENERAL;
+}
+/*
+* Accepts a dialog struct waits for dw_dialog_dismiss() to be
+* called by a signal handler with the given dialog struct.
+* Parameters:
+*           dialog: Pointer to a dialog struct aquired by dw_dialog_new).
+* Returns:
+*       The data passed to dw_dialog_dismiss().
+*/
+void * API dw_dialog_wait(DWDialog *dialog)
+{
+void *tmp = NULL;
+#if 0
+while(!dialog->done)
+{
+dw_main_iteration();
+}
+dw_event_close(&dialog->eve);
+tmp = dialog->result;
+free(dialog);
+#endif
+return tmp;
+}
+/*
+* Create a new Box to be packed.
+* Parameters:
+*       type: Either DW_VERT (vertical) or DW_HORZ (horizontal).
+*       pad: Number of pixels to pad around the box.
+* Returns:
+*       A handle to a box or NULL on failure.
+*/
+HWND API dw_box_new(int type, int pad)
+{
+return 0;
+}
+/*
+* Create a new Group Box to be packed.
+* Parameters:
+*       type: Either DW_VERT (vertical) or DW_HORZ (horizontal).
+*       pad: Number of pixels to pad around the box.
+*       title: Text to be displayined in the group outline.
+* Returns:
+*       A handle to a groupbox window or NULL on failure.
+*/
+HWND API dw_groupbox_new(int type, int pad, const char *title)
+{
+return 0;
+}
+/*
+* Create a new scrollable Box to be packed.
+* Parameters:
+*       type: Either DW_VERT (vertical) or DW_HORZ (horizontal).
+*       pad: Number of pixels to pad around the box.
+* Returns:
+*       A handle to a scrollbox or NULL on failure.
+*/
+HWND API dw_scrollbox_new( int type, int pad )
+{
+return 0;
+}
+/*
+* Returns the position of the scrollbar in the scrollbox.
+* Parameters:
+*          handle: Handle to the scrollbox to be queried.
+*          orient: The vertical or horizontal scrollbar.
+* Returns:
+*       The vertical or horizontal position in the scrollbox.
+*/
+int API dw_scrollbox_get_pos(HWND handle, int orient)
+{
+return 0;
+}
+/*
+* Gets the range for the scrollbar in the scrollbox.
+* Parameters:
+*          handle: Handle to the scrollbox to be queried.
+*          orient: The vertical or horizontal scrollbar.
+* Returns:
+*       The vertical or horizontal range of the scrollbox.
+*/
+int API dw_scrollbox_get_range(HWND handle, int orient)
+{
+return 0;
+}
+/* Internal box packing function called by the other 3 functions */
+void _dw_box_pack(HWND box, HWND item, int index, int width, int height, int hsize, int vsize, int pad, char *funcname)
+{
+Box *thisbox;
+int z, x = 0;
+Item *tmpitem, *thisitem;
+/* Sanity checks */
+if(!box || box == item)
+return;
+thisbox = (Box *)_dw_window_pointer_get(box);
+thisitem = thisbox->items;
+/* Do some sanity bounds checking */
+if(index < 0)
+index = 0;
+if(index > thisbox->count)
+index = thisbox->count;
+/* Duplicate the existing data */
+tmpitem = (Item *)malloc(sizeof(Item)*(thisbox->count+1));
+for(z=0;z<thisbox->count;z++)
+{
+if(z == index)
+x++;
+tmpitem[x] = thisitem[z];
+x++;
+}
+/* Sanity checks */
+if(vsize && !height)
+height = 1;
+if(hsize && !width)
+width = 1;
+/* Fill in the item data appropriately */
+if(0 /* Test to see if "item" is a box */)
+tmpitem[index].type = TYPEBOX;
+else
+tmpitem[index].type = TYPEITEM;
+tmpitem[index].hwnd = item;
+tmpitem[index].origwidth = tmpitem[index].width = width;
+tmpitem[index].origheight = tmpitem[index].height = height;
+tmpitem[index].pad = pad;
+if(hsize)
+tmpitem[index].hsize = SIZEEXPAND;
+else
+tmpitem[index].hsize = SIZESTATIC;
+if(vsize)
+tmpitem[index].vsize = SIZEEXPAND;
+else
+tmpitem[index].vsize = SIZESTATIC;
+thisbox->items = tmpitem;
+/* Update the item count */
+thisbox->count++;
+/* Add the item to the box */
+#if 0
+/* Platform specific code to add item to box */
+BoxAdd(box, item);
+#endif
+/* Free the old data */
+if(thisbox->count)
+free(thisitem);
+}
+/*
+* Remove windows (widgets) from the box they are packed into.
+* Parameters:
+*       handle: Window handle of the packed item to be removed.
+* Returns:
+*       DW_ERROR_NONE on success and DW_ERROR_GENERAL on failure.
+*/
+int API dw_box_unpack(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Remove windows (widgets) from a box at an arbitrary location.
+* Parameters:
+*       box: Window handle of the box to be removed from.
+*       index: 0 based index of packed items.
+* Returns:
+*       Handle to the removed item on success, 0 on failure or padding.
+*/
+HWND API dw_box_unpack_at_index(HWND box, int index)
+{
+return 0;
+}
+/*
+* Pack windows (widgets) into a box at an arbitrary location.
+* Parameters:
+*       box: Window handle of the box to be packed into.
+*       item: Window handle of the item to pack.
+*       index: 0 based index of packed items.
+*       width: Width in pixels of the item or -1 to be self determined.
+*       height: Height in pixels of the item or -1 to be self determined.
+*       hsize: TRUE if the window (widget) should expand horizontally to fill space given.
+*       vsize: TRUE if the window (widget) should expand vertically to fill space given.
+*       pad: Number of pixels of padding around the item.
+*/
+void API dw_box_pack_at_index(HWND box, HWND item, int index, int width, int height, int hsize, int vsize, int pad)
+{
+_dw_box_pack(box, item, index, width, height, hsize, vsize, pad, "dw_box_pack_at_index()");
+}
+/*
+* Pack windows (widgets) into a box from the start (or top).
+* Parameters:
+*       box: Window handle of the box to be packed into.
+*       item: Window handle of the item to pack.
+*       width: Width in pixels of the item or -1 to be self determined.
+*       height: Height in pixels of the item or -1 to be self determined.
+*       hsize: TRUE if the window (widget) should expand horizontally to fill space given.
+*       vsize: TRUE if the window (widget) should expand vertically to fill space given.
+*       pad: Number of pixels of padding around the item.
+*/
+void API dw_box_pack_start(HWND box, HWND item, int width, int height, int hsize, int vsize, int pad)
+{
+/* 65536 is the table limit on GTK...
+* seems like a high enough value we will never hit it here either.
+*/
+_dw_box_pack(box, item, 65536, width, height, hsize, vsize, pad, "dw_box_pack_start()");
+}
+/*
+* Pack windows (widgets) into a box from the end (or bottom).
+* Parameters:
+*       box: Window handle of the box to be packed into.
+*       item: Window handle of the item to pack.
+*       width: Width in pixels of the item or -1 to be self determined.
+*       height: Height in pixels of the item or -1 to be self determined.
+*       hsize: TRUE if the window (widget) should expand horizontally to fill space given.
+*       vsize: TRUE if the window (widget) should expand vertically to fill space given.
+*       pad: Number of pixels of padding around the item.
+*/
+void API dw_box_pack_end(HWND box, HWND item, int width, int height, int hsize, int vsize, int pad)
+{
+_dw_box_pack(box, item, 0, width, height, hsize, vsize, pad, "dw_box_pack_end()");
+}
+/*
+* Create a new button window (widget) to be packed.
+* Parameters:
+*       text: The text to be display by the static text widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a button window or NULL on failure.
+*/
+HWND API dw_button_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Create a new Entryfield window (widget) to be packed.
+* Parameters:
+*       text: The default text to be in the entryfield widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to an entryfield window or NULL on failure.
+*/
+HWND API dw_entryfield_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Create a new Entryfield (password) window (widget) to be packed.
+* Parameters:
+*       text: The default text to be in the entryfield widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to an entryfield password window or NULL on failure.
+*/
+HWND API dw_entryfield_password_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Sets the entryfield character limit.
+* Parameters:
+*          handle: Handle to the spinbutton to be set.
+*          limit: Number of characters the entryfield will take.
+*/
+void API dw_entryfield_set_limit(HWND handle, ULONG limit)
+{
+}
+/*
+* Create a new bitmap button window (widget) to be packed.
+* Parameters:
+*       text: Bubble help text to be displayed.
+*       id: An ID of a bitmap in the resource file.
+* Returns:
+*       A handle to a bitmap button window or NULL on failure.
+*/
+HWND API dw_bitmapbutton_new(const char *text, ULONG resid)
+{
+return 0;
+}
+/*
+* Create a new bitmap button window (widget) to be packed from a file.
+* Parameters:
+*       text: Bubble help text to be displayed.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+*       filename: Name of the file, omit extention to have
+*                 DW pick the appropriate file extension.
+*                 (BMP on OS/2 or Windows, XPM on Unix)
+* Returns:
+*       A handle to a bitmap button window or NULL on failure.
+*/
+HWND API dw_bitmapbutton_new_from_file(const char *text, unsigned long cid, const char *filename)
+{
+return 0;
+}
+/*
+* Create a new bitmap button window (widget) to be packed from data.
+* Parameters:
+*       text: Bubble help text to be displayed.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+*       data: The contents of the image
+*            (BMP or ICO on OS/2 or Windows, XPM on Unix)
+*       len: length of str
+* Returns:
+*       A handle to a bitmap button window or NULL on failure.
+*/
+HWND API dw_bitmapbutton_new_from_data(const char *text, unsigned long cid, const char *data, int len)
+{
+return 0;
+}
+/*
+* Create a new spinbutton window (widget) to be packed.
+* Parameters:
+*       text: The text to be display by the static text widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a spinbutton window or NULL on failure.
+*/
+HWND API dw_spinbutton_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Sets the spinbutton value.
+* Parameters:
+*          handle: Handle to the spinbutton to be set.
+*          position: Current value of the spinbutton.
+*/
+void API dw_spinbutton_set_pos(HWND handle, long position)
+{
+}
+/*
+* Sets the spinbutton limits.
+* Parameters:
+*          handle: Handle to the spinbutton to be set.
+*          upper: Upper limit.
+*          lower: Lower limit.
+*/
+void API dw_spinbutton_set_limits(HWND handle, long upper, long lower)
+{
+}
+/*
+* Returns the current value of the spinbutton.
+* Parameters:
+*          handle: Handle to the spinbutton to be queried.
+* Returns:
+*       Number value displayed in the spinbutton.
+*/
+long API dw_spinbutton_get_pos(HWND handle)
+{
+return 0;
+}
+/*
+* Create a new radiobutton window (widget) to be packed.
+* Parameters:
+*       text: The text to be display by the static text widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a radio button window or NULL on failure.
+*/
+HWND API dw_radiobutton_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Create a new slider window (widget) to be packed.
+* Parameters:
+*       vertical: TRUE or FALSE if slider is vertical.
+*       increments: Number of increments available.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a slider window or NULL on failure.
+*/
+HWND API dw_slider_new(int vertical, int increments, ULONG cid)
+{
+return 0;
+}
+/*
+* Returns the position of the slider.
+* Parameters:
+*          handle: Handle to the slider to be queried.
+* Returns:
+*       Position of the slider in the set range.
+*/
+unsigned int API dw_slider_get_pos(HWND handle)
+{
+return 0;
+}
+/*
+* Sets the slider position.
+* Parameters:
+*          handle: Handle to the slider to be set.
+*          position: Position of the slider withing the range.
+*/
+void API dw_slider_set_pos(HWND handle, unsigned int position)
+{
+}
+/*
+* Create a new scrollbar window (widget) to be packed.
+* Parameters:
+*       vertical: TRUE or FALSE if scrollbar is vertical.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a scrollbar window or NULL on failure.
+*/
+HWND API dw_scrollbar_new(int vertical, ULONG cid)
+{
+return 0;
+}
+/*
+* Returns the position of the scrollbar.
+* Parameters:
+*          handle: Handle to the scrollbar to be queried.
+* Returns:
+*       Position of the scrollbar in the set range.
+*/
+unsigned int API dw_scrollbar_get_pos(HWND handle)
+{
+return 0;
+}
+/*
+* Sets the scrollbar position.
+* Parameters:
+*          handle: Handle to the scrollbar to be set.
+*          position: Position of the scrollbar withing the range.
+*/
+void API dw_scrollbar_set_pos(HWND handle, unsigned int position)
+{
+}
+/*
+* Sets the scrollbar range.
+* Parameters:
+*          handle: Handle to the scrollbar to be set.
+*          range: Maximum range value.
+*          visible: Visible area relative to the range.
+*/
+void API dw_scrollbar_set_range(HWND handle, unsigned int range, unsigned int visible)
+{
+}
+/*
+* Create a new percent bar window (widget) to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a percent bar window or NULL on failure.
+*/
+HWND API dw_percent_new(ULONG cid)
+{
+return 0;
+}
+/*
+* Sets the percent bar position.
+* Parameters:
+*          handle: Handle to the percent bar to be set.
+*          position: Position of the percent bar withing the range.
+*/
+void API dw_percent_set_pos(HWND handle, unsigned int position)
+{
+}
+/*
+* Create a new checkbox window (widget) to be packed.
+* Parameters:
+*       text: The text to be display by the static text widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a checkbox window or NULL on failure.
+*/
+HWND API dw_checkbox_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Returns the state of the checkbox.
+* Parameters:
+*          handle: Handle to the checkbox to be queried.
+* Returns:
+*       State of checkbox (TRUE or FALSE).
+*/
+int API dw_checkbox_get(HWND handle)
+{
+return FALSE;
+}
+/*
+* Sets the state of the checkbox.
+* Parameters:
+*          handle: Handle to the checkbox to be queried.
+*          value: TRUE for checked, FALSE for unchecked.
+*/
+void API dw_checkbox_set(HWND handle, int value)
+{
+}
+/*
+* Create a new listbox window (widget) to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id() or 0L.
+*       multi: Multiple select TRUE or FALSE.
+* Returns:
+*       A handle to a listbox window or NULL on failure.
+*/
+HWND API dw_listbox_new(ULONG cid, int multi)
+{
+return 0;
+}
+/*
+* Appends the specified text to the listbox's (or combobox) entry list.
+* Parameters:
+*          handle: Handle to the listbox to be appended to.
+*          text: Text to append into listbox.
+*/
+void API dw_listbox_append(HWND handle, const char *text)
+{
+}
+/*
+* Inserts the specified text into the listbox's (or combobox) entry list.
+* Parameters:
+*          handle: Handle to the listbox to be inserted into.
+*          text: Text to insert into listbox.
+*          pos: 0-based position to insert text
+*/
+void API dw_listbox_insert(HWND handle, const char *text, int pos)
+{
+}
+/*
+* Appends the specified text items to the listbox's (or combobox) entry list.
+* Parameters:
+*          handle: Handle to the listbox to be appended to.
+*          text: Text strings to append into listbox.
+*          count: Number of text strings to append
+*/
+void API dw_listbox_list_append(HWND handle, char **text, int count)
+{
+}
+/*
+* Clears the listbox's (or combobox) list of all entries.
+* Parameters:
+*          handle: Handle to the listbox to be cleared.
+*/
+void API dw_listbox_clear(HWND handle)
+{
+}
+/*
+* Returns the listbox's item count.
+* Parameters:
+*          handle: Handle to the listbox to be counted.
+* Returns:
+*       The number of items in the listbox.
+*/
+int API dw_listbox_count(HWND handle)
+{
+return 0;
+}
+/*
+* Sets the topmost item in the viewport.
+* Parameters:
+*          handle: Handle to the listbox to be cleared.
+*          top: Index to the top item.
+*/
+void API dw_listbox_set_top(HWND handle, int top)
+{
+}
+/*
+* Copies the given index item's text into buffer.
+* Parameters:
+*          handle: Handle to the listbox to be queried.
+*          index: Index into the list to be queried.
+*          buffer: Buffer where text will be copied.
+*          length: Length of the buffer (including NULL).
+*/
+void API dw_listbox_get_text(HWND handle, unsigned int index, char *buffer, unsigned int length)
+{
+}
+/*
+* Sets the text of a given listbox entry.
+* Parameters:
+*          handle: Handle to the listbox to be queried.
+*          index: Index into the list to be queried.
+*          buffer: Buffer where text will be copied.
+*/
+void API dw_listbox_set_text(HWND handle, unsigned int index, const char *buffer)
+{
+}
+/*
+* Returns the index to the item in the list currently selected.
+* Parameters:
+*          handle: Handle to the listbox to be queried.
+* Returns:
+*       The selected item index or DW_ERROR_UNKNOWN (-1) on error.
+*/
+int API dw_listbox_selected(HWND handle)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Returns the index to the current selected item or -1 when done.
+* Parameters:
+*          handle: Handle to the listbox to be queried.
+*          where: Either the previous return or -1 to restart.
+* Returns:
+*       The next selected item or DW_ERROR_UNKNOWN (-1) on error.
+*/
+int API dw_listbox_selected_multi(HWND handle, int where)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Sets the selection state of a given index.
+* Parameters:
+*          handle: Handle to the listbox to be set.
+*          index: Item index.
+*          state: TRUE if selected FALSE if unselected.
+*/
+void API dw_listbox_select(HWND handle, int index, int state)
+{
+}
+/*
+* Deletes the item with given index from the list.
+* Parameters:
+*          handle: Handle to the listbox to be set.
+*          index: Item index.
+*/
+void API dw_listbox_delete(HWND handle, int index)
+{
+}
+/*
+* Create a new Combobox window (widget) to be packed.
+* Parameters:
+*       text: The default text to be in the combpbox widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a combobox window or NULL on failure.
+*/
+HWND API dw_combobox_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Create a new Multiline Editbox window (widget) to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a MLE window or NULL on failure.
+*/
+HWND API dw_mle_new(ULONG cid)
+{
+return 0;
+}
+/*
+* Adds text to an MLE box and returns the current point.
+* Parameters:
+*          handle: Handle to the MLE to be queried.
+*          buffer: Text buffer to be imported.
+*          startpoint: Point to start entering text.
+* Returns:
+*       Current position in the buffer.
+*/
+unsigned int API dw_mle_import(HWND handle, const char *buffer, int startpoint)
+{
+return 0;
+}
+/*
+* Grabs text from an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be queried.
+*          buffer: Text buffer to be exported.
+*          startpoint: Point to start grabbing text.
+*          length: Amount of text to be grabbed.
+*/
+void API dw_mle_export(HWND handle, char *buffer, int startpoint, int length)
+{
+}
+/*
+* Obtains information about an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be queried.
+*          bytes: A pointer to a variable to return the total bytes.
+*          lines: A pointer to a variable to return the number of lines.
+*/
+void API dw_mle_get_size(HWND handle, unsigned long *bytes, unsigned long *lines)
+{
+if(bytes)
+*bytes = 0;
+if(lines)
+*lines = 0;
+}
+/*
+* Deletes text from an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be deleted from.
+*          startpoint: Point to start deleting text.
+*          length: Amount of text to be deleted.
+*/
+void API dw_mle_delete(HWND handle, int startpoint, int length)
+{
+}
+/*
+* Clears all text from an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be cleared.
+*/
+void API dw_mle_clear(HWND handle)
+{
+}
+/*
+* Sets the visible line of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be positioned.
+*          line: Line to be visible.
+*/
+void API dw_mle_set_visible(HWND handle, int line)
+{
+}
+/*
+* Sets the editablity of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE.
+*          state: TRUE if it can be edited, FALSE for readonly.
+*/
+void API dw_mle_set_editable(HWND handle, int state)
+{
+}
+/*
+* Sets the word wrap state of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE.
+*          state: TRUE if it wraps, FALSE if it doesn't.
+*/
+void API dw_mle_set_word_wrap(HWND handle, int state)
+{
+}
+/*
+* Sets the current cursor position of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be positioned.
+*          point: Point to position cursor.
+*/
+void API dw_mle_set_cursor(HWND handle, int point)
+{
+}
+/*
+* Sets the word auto complete state of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE.
+*          state: Bitwise combination of DW_MLE_COMPLETE_TEXT/DASH/QUOTE
+*/
+void API dw_mle_set_auto_complete(HWND handle, int state)
+{
+}
+/*
+* Finds text in an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to be cleared.
+*          text: Text to search for.
+*          point: Start point of search.
+*          flags: Search specific flags.
+* Returns:
+*       Position in buffer or DW_ERROR_UNKNOWN (-1) on error.
+*/
+int API dw_mle_search(HWND handle, const char *text, int point, unsigned long flags)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Stops redrawing of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to freeze.
+*/
+void API dw_mle_freeze(HWND handle)
+{
+}
+/*
+* Resumes redrawing of an MLE box.
+* Parameters:
+*          handle: Handle to the MLE to thaw.
+*/
+void API dw_mle_thaw(HWND handle)
+{
+}
+/*
+* Create a new status text window (widget) to be packed.
+* Parameters:
+*       text: The text to be display by the static text widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a status text window or NULL on failure.
+*/
+HWND API dw_status_text_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Create a new static text window (widget) to be packed.
+* Parameters:
+*       text: The text to be display by the static text widget.
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       A handle to a text window or NULL on failure.
+*/
+HWND API dw_text_new(const char *text, ULONG cid)
+{
+return 0;
+}
+/*
+* Creates a rendering context widget (window) to be packed.
+* Parameters:
+*       id: An id to be used with dw_window_from_id.
+* Returns:
+*       A handle to the widget or NULL on failure.
+*/
+HWND API dw_render_new(unsigned long cid)
+{
+return 0;
+}
+/*
+* Invalidate the render widget triggering an expose event.
+* Parameters:
+*       handle: A handle to a render widget to be redrawn.
+*/
+void API dw_render_redraw(HWND handle)
+{
+}
+/* Sets the current foreground drawing color.
+* Parameters:
+*       red: red value.
+*       green: green value.
+*       blue: blue value.
+*/
+void API dw_color_foreground_set(unsigned long value)
+{
+}
+/* Sets the current background drawing color.
+* Parameters:
+*       red: red value.
+*       green: green value.
+*       blue: blue value.
+*/
+void API dw_color_background_set(unsigned long value)
+{
+}
+/* Allows the user to choose a color using the system's color chooser dialog.
+* Parameters:
+*       value: current color
+* Returns:
+*       The selected color or the current color if cancelled.
+*/
+unsigned long API dw_color_choose(unsigned long value)
+{
+return value;
+}
+/* Draw a point on a window (preferably a render window).
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       x: X coordinate.
+*       y: Y coordinate.
+*/
+void API dw_draw_point(HWND handle, HPIXMAP pixmap, int x, int y)
+{
+}
+/* Draw a line on a window (preferably a render window).
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       x1: First X coordinate.
+*       y1: First Y coordinate.
+*       x2: Second X coordinate.
+*       y2: Second Y coordinate.
+*/
+void API dw_draw_line(HWND handle, HPIXMAP pixmap, int x1, int y1, int x2, int y2)
+{
+}
+/* Draw text on a window (preferably a render window).
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       x: X coordinate.
+*       y: Y coordinate.
+*       text: Text to be displayed.
+*/
+void API dw_draw_text(HWND handle, HPIXMAP pixmap, int x, int y, const char *text)
+{
+}
+/* Query the width and height of a text string.
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       text: Text to be queried.
+*       width: Pointer to a variable to be filled in with the width.
+*       height: Pointer to a variable to be filled in with the height.
+*/
+void API dw_font_text_extents_get(HWND handle, HPIXMAP pixmap, const char *text, int *width, int *height)
+{
+}
+/* Draw a polygon on a window (preferably a render window).
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       flags: DW_DRAW_FILL (1) to fill the polygon or DW_DRAW_DEFAULT (0).
+*       npoints: Number of points passed in.
+*       x: Pointer to array of X coordinates.
+*       y: Pointer to array of Y coordinates.
+*/
+void API dw_draw_polygon( HWND handle, HPIXMAP pixmap, int flags, int npoints, int *x, int *y )
+{
+}
+/* Draw a rectangle on a window (preferably a render window).
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       flags: DW_DRAW_FILL (1) to fill the box or DW_DRAW_DEFAULT (0).
+*       x: X coordinate.
+*       y: Y coordinate.
+*       width: Width of rectangle.
+*       height: Height of rectangle.
+*/
+void API dw_draw_rect(HWND handle, HPIXMAP pixmap, int flags, int x, int y, int width, int height)
+{
+}
+/* Draw an arc on a window (preferably a render window).
+* Parameters:
+*       handle: Handle to the window.
+*       pixmap: Handle to the pixmap. (choose only one of these)
+*       flags: DW_DRAW_FILL (1) to fill the arc or DW_DRAW_DEFAULT (0).
+*              DW_DRAW_FULL will draw a complete circle/elipse.
+*       xorigin: X coordinate of center of arc.
+*       yorigin: Y coordinate of center of arc.
+*       x1: X coordinate of first segment of arc.
+*       y1: Y coordinate of first segment of arc.
+*       x2: X coordinate of second segment of arc.
+*       y2: Y coordinate of second segment of arc.
+*/
+void API dw_draw_arc(HWND handle, HPIXMAP pixmap, int flags, int xorigin, int yorigin, int x1, int y1, int x2, int y2)
+{
+}
+/*
+* Create a tree object to be packed.
+* Parameters:
+*       id: An ID to be used for getting the resource from the
+*           resource file.
+* Returns:
+*       A handle to a tree window or NULL on failure.
+*/
+HWND API dw_tree_new(ULONG cid)
+{
+return 0;
+}
+/*
+* Inserts an item into a tree window (widget) after another item.
+* Parameters:
+*          handle: Handle to the tree to be inserted.
+*          item: Handle to the item to be positioned after.
+*          title: The text title of the entry.
+*          icon: Handle to coresponding icon.
+*          parent: Parent handle or 0 if root.
+*          itemdata: Item specific data.
+* Returns:
+*       A handle to a tree item or NULL on failure.
+*/
+HTREEITEM API dw_tree_insert_after(HWND handle, HTREEITEM item, const char *title, HICN icon, HTREEITEM parent, void *itemdata)
+{
+return 0;
+}
+/*
+* Inserts an item into a tree window (widget).
+* Parameters:
+*          handle: Handle to the tree to be inserted.
+*          title: The text title of the entry.
+*          icon: Handle to coresponding icon.
+*          parent: Parent handle or 0 if root.
+*          itemdata: Item specific data.
+* Returns:
+*       A handle to a tree item or NULL on failure.
+*/
+HTREEITEM API dw_tree_insert(HWND handle, const char *title, HICN icon, HTREEITEM parent, void *itemdata)
+{
+return 0;
+}
+/*
+* Gets the text an item in a tree window (widget).
+* Parameters:
+*          handle: Handle to the tree containing the item.
+*          item: Handle of the item to be modified.
+* Returns:
+*       A malloc()ed buffer of item text to be dw_free()ed or NULL on error.
+*/
+char * API dw_tree_get_title(HWND handle, HTREEITEM item)
+{
+return NULL;
+}
+/*
+* Gets the text an item in a tree window (widget).
+* Parameters:
+*          handle: Handle to the tree containing the item.
+*          item: Handle of the item to be modified.
+* Returns:
+*       A handle to a tree item or NULL on failure.
+*/
+HTREEITEM API dw_tree_get_parent(HWND handle, HTREEITEM item)
+{
+return 0;
+}
+/*
+* Sets the text and icon of an item in a tree window (widget).
+* Parameters:
+*          handle: Handle to the tree containing the item.
+*          item: Handle of the item to be modified.
+*          title: The text title of the entry.
+*          icon: Handle to coresponding icon.
+*/
+void API dw_tree_item_change(HWND handle, HTREEITEM item, const char *title, HICN icon)
+{
+}
+/*
+* Sets the item data of a tree item.
+* Parameters:
+*          handle: Handle to the tree containing the item.
+*          item: Handle of the item to be modified.
+*          itemdata: User defined data to be associated with item.
+*/
+void API dw_tree_item_set_data(HWND handle, HTREEITEM item, void *itemdata)
+{
+}
+/*
+* Gets the item data of a tree item.
+* Parameters:
+*          handle: Handle to the tree containing the item.
+*          item: Handle of the item to be modified.
+* Returns:
+*       A pointer to tree item data or NULL on failure.
+*/
+void * API dw_tree_item_get_data(HWND handle, HTREEITEM item)
+{
+return NULL;
+}
+/*
+* Sets this item as the active selection.
+* Parameters:
+*       handle: Handle to the tree window (widget) to be selected.
+*       item: Handle to the item to be selected.
+*/
+void API dw_tree_item_select(HWND handle, HTREEITEM item)
+{
+}
+/*
+* Removes all nodes from a tree.
+* Parameters:
+*       handle: Handle to the window (widget) to be cleared.
+*/
+void API dw_tree_clear(HWND handle)
+{
+}
+/*
+* Expands a node on a tree.
+* Parameters:
+*       handle: Handle to the tree window (widget).
+*       item: Handle to node to be expanded.
+*/
+void API dw_tree_item_expand(HWND handle, HTREEITEM item)
+{
+}
+/*
+* Collapses a node on a tree.
+* Parameters:
+*       handle: Handle to the tree window (widget).
+*       item: Handle to node to be collapsed.
+*/
+void API dw_tree_item_collapse(HWND handle, HTREEITEM item)
+{
+}
+/*
+* Removes a node from a tree.
+* Parameters:
+*       handle: Handle to the window (widget) to be cleared.
+*       item: Handle to node to be deleted.
+*/
+void API dw_tree_item_delete(HWND handle, HTREEITEM item)
+{
+}
+/*
+* Create a container object to be packed.
+* Parameters:
+*       id: An ID to be used for getting the resource from the
+*           resource file.
+* Returns:
+*       A handle to a container window or NULL on failure.
+*/
+HWND API dw_container_new(ULONG cid, int multi)
+{
+return 0;
+}
+/*
+* Sets up the container columns.
+* Parameters:
+*          handle: Handle to the container to be configured.
+*          flags: An array of unsigned longs with column flags.
+*          titles: An array of strings with column text titles.
+*          count: The number of columns (this should match the arrays).
+*          separator: The column number that contains the main separator.
+*                     (this item may only be used in OS/2)
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_container_setup(HWND handle, unsigned long *flags, char **titles, int count, int separator)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Configures the main filesystem column title for localization.
+* Parameters:
+*          handle: Handle to the container to be configured.
+*          title: The title to be displayed in the main column.
+*/
+void API dw_filesystem_set_column_title(HWND handle, const char *title)
+{
+}
+/*
+* Sets up the filesystem columns, note: filesystem always has an icon/filename field.
+* Parameters:
+*          handle: Handle to the container to be configured.
+*          flags: An array of unsigned longs with column flags.
+*          titles: An array of strings with column text titles.
+*          count: The number of columns (this should match the arrays).
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_filesystem_setup(HWND handle, unsigned long *flags, char **titles, int count)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Allocates memory used to populate a container.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          rowcount: The number of items to be populated.
+* Returns:
+*       Handle to container items allocated or NULL on error.
+*/
+void * API dw_container_alloc(HWND handle, int rowcount)
+{
+return NULL;
+}
+/*
+* Sets an item in specified row and column to the given data.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          column: Zero based column of data being set.
+*          row: Zero based row of data being set.
+*          data: Pointer to the data to be added.
+*/
+void API dw_container_set_item(HWND handle, void *pointer, int column, int row, void *data)
+{
+}
+/*
+* Changes an existing item in specified row and column to the given data.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          column: Zero based column of data being set.
+*          row: Zero based row of data being set.
+*          data: Pointer to the data to be added.
+*/
+void API dw_container_change_item(HWND handle, int column, int row, void *data)
+{
+}
+/*
+* Changes an existing item in specified row and column to the given data.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          column: Zero based column of data being set.
+*          row: Zero based row of data being set.
+*          data: Pointer to the data to be added.
+*/
+void API dw_filesystem_change_item(HWND handle, int column, int row, void *data)
+{
+}
+/*
+* Changes an item in specified row and column to the given data.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          column: Zero based column of data being set.
+*          row: Zero based row of data being set.
+*          data: Pointer to the data to be added.
+*/
+void API dw_filesystem_change_file(HWND handle, int row, const char *filename, HICN icon)
+{
+}
+/*
+* Sets an item in specified row and column to the given data.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          column: Zero based column of data being set.
+*          row: Zero based row of data being set.
+*          data: Pointer to the data to be added.
+*/
+void API dw_filesystem_set_file(HWND handle, void *pointer, int row, const char *filename, HICN icon)
+{
+}
+/*
+* Sets an item in specified row and column to the given data.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          column: Zero based column of data being set.
+*          row: Zero based row of data being set.
+*          data: Pointer to the data to be added.
+*/
+void API dw_filesystem_set_item(HWND handle, void *pointer, int column, int row, void *data)
+{
+}
+/*
+* Sets the data of a row in the container.
+* Parameters:
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          row: Zero based row of data being set.
+*          data: Data pointer.
+*/
+void API dw_container_set_row_data(void *pointer, int row, void *data)
+{
+}
+/*
+* Changes the data of a row already inserted in the container.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          row: Zero based row of data being set.
+*          data: Data pointer.
+*/
+void API dw_container_change_row_data(HWND handle, int row, void *data)
+{
+}
+/*
+* Gets column type for a container column.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          column: Zero based column.
+* Returns:
+*       Constant identifying the the column type.
+*/
+int API dw_container_get_column_type(HWND handle, int column)
+{
+return 0;
+}
+/*
+* Gets column type for a filesystem container column.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          column: Zero based column.
+* Returns:
+*       Constant identifying the the column type.
+*/
+int API dw_filesystem_get_column_type(HWND handle, int column)
+{
+return 0;
+}
+/*
+* Sets the alternating row colors for container window (widget) handle.
+* Parameters:
+*          handle: The window (widget) handle.
+*          oddcolor: Odd row background color in DW_RGB format or a default color index.
+*          evencolor: Even row background color in DW_RGB format or a default color index.
+*                    DW_RGB_TRANSPARENT will disable coloring rows.
+*                    DW_CLR_DEFAULT will use the system default alternating row colors.
+*/
+void API dw_container_set_stripe(HWND handle, unsigned long oddcolor, unsigned long evencolor)
+{
+}
+/*
+* Sets the width of a column in the container.
+* Parameters:
+*          handle: Handle to window (widget) of container.
+*          column: Zero based column of width being set.
+*          width: Width of column in pixels.
+*/
+void API dw_container_set_column_width(HWND handle, int column, int width)
+{
+}
+/*
+* Sets the title of a row in the container.
+* Parameters:
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          row: Zero based row of data being set.
+*          title: String title of the item.
+*/
+void API dw_container_set_row_title(void *pointer, int row, const char *title)
+{
+}
+/*
+* Sets the title of a row in the container.
+* Parameters:
+*          handle: Handle to window (widget) of container.
+*          row: Zero based row of data being set.
+*          title: String title of the item.
+*/
+void API dw_container_change_row_title(HWND handle, int row, const char *title)
+{
+}
+/*
+* Sets the title of a row in the container.
+* Parameters:
+*          handle: Handle to the container window (widget).
+*          pointer: Pointer to the allocated memory in dw_container_alloc().
+*          rowcount: The number of rows to be inserted.
+*/
+void API dw_container_insert(HWND handle, void *pointer, int rowcount)
+{
+}
+/*
+* Removes all rows from a container.
+* Parameters:
+*       handle: Handle to the window (widget) to be cleared.
+*       redraw: TRUE to cause the container to redraw immediately.
+*/
+void API dw_container_clear(HWND handle, int redraw)
+{
+}
+/*
+* Removes the first x rows from a container.
+* Parameters:
+*       handle: Handle to the window (widget) to be deleted from.
+*       rowcount: The number of rows to be deleted.
+*/
+void API dw_container_delete(HWND handle, int rowcount)
+{
+}
+/*
+* Scrolls container up or down.
+* Parameters:
+*       handle: Handle to the window (widget) to be scrolled.
+*       direction: DW_SCROLL_UP, DW_SCROLL_DOWN, DW_SCROLL_TOP or
+*                  DW_SCROLL_BOTTOM. (rows is ignored for last two)
+*       rows: The number of rows to be scrolled.
+*/
+void API dw_container_scroll(HWND handle, int direction, long rows)
+{
+}
+/*
+* Starts a new query of a container.
+* Parameters:
+*       handle: Handle to the window (widget) to be queried.
+*       flags: If this parameter is DW_CRA_SELECTED it will only
+*              return items that are currently selected.  Otherwise
+*              it will return all records in the container.
+* Returns:
+*       Pointer to data associated with first entry or NULL on error.
+*/
+char * API dw_container_query_start(HWND handle, unsigned long flags)
+{
+return NULL;
+}
+/*
+* Continues an existing query of a container.
+* Parameters:
+*       handle: Handle to the window (widget) to be queried.
+*       flags: If this parameter is DW_CRA_SELECTED it will only
+*              return items that are currently selected.  Otherwise
+*              it will return all records in the container.
+* Returns:
+*       Pointer to data associated with next entry or NULL on error or completion.
+*/
+char * API dw_container_query_next(HWND handle, unsigned long flags)
+{
+return NULL;
+}
+/*
+* Cursors the item with the text speficied, and scrolls to that item.
+* Parameters:
+*       handle: Handle to the window (widget) to be queried.
+*       text:  Text usually returned by dw_container_query().
+*/
+void API dw_container_cursor(HWND handle, const char *text)
+{
+}
+/*
+* Cursors the item with the data speficied, and scrolls to that item.
+* Parameters:
+*       handle: Handle to the window (widget) to be queried.
+*       data:  Data usually returned by dw_container_query().
+*/
+void API dw_container_cursor_by_data(HWND handle, void *data)
+{
+}
+/*
+* Deletes the item with the text speficied.
+* Parameters:
+*       handle: Handle to the window (widget).
+*       text:  Text usually returned by dw_container_query().
+*/
+void API dw_container_delete_row(HWND handle, const char *text)
+{
+}
+/*
+* Deletes the item with the data speficied.
+* Parameters:
+*       handle: Handle to the window (widget).
+*       data:  Data usually returned by dw_container_query().
+*/
+void API dw_container_delete_row_by_data(HWND handle, void *data)
+{
+}
+/*
+* Optimizes the column widths so that all data is visible.
+* Parameters:
+*       handle: Handle to the window (widget) to be optimized.
+*/
+void API dw_container_optimize(HWND handle)
+{
+}
+/*
+* Inserts an icon into the taskbar.
+* Parameters:
+*       handle: Window handle that will handle taskbar icon messages.
+*       icon: Icon handle to display in the taskbar.
+*       bubbletext: Text to show when the mouse is above the icon.
+*/
+void API dw_taskbar_insert(HWND handle, HICN icon, const char *bubbletext)
+{
+}
+/*
+* Deletes an icon from the taskbar.
+* Parameters:
+*       handle: Window handle that was used with dw_taskbar_insert().
+*       icon: Icon handle that was used with dw_taskbar_insert().
+*/
+void API dw_taskbar_delete(HWND handle, HICN icon)
+{
+}
+/*
+* Obtains an icon from a module (or header in GTK).
+* Parameters:
+*          module: Handle to module (DLL) in OS/2 and Windows.
+*          id: A unsigned long id int the resources on OS/2 and
+*              Windows, on GTK this is converted to a pointer
+*              to an embedded XPM.
+* Returns:
+*       Handle to the created icon or NULL on error.
+*/
+HICN API dw_icon_load(unsigned long module, unsigned long resid)
+{
+return 0;
+}
+/*
+* Obtains an icon from a file.
+* Parameters:
+*       filename: Name of the file, omit extention to have
+*                 DW pick the appropriate file extension.
+*                 (ICO on OS/2 or Windows, XPM on Unix)
+* Returns:
+*       Handle to the created icon or NULL on error.
+*/
+HICN API dw_icon_load_from_file(const char *filename)
+{
+return 0;
+}
+/*
+* Obtains an icon from data.
+* Parameters:
+*       data: Data for the icon (ICO on OS/2 or Windows, XPM on Unix, PNG on Mac)
+*       len: Length of the passed in data.
+* Returns:
+*       Handle to the created icon or NULL on error.
+*/
+HICN API dw_icon_load_from_data(const char *data, int len)
+{
+return 0;
+}
+/*
+* Frees a loaded icon resource.
+* Parameters:
+*          handle: Handle to icon returned by dw_icon_load().
+*/
+void API dw_icon_free(HICN handle)
+{
+}
+/*
+* Create a new MDI Frame to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id or 0L.
+* Returns:
+*       Handle to the created MDI widget or NULL on error.
+*/
+HWND API dw_mdi_new(unsigned long cid)
+{
+return 0;
+}
+/*
+* Creates a splitbar window (widget) with given parameters.
+* Parameters:
+*       type: Value can be DW_VERT or DW_HORZ.
+*       topleft: Handle to the window to be top or left.
+*       bottomright:  Handle to the window to be bottom or right.
+* Returns:
+*       A handle to a splitbar window or NULL on failure.
+*/
+HWND API dw_splitbar_new(int type, HWND topleft, HWND bottomright, unsigned long cid)
+{
+return 0;
+}
+/*
+* Sets the position of a splitbar (pecentage).
+* Parameters:
+*       handle: The handle to the splitbar returned by dw_splitbar_new().
+*       percent: The position of the splitbar.
+*/
+void API dw_splitbar_set(HWND handle, float percent)
+{
+}
+/*
+* Gets the position of a splitbar (pecentage).
+* Parameters:
+*       handle: The handle to the splitbar returned by dw_splitbar_new().
+* Returns:
+*       Position of the splitbar (percentage).
+*/
+float API dw_splitbar_get(HWND handle)
+{
+return 0;
+}
+/*
+* Create a bitmap object to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       Handle to the created bitmap widget or NULL on error.
+*/
+HWND API dw_bitmap_new(ULONG cid)
+{
+return 0;
+}
+/*
+* Creates a pixmap with given parameters.
+* Parameters:
+*       handle: Window handle the pixmap is associated with.
+*       width: Width of the pixmap in pixels.
+*       height: Height of the pixmap in pixels.
+*       depth: Color depth of the pixmap.
+* Returns:
+*       A handle to a pixmap or NULL on failure.
+*/
+HPIXMAP API dw_pixmap_new(HWND handle, unsigned long width, unsigned long height, int depth)
+{
+return 0;
+}
+/*
+* Creates a pixmap from a file.
+* Parameters:
+*       handle: Window handle the pixmap is associated with.
+*       filename: Name of the file, omit extention to have
+*                 DW pick the appropriate file extension.
+*                 (BMP on OS/2 or Windows, XPM on Unix)
+* Returns:
+*       A handle to a pixmap or NULL on failure.
+*/
+HPIXMAP API dw_pixmap_new_from_file(HWND handle, const char *filename)
+{
+return 0;
+}
+/*
+* Creates a pixmap from data in memory.
+* Parameters:
+*       handle: Window handle the pixmap is associated with.
+*       data: Source of the image data
+*                 (BMP on OS/2 or Windows, XPM on Unix)
+*       len: Length of data
+* Returns:
+*       A handle to a pixmap or NULL on failure.
+*/
+HPIXMAP API dw_pixmap_new_from_data(HWND handle, const char *data, int len)
+{
+return 0;
+}
+/*
+* Sets the transparent color for a pixmap.
+* Parameters:
+*       pixmap: Handle to a pixmap returned by
+*               dw_pixmap_new..
+*       color:  Transparent RGB color
+* Note: This is only necessary on platforms that
+*       don't handle transparency automatically
+*/
+void API dw_pixmap_set_transparent_color( HPIXMAP pixmap, ULONG color )
+{
+}
+/*
+* Creates a pixmap from internal resource graphic specified by id.
+* Parameters:
+*       handle: Window handle the pixmap is associated with.
+*       id: Resource ID associated with requested pixmap.
+* Returns:
+*       A handle to a pixmap or NULL on failure.
+*/
+HPIXMAP API dw_pixmap_grab(HWND handle, ULONG resid)
+{
+return 0;
+}
+/*
+* Sets the font used by a specified pixmap.
+* Normally the pixmap font is obtained from the associated window handle.
+* However this can be used to override that, or for pixmaps with no window.
+* Parameters:
+*          pixmap: Handle to a pixmap returned by dw_pixmap_new() or
+*                  passed to the application via a callback.
+*          fontname: Name and size of the font in the form "size.fontname"
+* Returns:
+*       DW_ERROR_NONE on success and DW_ERROR_GENERAL on failure.
+*/
+int API dw_pixmap_set_font(HPIXMAP pixmap, const char *fontname)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Destroys an allocated pixmap.
+* Parameters:
+*       pixmap: Handle to a pixmap returned by
+*               dw_pixmap_new..
+*/
+void API dw_pixmap_destroy(HPIXMAP pixmap)
+{
+}
+/*
+* Copies from one item to another.
+* Parameters:
+*       dest: Destination window handle.
+*       destp: Destination pixmap. (choose only one).
+*       xdest: X coordinate of destination.
+*       ydest: Y coordinate of destination.
+*       width: Width of area to copy.
+*       height: Height of area to copy.
+*       src: Source window handle.
+*       srcp: Source pixmap. (choose only one).
+*       xsrc: X coordinate of source.
+*       ysrc: Y coordinate of source.
+*/
+void API dw_pixmap_bitblt(HWND dest, HPIXMAP destp, int xdest, int ydest, int width, int height, HWND src, HPIXMAP srcp, int xsrc, int ysrc)
+{
+}
+/*
+* Copies from one surface to another allowing for stretching.
+* Parameters:
+*       dest: Destination window handle.
+*       destp: Destination pixmap. (choose only one).
+*       xdest: X coordinate of destination.
+*       ydest: Y coordinate of destination.
+*       width: Width of the target area.
+*       height: Height of the target area.
+*       src: Source window handle.
+*       srcp: Source pixmap. (choose only one).
+*       xsrc: X coordinate of source.
+*       ysrc: Y coordinate of source.
+*       srcwidth: Width of area to copy.
+*       srcheight: Height of area to copy.
+* Returns:
+*       DW_ERROR_NONE on success and DW_ERROR_GENERAL on failure.
+*/
+int API dw_pixmap_stretch_bitblt(HWND dest, HPIXMAP destp, int xdest, int ydest, int width, int height, HWND src, HPIXMAP srcp, int xsrc, int ysrc, int srcwidth, int srcheight)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Create a new calendar window (widget) to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       Handle to the created calendar or NULL on error.
+*/
+HWND API dw_calendar_new(ULONG cid)
+{
+return 0;
+}
+/*
+* Sets the current date of a calendar.
+* Parameters:
+*       handle: The handle to the calendar returned by dw_calendar_new().
+*       year, month, day: To set the calendar to display.
+*/
+void API dw_calendar_set_date(HWND handle, unsigned int year, unsigned int month, unsigned int day)
+{
+}
+/*
+* Gets the year, month and day set in the calendar widget.
+* Parameters:
+*       handle: The handle to the calendar returned by dw_calendar_new().
+*       year: Variable to store the year or NULL.
+*       month: Variable to store the month or NULL.
+*       day: Variable to store the day or NULL.
+*/
+void API dw_calendar_get_date(HWND handle, unsigned int *year, unsigned int *month, unsigned int *day)
+{
+}
+/*
+* Causes the embedded HTML widget to take action.
+* Parameters:
+*       handle: Handle to the window.
+*       action: One of the DW_HTML_* constants.
+*/
+void API dw_html_action(HWND handle, int action)
+{
+}
+/*
+* Render raw HTML code in the embedded HTML widget..
+* Parameters:
+*       handle: Handle to the window.
+*       string: String buffer containt HTML code to
+*               be rendered.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_html_raw(HWND handle, const char *string)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Render file or web page in the embedded HTML widget..
+* Parameters:
+*       handle: Handle to the window.
+*       url: Universal Resource Locator of the web or
+*               file object to be rendered.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_html_url(HWND handle, const char *url)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Executes the javascript contained in "script" in the HTML window.
+* Parameters:
+*       handle: Handle to the HTML window.
+*       script: Javascript code to execute.
+*       scriptdata: Data passed to the signal handler.
+* Notes: A DW_SIGNAL_HTML_RESULT event will be raised with scriptdata.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_html_javascript_run(HWND handle, const char *script, void *scriptdata)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Create a new HTML window (widget) to be packed.
+* Parameters:
+*       id: An ID to be used with dw_window_from_id() or 0L.
+* Returns:
+*       Handle to the created html widget or NULL on error.
+*/
+HWND API dw_html_new(unsigned long cid)
+{
+return 0;
+}
+/*
+* Returns the current X and Y coordinates of the mouse pointer.
+* Parameters:
+*       x: Pointer to variable to store X coordinate or NULL.
+*       y: Pointer to variable to store Y coordinate or NULL.
+*/
+void API dw_pointer_query_pos(long *x, long *y)
+{
+}
+/*
+* Sets the X and Y coordinates of the mouse pointer.
+* Parameters:
+*       x: X coordinate.
+*       y: Y coordinate.
+*/
+void API dw_pointer_set_pos(long x, long y)
+{
+}
+/*
+* Create a menu object to be popped up.
+* Parameters:
+*       id: An ID to be used associated with this menu.
+* Returns:
+*       Handle to the created menu or NULL on error.
+*/
+HMENUI API dw_menu_new(ULONG cid)
+{
+return 0;
+}
+/*
+* Create a menubar on a window.
+* Parameters:
+*       location: Handle of a window frame to be attached to.
+* Returns:
+*       Handle to the created menu bar or NULL on error.
+*/
+HMENUI API dw_menubar_new(HWND location)
+{
+return 0;
+}
+/*
+* Destroys a menu created with dw_menubar_new or dw_menu_new.
+* Parameters:
+*       menu: Handle of a menu.
+*/
+void API dw_menu_destroy(HMENUI *menu)
+{
+}
+/*
+* Deletes the menu item specified.
+* Parameters:
+*       menu: The handle to the  menu in which the item was appended.
+*       id: Menuitem id.
+* Returns:
+*       DW_ERROR_NONE (0) on success or DW_ERROR_UNKNOWN on failure.
+*/
+int API dw_menu_delete_item(HMENUI menux, unsigned long id)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Pops up a context menu at given x and y coordinates.
+* Parameters:
+*       menu: The handle the the existing menu.
+*       parent: Handle to the window initiating the popup.
+*       x: X coordinate.
+*       y: Y coordinate.
+*/
+void API dw_menu_popup(HMENUI *menu, HWND parent, int x, int y)
+{
+}
+/*
+* Adds a menuitem or submenu to an existing menu.
+* Parameters:
+*       menu: The handle the the existing menu.
+*       title: The title text on the menu item to be added.
+*       id: An ID to be used for message passing.
+*       flags: Extended attributes to set on the menu.
+*       end: If TRUE memu is positioned at the end of the menu.
+*       check: If TRUE menu is "check"able.
+*       submenu: Handle to an existing menu to be a submenu or NULL.
+* Returns:
+*       Handle to the created menu item or NULL on error.
+*/
+HWND API dw_menu_append_item(HMENUI menux, const char *title, ULONG itemid, ULONG flags, int end, int check, HMENUI submenux)
+{
+return 0;
+}
+/*
+* Sets the state of a menu item check.
+* Deprecated; use dw_menu_item_set_state()
+* Parameters:
+*       menu: The handle the the existing menu.
+*       id: Menuitem id.
+*       check: TRUE for checked FALSE for not checked.
+*/
+void API dw_menu_item_set_check(HMENUI menux, unsigned long itemid, int check)
+{
+}
+/*
+* Sets the state of a menu item.
+* Parameters:
+*       menu: The handle to the existing menu.
+*       id: Menuitem id.
+*       flags: DW_MIS_ENABLED/DW_MIS_DISABLED
+*              DW_MIS_CHECKED/DW_MIS_UNCHECKED
+*/
+void API dw_menu_item_set_state(HMENUI menux, unsigned long itemid, unsigned long state)
+{
+}
+/*
+* Create a notebook object to be packed.
+* Parameters:
+*       id: An ID to be used for getting the resource from the
+*           resource file.
+* Returns:
+*       Handle to the created notebook or NULL on error.
+*/
+HWND API dw_notebook_new(ULONG cid, int top)
+{
+return 0;
+}
+/*
+* Adds a new page to specified notebook.
+* Parameters:
+*          handle: Window (widget) handle.
+*          flags: Any additional page creation flags.
+*          front: If TRUE page is added at the beginning.
+* Returns:
+*       ID of newly created notebook page.
+*/
+unsigned long API dw_notebook_page_new(HWND handle, ULONG flags, int front)
+{
+return 0;
+}
+/*
+* Remove a page from a notebook.
+* Parameters:
+*          handle: Handle to the notebook widget.
+*          pageid: ID of the page to be destroyed.
+*/
+void API dw_notebook_page_destroy(HWND handle, unsigned int pageid)
+{
+}
+/*
+* Queries the currently visible page ID.
+* Parameters:
+*          handle: Handle to the notebook widget.
+* Returns:
+*       ID of visible notebook page.
+*/
+unsigned long API dw_notebook_page_get(HWND handle)
+{
+return 0;
+}
+/*
+* Sets the currently visible page ID.
+* Parameters:
+*          handle: Handle to the notebook widget.
+*          pageid: ID of the page to be made visible.
+*/
+void API dw_notebook_page_set(HWND handle, unsigned int pageid)
+{
+}
+/*
+* Sets the text on the specified notebook tab.
+* Parameters:
+*          handle: Notebook handle.
+*          pageid: Page ID of the tab to set.
+*          text: Pointer to the text to set.
+*/
+void API dw_notebook_page_set_text(HWND handle, ULONG pageid, const char *text)
+{
+}
+/*
+* Sets the text on the specified notebook tab status area.
+* Parameters:
+*          handle: Notebook handle.
+*          pageid: Page ID of the tab to set.
+*          text: Pointer to the text to set.
+*/
+void API dw_notebook_page_set_status_text(HWND handle, ULONG pageid, const char *text)
+{
+}
+/*
+* Packs the specified box into the notebook page.
+* Parameters:
+*          handle: Handle to the notebook to be packed.
+*          pageid: Page ID in the notebook which is being packed.
+*          page: Box handle to be packed.
+*/
+void API dw_notebook_pack(HWND handle, ULONG pageid, HWND page)
+{
+}
+/*
+* Create a new Window Frame.
+* Parameters:
+*       owner: The Owner's window handle or HWND_DESKTOP.
+*       title: The Window title.
+*       flStyle: Style flags.
+* Returns:
+*       Handle to the created window or NULL on error.
+*/
+HWND API dw_window_new(HWND hwndOwner, const char *title, ULONG flStyle)
+{
+return 0;
+}
+/*
+* Call a function from the window (widget)'s context (typically the message loop thread).
+* Parameters:
+*       handle: Window handle of the widget.
+*       function: Function pointer to be called.
+*       data: Pointer to the data to be passed to the function.
+*/
+void API dw_window_function(HWND handle, void *function, void *data)
+{
+}
+/*
+* Changes the appearance of the mouse pointer.
+* Parameters:
+*       handle: Handle to widget for which to change.
+*       cursortype: ID of the pointer you want.
+*/
+void API dw_window_set_pointer(HWND handle, int pointertype)
+{
+}
+/*
+* Makes the window visible.
+* Parameters:
+*           handle: The window handle to make visible.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_show(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Makes the window invisible.
+* Parameters:
+*           handle: The window handle to hide.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_hide(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Sets the colors used by a specified window (widget) handle.
+* Parameters:
+*          handle: The window (widget) handle.
+*          fore: Foreground color in DW_RGB format or a default color index.
+*          back: Background color in DW_RGB format or a default color index.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_set_color(HWND handle, ULONG fore, ULONG back)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Sets the border size of a specified window (widget) handle.
+* Parameters:
+*          handle: The window (widget) handle.
+*          border: Size of the window border in pixels.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_set_border(HWND handle, int border)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Sets the style of a given window (widget).
+* Parameters:
+*          handle: Window (widget) handle.
+*          style: Style features enabled or disabled.
+*          mask: Corresponding bitmask of features to be changed.
+*/
+void API dw_window_set_style(HWND handle, ULONG style, ULONG mask)
+{
+}
+/*
+* Sets the current focus item for a window/dialog.
+* Parameters:
+*         handle: Handle to the dialog item to be focused.
+* Remarks:
+*          This is for use after showing the window/dialog.
+*/
+void API dw_window_set_focus(HWND handle)
+{
+}
+/*
+* Sets the default focus item for a window/dialog.
+* Parameters:
+*         window: Toplevel window or dialog.
+*         defaultitem: Handle to the dialog item to be default.
+* Remarks:
+*          This is for use before showing the window/dialog.
+*/
+void API dw_window_default(HWND handle, HWND defaultitem)
+{
+}
+/*
+* Sets window to click the default dialog item when an ENTER is pressed.
+* Parameters:
+*         window: Window (widget) to look for the ENTER press.
+*         next: Window (widget) to move to next (or click)
+*/
+void API dw_window_click_default(HWND handle, HWND next)
+{
+}
+/*
+* Captures the mouse input to this window even if it is outside the bounds.
+* Parameters:
+*       handle: Handle to receive mouse input.
+*/
+void API dw_window_capture(HWND handle)
+{
+}
+/*
+* Releases previous mouse capture.
+*/
+void API dw_window_release(void)
+{
+}
+/*
+* Changes a window's parent to newparent.
+* Parameters:
+*           handle: The window handle to destroy.
+*           newparent: The window's new parent window.
+*/
+void API dw_window_reparent(HWND handle, HWND newparent)
+{
+}
+/*
+* Sets the font used by a specified window (widget) handle.
+* Parameters:
+*          handle: The window (widget) handle.
+*          fontname: Name and size of the font in the form "size.fontname"
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_set_font(HWND handle, const char *fontname)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Returns the current font for the specified window.
+* Parameters:
+*           handle: The window handle from which to obtain the font.
+* Returns:
+*       A malloc()ed font name string to be dw_free()ed or NULL on error.
+*/
+char * API dw_window_get_font(HWND handle)
+{
+return NULL;
+}
+/* Allows the user to choose a font using the system's font chooser dialog.
+* Parameters:
+*       currfont: current font
+* Returns:
+*       A malloced buffer with the selected font or NULL on error.
+*/
+char * API dw_font_choose(const char *currfont)
+{
+return NULL;
+}
+/*
+* Sets the default font used on text based widgets.
+* Parameters:
+*           fontname: Font name in Dynamic Windows format.
+*/
+void API dw_font_set_default(const char *fontname)
+{
+}
+/*
+* Destroys a window and all of it's children.
+* Parameters:
+*           handle: The window handle to destroy.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_destroy(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Gets the text used for a given window.
+* Parameters:
+*       handle: Handle to the window.
+* Returns:
+*       The text associsated with a given window or NULL on error.
+*/
+char * API dw_window_get_text(HWND handle)
+{
+return NULL;
+}
+/*
+* Sets the text used for a given window.
+* Parameters:
+*       handle: Handle to the window.
+*       text: The text associsated with a given window.
+*/
+void API dw_window_set_text(HWND handle, const char *text)
+{
+}
+/*
+* Sets the text used for a given window's floating bubble help.
+* Parameters:
+*       handle: Handle to the window (widget).
+*       bubbletext: The text in the floating bubble tooltip.
+*/
+void API dw_window_set_tooltip(HWND handle, const char *bubbletext)
+{
+}
+/*
+* Disables given window (widget).
+* Parameters:
+*       handle: Handle to the window.
+*/
+void API dw_window_disable(HWND handle)
+{
+}
+/*
+* Enables given window (widget).
+* Parameters:
+*       handle: Handle to the window.
+*/
+void API dw_window_enable(HWND handle)
+{
+}
+/*
+* Sets the bitmap used for a given static window.
+* Parameters:
+*       handle: Handle to the window.
+*       id: An ID to be used to specify the icon,
+*           (pass 0 if you use the filename param)
+*       data: memory buffer containing image (Bitmap on OS/2 or
+*                 Windows and a pixmap on Unix, pass
+*                 NULL if you use the id param)
+*       len: Length of data passed
+*/
+void API dw_window_set_bitmap_from_data(HWND handle, unsigned long cid, const char *data, int len)
+{
+}
+/*
+* Sets the bitmap used for a given static window.
+* Parameters:
+*       handle: Handle to the window.
+*       id: An ID to be used to specify the icon,
+*           (pass 0 if you use the filename param)
+*       filename: a path to a file (Bitmap on OS/2 or
+*                 Windows and a pixmap on Unix, pass
+*                 NULL if you use the id param)
+*/
+void API dw_window_set_bitmap(HWND handle, unsigned long resid, const char *filename)
+{
+}
+/*
+* Sets the icon used for a given window.
+* Parameters:
+*       handle: Handle to the window.
+*       icon: Handle to icon to be used.
+*/
+void API dw_window_set_icon(HWND handle, HICN icon)
+{
+}
+/*
+* Gets the child window handle with specified ID.
+* Parameters:
+*       handle: Handle to the parent window.
+*       id: Integer ID of the child.
+* Returns:
+*       HWND of window with ID or NULL on error.
+*/
+HWND API dw_window_from_id(HWND handle, int id)
+{
+return 0;
+}
+/*
+* Minimizes or Iconifies a top-level window.
+* Parameters:
+*           handle: The window handle to minimize.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_minimize(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/* Causes entire window to be invalidated and redrawn.
+* Parameters:
+*           handle: Toplevel window handle to be redrawn.
+*/
+void API dw_window_redraw(HWND handle)
+{
+}
+/*
+* Makes the window topmost.
+* Parameters:
+*           handle: The window handle to make topmost.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_raise(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Makes the window bottommost.
+* Parameters:
+*           handle: The window handle to make bottommost.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_window_lower(HWND handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Sets the size of a given window (widget).
+* Parameters:
+*          handle: Window (widget) handle.
+*          width: New width in pixels.
+*          height: New height in pixels.
+*/
+void API dw_window_set_size(HWND handle, ULONG width, ULONG height)
+{
+}
+/*
+* Gets the size the system thinks the widget should be.
+* Parameters:
+*       handle: Window (widget) handle of the item to query.
+*       width: Width in pixels of the item or NULL if not needed.
+*       height: Height in pixels of the item or NULL if not needed.
+*/
+void API dw_window_get_preferred_size(HWND handle, int *width, int *height)
+{
+}
+/*
+* Sets the gravity of a given window (widget).
+* Gravity controls which corner of the screen and window the position is relative to.
+* Parameters:
+*          handle: Window (widget) handle.
+*          horz: DW_GRAV_LEFT (default), DW_GRAV_RIGHT or DW_GRAV_CENTER.
+*          vert: DW_GRAV_TOP (default), DW_GRAV_BOTTOM or DW_GRAV_CENTER.
+*/
+void API dw_window_set_gravity(HWND handle, int horz, int vert)
+{
+}
+/*
+* Sets the position of a given window (widget).
+* Parameters:
+*          handle: Window (widget) handle.
+*          x: X location from the bottom left.
+*          y: Y location from the bottom left.
+*/
+void API dw_window_set_pos(HWND handle, LONG x, LONG y)
+{
+}
+/*
+* Sets the position and size of a given window (widget).
+* Parameters:
+*          handle: Window (widget) handle.
+*          x: X location from the bottom left.
+*          y: Y location from the bottom left.
+*          width: Width of the widget.
+*          height: Height of the widget.
+*/
+void API dw_window_set_pos_size(HWND handle, LONG x, LONG y, ULONG width, ULONG height)
+{
+}
+/*
+* Gets the position and size of a given window (widget).
+* Parameters:
+*          handle: Window (widget) handle.
+*          x: X location from the bottom left or NULL.
+*          y: Y location from the bottom left or NULL.
+*          width: Width of the widget or NULL.
+*          height: Height of the widget or NULL.
+*/
+void API dw_window_get_pos_size(HWND handle, LONG *x, LONG *y, ULONG *width, ULONG *height)
+{
+}
+/*
+* Returns the width of the screen.
+*/
+int API dw_screen_width(void)
+{
+return 0;
+}
+/*
+* Returns the height of the screen.
+*/
+int API dw_screen_height(void)
+{
+return 0;
+}
+/* This should return the current color depth. */
+unsigned long API dw_color_depth_get(void)
+{
+return 0;
+}
+/*
+* Returns some information about the current operating environment.
+* Parameters:
+*       env: Pointer to a DWEnv struct.
+*/
+void API dw_environment_query(DWEnv *env)
+{
+strcpy(env->osName, "Unknown");
+strcpy(env->buildDate, __DATE__);
+strcpy(env->buildTime, __TIME__);
+env->DWMajorVersion = DW_MAJOR_VERSION;
+env->DWMinorVersion = DW_MINOR_VERSION;
+env->DWSubVersion = DW_SUB_VERSION;
+env->MajorVersion = 0; /* Operating system major */
+env->MinorVersion = 0; /* Operating system minor */
+env->MajorBuild = 0; /* Build versions... if available */
+env->MinorBuild = 0;
+}
+/*
+* Emits a beep.
+* Parameters:
+*       freq: Frequency.
+*       dur: Duration.
+*/
+void API dw_beep(int freq, int dur)
+{
+}
+/* Call this after drawing to the screen to make sure
+* anything you have drawn is visible.
+*/
+void API dw_flush(void)
+{
+}
+/*
+* Add a named user data item to a window handle.
+* Parameters:
+*       window: Window handle to save data to.
+*       dataname: A string pointer identifying which data to be saved.
+*       data: User data to be saved to the window handle.
+*/
+void API dw_window_set_data(HWND window, const char *dataname, void *data)
+{
+}
+/*
+* Gets a named user data item from a window handle.
+* Parameters:
+*       window: Window handle to get data from.
+*       dataname: A string pointer identifying which data to get.
+* Returns:
+*       Pointer to data or NULL if no data is available.
+*/
+void * API dw_window_get_data(HWND window, const char *dataname)
+{
+return NULL;
+}
+/*
+* Add a callback to a timer event.
+* Parameters:
+*       interval: Milliseconds to delay between calls.
+*       sigfunc: The pointer to the function to be used as the callback.
+*       data: User data to be passed to the handler function.
+* Returns:
+*       Timer ID for use with dw_timer_disconnect(), 0 on error.
+*/
+int API dw_timer_connect(int interval, void *sigfunc, void *data)
+{
+return 0;
+}
+/*
+* Removes timer callback.
+* Parameters:
+*       id: Timer ID returned by dw_timer_connect().
+*/
+void API dw_timer_disconnect(int timerid)
+{
+}
+/*
+* Add a callback to a window event.
+* Parameters:
+*       window: Window handle of signal to be called back.
+*       signame: A string pointer identifying which signal to be hooked.
+*       sigfunc: The pointer to the function to be used as the callback.
+*       data: User data to be passed to the handler function.
+*/
+void API dw_signal_connect(HWND window, const char *signame, void *sigfunc, void *data)
+{
+dw_signal_connect_data(window, signame, sigfunc, NULL, data);
+}
+/*
+* Add a callback to a window event with a closure callback.
+* Parameters:
+*       window: Window handle of signal to be called back.
+*       signame: A string pointer identifying which signal to be hooked.
+*       sigfunc: The pointer to the function to be used as the callback.
+*       discfunc: The pointer to the function called when this handler is removed.
+*       data: User data to be passed to the handler function.
+*/
+void API dw_signal_connect_data(HWND window, const char *signame, void *sigfunc, void *discfunc, void *data)
+{
+}
+/*
+* Removes callbacks for a given window with given name.
+* Parameters:
+*       window: Window handle of callback to be removed.
+*       signame: Signal name to be matched on window.
+*/
+void API dw_signal_disconnect_by_name(HWND window, const char *signame)
+{
+}
+/*
+* Removes all callbacks for a given window.
+* Parameters:
+*       window: Window handle of callback to be removed.
+*/
+void API dw_signal_disconnect_by_window(HWND window)
+{
+}
+/*
+* Removes all callbacks for a given window with specified data.
+* Parameters:
+*       window: Window handle of callback to be removed.
+*       data: Pointer to the data to be compared against.
+*/
+void API dw_signal_disconnect_by_data(HWND window, void *data)
+{
+}
+/* Open a shared library and return a handle.
+* Parameters:
+*         name: Base name of the shared library.
+*         handle: Pointer to a module handle,
+*                 will be filled in with the handle.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_module_load(const char *name, HMOD *handle)
+{
+return DW_ERROR_UNKNOWN;
+}
+/* Queries the address of a symbol within open handle.
+* Parameters:
+*         handle: Module handle returned by dw_module_load()
+*         name: Name of the symbol you want the address of.
+*         func: A pointer to a function pointer, to obtain
+*               the address.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_module_symbol(HMOD handle, const char *name, void**func)
+{
+return DW_ERROR_UNKNOWN;
+}
+/* Frees the shared library previously opened.
+* Parameters:
+*         handle: Module handle returned by dw_module_load()
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_module_close(HMOD handle)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Returns the handle to an unnamed mutex semaphore or NULL on error.
+*/
+HMTX API dw_mutex_new(void)
+{
+return NULL;
+}
+/*
+* Closes a semaphore created by dw_mutex_new().
+* Parameters:
+*       mutex: The handle to the mutex returned by dw_mutex_new().
+*/
+void API dw_mutex_close(HMTX mutex)
+{
+}
+/*
+* Tries to gain access to the semaphore, if it can't it blocks.
+* Parameters:
+*       mutex: The handle to the mutex returned by dw_mutex_new().
+*/
+void API dw_mutex_lock(HMTX mutex)
+{
+#if 0
+/* We need to handle locks from the main thread differently...
+* since we can't stop message processing... otherwise we
+* will deadlock... so try to acquire the lock and continue
+* processing messages in between tries.
+*/
+if(_dw_thread == dw_thread_id())
+{
+while(/* Attempt to lock the mutex */)
+{
+/* Process any pending events */
+while(dw_main_iteration())
+{
+/* Just loop */
+}
+}
+}
+else
+{
+/* Lock the mutex */
+}
+#endif
+}
+/*
+* Tries to gain access to the semaphore.
+* Parameters:
+*       mutex: The handle to the mutex returned by dw_mutex_new().
+* Returns:
+*       DW_ERROR_NONE on success, DW_ERROR_TIMEOUT if it is already locked.
+*/
+int API dw_mutex_trylock(HMTX mutex)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Reliquishes the access to the semaphore.
+* Parameters:
+*       mutex: The handle to the mutex returned by dw_mutex_new().
+*/
+void API dw_mutex_unlock(HMTX mutex)
+{
+}
+/*
+* Returns the handle to an unnamed event semaphore or NULL on error.
+*/
+HEV API dw_event_new(void)
+{
+return NULL;
+}
+/*
+* Resets a semaphore created by dw_event_new().
+* Parameters:
+*       eve: The handle to the event returned by dw_event_new().
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_event_reset (HEV eve)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Posts a semaphore created by dw_event_new(). Causing all threads
+* waiting on this event in dw_event_wait to continue.
+* Parameters:
+*       eve: The handle to the event returned by dw_event_new().
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_event_post (HEV eve)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Waits on a semaphore created by dw_event_new(), until the
+* event gets posted or until the timeout expires.
+* Parameters:
+*       eve: The handle to the event returned by dw_event_new().
+*   timeout: Number of milliseconds before timing out
+*                  or -1 if indefinite.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*       DW_ERROR_TIMEOUT (2) if the timeout has expired.
+*       Other values on other error.
+*/
+int API dw_event_wait(HEV eve, unsigned long timeout)
+{
+return DW_ERROR_GENERAL;
+}
+/*
+* Closes a semaphore created by dw_event_new().
+* Parameters:
+*       eve: The handle to the event returned by dw_event_new().
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_event_close(HEV *eve)
+{
+return DW_ERROR_GENERAL;
+}
+/* Create a named event semaphore which can be
+* opened from other processes.
+* Parameters:
+*         name: Name given to semaphore which can be opened
+*               by other processes.
+* Returns:
+*       Handle to event semaphore or NULL on error.
+*/
+HEV API dw_named_event_new(const char *name)
+{
+return NULL;
+}
+/* Open an already existing named event semaphore.
+* Parameters:
+*         name: Name given to semaphore which can be opened
+*               by other processes.
+* Returns:
+*       Handle to event semaphore or NULL on error.
+*/
+HEV API dw_named_event_get(const char *name)
+{
+return NULL;
+}
+/* Resets the event semaphore so threads who call wait
+* on this semaphore will block.
+* Parameters:
+*         eve: Handle to the semaphore obtained by
+*              an get or new call.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_named_event_reset(HEV eve)
+{
+return DW_ERROR_GENERAL;
+}
+/* Sets the posted state of an event semaphore, any threads
+* waiting on the semaphore will no longer block.
+* Parameters:
+*         eve: Handle to the semaphore obtained by
+*              an get or new call.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_named_event_post(HEV eve)
+{
+return DW_ERROR_GENERAL;
+}
+/* Waits on the specified semaphore until it becomes
+* posted, or returns immediately if it already is posted.
+* Parameters:
+*         eve: Handle to the semaphore obtained by
+*              an get or new call.
+*         timeout: Number of milliseconds before timing out
+*                  or -1 if indefinite.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_named_event_wait(HEV eve, unsigned long timeout)
+{
+return DW_ERROR_UNKNOWN;
+}
+/* Release this semaphore, if there are no more open
+* handles on this semaphore the semaphore will be destroyed.
+* Parameters:
+*         eve: Handle to the semaphore obtained by
+*              an get or new call.
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_named_event_close(HEV eve)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Initializes the Dynamic Windows engine.
+* Parameters:
+*           newthread: True if this is the only thread.
+*                      False if there is already a message loop running.
+*           argc: Passed in from main()
+*           argv: Passed in from main()
+* Returns:
+*       DW_ERROR_NONE (0) on success.
+*/
+int API dw_init(int newthread, int argc, char *argv[])
+{
+return DW_ERROR_NONE;
+}
+/*
+* Allocates a shared memory region with a name.
+* Parameters:
+*         dest: A pointer to a pointer to receive the memory address.
+*         size: Size in bytes of the shared memory region to allocate.
+*         name: A string pointer to a unique memory name.
+* Returns:
+*       Handle to shared memory or NULL on error.
+*/
+HSHM API dw_named_memory_new(void **dest, int size, const char *name)
+{
+return NULL;
+}
+/*
+* Aquires shared memory region with a name.
+* Parameters:
+*       dest: A pointer to a pointer to receive the memory address.
+*       size: Size in bytes of the shared memory region to requested.
+*       name: A string pointer to a unique memory name.
+* Returns:
+*       Handle to shared memory or NULL on error.
+*/
+HSHM API dw_named_memory_get(void **dest, int size, const char *name)
+{
+return NULL;
+}
+/*
+* Frees a shared memory region previously allocated.
+* Parameters:
+*       handle: Handle obtained from dw_named_memory_new().
+*       ptr: The memory address aquired with dw_named_memory_new().
+* Returns:
+*       DW_ERROR_NONE (0) on success or DW_ERROR_UNKNOWN (-1) on error.
+*/
+int API dw_named_memory_free(HSHM handle, void *ptr)
+{
+int rc = DW_ERROR_UNKNOWN;
+return rc;
+}
+/*
+* Generally an internal function called from a newly created
+* thread to setup the Dynamic Windows environment for the thread.
+* However it is exported so language bindings can call it when
+* they create threads that require access to Dynamic Windows.
+*/
+void API _dw_init_thread(void)
+{
+}
+/*
+* Generally an internal function called from a terminating
+* thread to cleanup the Dynamic Windows environment for the thread.
+* However it is exported so language bindings can call it when
+* they exit threads that require access to Dynamic Windows.
+*/
+void API _dw_deinit_thread(void)
+{
+}
+/*
+* Creates a new thread with a starting point of func.
+* Parameters:
+*       func: Function which will be run in the new thread.
+*       data: Parameter(s) passed to the function.
+*       stack: Stack size of new thread (OS/2 and Windows only).
+* Returns:
+*       Thread ID on success or DW_ERROR_UNKNOWN (-1) on error.
+*/
+DWTID API dw_thread_new(void *func, void *data, int stack)
+{
+return (DWTID)DW_ERROR_UNKNOWN;
+}
+/*
+* Ends execution of current thread immediately.
+*/
+void API dw_thread_end(void)
+{
+}
+/*
+* Returns the current thread's ID.
+*/
+DWTID API dw_thread_id(void)
+{
+return (DWTID)0;
+}
+/*
+* Cleanly terminates a DW session, should be signal handler safe.
+*/
+void API dw_shutdown(void)
+{
+}
+/*
+* Execute and external program in a seperate session.
+* Parameters:
+*       program: Program name with optional path.
+*       type: Either DW_EXEC_CON or DW_EXEC_GUI.
+*       params: An array of pointers to string arguements.
+* Returns:
+*       Process ID on success or DW_ERROR_UNKNOWN (-1) on error.
+*/
+int API dw_exec(const char *program, int type, char **params)
+{
+int ret = DW_ERROR_UNKNOWN;
+return ret;
+}
+/*
+* Loads a web browser pointed at the given URL.
+* Parameters:
+*       url: Uniform resource locator.
+* Returns:
+*       DW_ERROR_UNKNOWN (-1) on error; DW_ERROR_NONE (0) or a positive Process ID on success.
+*/
+int API dw_browse(const char *url)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Creates a new print object.
+* Parameters:
+*       jobname: Name of the print job to show in the queue.
+*       flags: Flags to initially configure the print object.
+*       pages: Number of pages to print.
+*       drawfunc: The pointer to the function to be used as the callback.
+*       drawdata: User data to be passed to the handler function.
+* Returns:
+*       A handle to the print object or NULL on failure.
+*/
+HPRINT API dw_print_new(const char *jobname, unsigned long flags, unsigned int pages, void *drawfunc, void *drawdata)
+{
+return NULL;
+}
+/*
+* Runs the print job, causing the draw page callbacks to fire.
+* Parameters:
+*       print: Handle to the print object returned by dw_print_new().
+*       flags: Flags to run the print job.
+* Returns:
+*       DW_ERROR_UNKNOWN on error or DW_ERROR_NONE on success.
+*/
+int API dw_print_run(HPRINT print, unsigned long flags)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Cancels the print job, typically called from a draw page callback.
+* Parameters:
+*       print: Handle to the print object returned by dw_print_new().
+*/
+void API dw_print_cancel(HPRINT print)
+{
+}
+/*
+* Creates a new system notification if possible.
+* Parameters:
+*         title: The short title of the notification.
+*         imagepath: Path to an image to display or NULL if none.
+*         description: A longer description of the notification,
+*                      or NULL if none is necessary.
+* Returns:
+*         A handle to the notification which can be used to attach a "clicked" event if desired,
+*         or NULL if it fails or notifications are not supported by the system.
+* Remarks:
+*          This will create a system notification that will show in the notifaction panel
+*          on supported systems, which may be clicked to perform another task.
+*/
+HWND API dw_notification_new(const char *title, const char *imagepath, const char *description, ...)
+{
+return 0;
+}
+/*
+* Sends a notification created by dw_notification_new() after attaching signal handler.
+* Parameters:
+*         notification: The handle to the notification returned by dw_notification_new().
+* Returns:
+*         DW_ERROR_NONE on success, DW_ERROR_UNKNOWN on error or not supported.
+*/
+int API dw_notification_send(HWND notification)
+{
+return DW_ERROR_UNKNOWN;
+}
+/*
+* Converts a UTF-8 encoded string into a wide string.
+* Parameters:
+*       utf8string: UTF-8 encoded source string.
+* Returns:
+*       Wide string that needs to be freed with dw_free()
+*       or NULL on failure.
+*/
+wchar_t * API dw_utf8_to_wchar(const char *utf8string)
+{
+return NULL;
+}
+/*
+* Converts a wide string into a UTF-8 encoded string.
+* Parameters:
+*       wstring: Wide source string.
+* Returns:
+*       UTF-8 encoded string that needs to be freed with dw_free()
+*       or NULL on failure.
+*/
+char * API dw_wchar_to_utf8(const wchar_t *wstring)
+{
+return NULL;
+}
+/*
+* Gets the state of the requested library feature.
+* Parameters:
+*       feature: The requested feature for example DW_FEATURE_DARK_MODE
+* Returns:
+*       DW_FEATURE_UNSUPPORTED if the library or OS does not support the feature.
+*       DW_FEATURE_DISABLED if the feature is supported but disabled.
+*       DW_FEATURE_ENABLED if the feature is supported and enabled.
+*       Other value greater than 1, same as enabled but with extra info.
+*/
+int API dw_feature_get(DWFEATURE feature)
+{
+switch(feature)
+{
+#if 0
+case DW_FEATURE_HTML:                    /* Supports the HTML Widget */
+case DW_FEATURE_HTML_RESULT:             /* Supports the DW_SIGNAL_HTML_RESULT callback */
+case DW_FEATURE_WINDOW_BORDER:           /* Supports custom window border sizes */
+case DW_FEATURE_WINDOW_TRANSPARENCY:     /* Supports window frame transparency */
+case DW_FEATURE_DARK_MODE:               /* Supports Dark Mode user interface */
+case DW_FEATURE_MLE_AUTO_COMPLETE:       /* Supports auto completion in Multi-line Edit boxes */
+case DW_FEATURE_MLE_WORD_WRAP:           /* Supports word wrapping in Multi-line Edit boxes */
+case DW_FEATURE_CONTAINER_STRIPE:        /* Supports striped line display in container widgets */
+case DW_FEATURE_MDI:                     /* Supports Multiple Document Interface window frame */
+case DW_FEATURE_NOTEBOOK_STATUS_TEXT:    /* Supports status text area on notebook/tabbed controls */
+case DW_FEATURE_NOTIFICATION:            /* Supports sending system notifications */
+case DW_FEATURE_UTF8_UNICODE:            /* Supports UTF8 encoded Unicode text */
+case DW_FEATURE_MLE_RICH_EDIT:           /* Supports Rich Edit based MLE control (Windows) */
+case DW_FEATURE_TASK_BAR:                /* Supports icons in the taskbar or similar system widget */
+case DW_FEATURE_TREE:                    .* Supports the Tree Widget */
+return DW_FEATURE_ENABLED;
+#endif
+default:
+return DW_FEATURE_UNSUPPORTED;
+}
+}
+/*
+* Sets the state of the requested library feature.
+* Parameters:
+*       feature: The requested feature for example DW_FEATURE_DARK_MODE
+*       state: DW_FEATURE_DISABLED, DW_FEATURE_ENABLED or any value greater than 1.
+* Returns:
+*       DW_FEATURE_UNSUPPORTED if the library or OS does not support the feature.
+*       DW_ERROR_NONE if the feature is supported and successfully configured.
+*       DW_ERROR_GENERAL if the feature is supported but could not be configured.
+* Remarks:
+*       These settings are typically used during dw_init() so issue before
+*       setting up the library with dw_init().
+*/
+int API dw_feature_set(DWFEATURE feature, int state)
+{
+switch(feature)
+{
+/* These features are supported but not configurable */
+#if 0
+case DW_FEATURE_HTML:                    /* Supports the HTML Widget */
+case DW_FEATURE_HTML_RESULT:             /* Supports the DW_SIGNAL_HTML_RESULT callback */
+case DW_FEATURE_WINDOW_BORDER:           /* Supports custom window border sizes */
+case DW_FEATURE_WINDOW_TRANSPARENCY:     /* Supports window frame transparency */
+case DW_FEATURE_DARK_MODE:               /* Supports Dark Mode user interface */
+case DW_FEATURE_MLE_AUTO_COMPLETE:       /* Supports auto completion in Multi-line Edit boxes */
+case DW_FEATURE_MLE_WORD_WRAP:           /* Supports word wrapping in Multi-line Edit boxes */
+case DW_FEATURE_CONTAINER_STRIPE:        /* Supports striped line display in container widgets */
+case DW_FEATURE_MDI:                     /* Supports Multiple Document Interface window frame */
+case DW_FEATURE_NOTEBOOK_STATUS_TEXT:    /* Supports status text area on notebook/tabbed controls */
+case DW_FEATURE_NOTIFICATION:            /* Supports sending system notifications */
+case DW_FEATURE_UTF8_UNICODE:            /* Supports UTF8 encoded Unicode text */
+case DW_FEATURE_MLE_RICH_EDIT:           /* Supports Rich Edit based MLE control (Windows) */
+case DW_FEATURE_TASK_BAR:                /* Supports icons in the taskbar or similar system widget */
+case DW_FEATURE_TREE:                    .* Supports the Tree Widget */
+return DW_ERROR_GENERAL;
+#endif
+/* These features are supported and configurable */
+default:
+return DW_FEATURE_UNSUPPORTED;
+}
+}
+#ifdef __cplusplus
+}
+#endif

Mercurial > dwindows

comparison android/dw.cpp @ 2473:aa420e366b2b