# HG changeset patch
# User bsmith@81767d24-ef19-dc11-ae90-00e081727c95
# Date 1052217113 0
# Node ID 456c13a6e33299e24e3bd7f26c3b549d8594e1f0
# Parent  5326544ab2ec5f40e3ed03057b7e8490f3d862f7
A basically empty DW source file, if we ever port to another platform
this may be a decent starting point, assuming too much doesn't get added
in the meantime.  Meanwhile this will become the MacOS port.

diff -r 5326544ab2ec -r 456c13a6e332 mac/dw.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mac/dw.c	Tue May 06 10:31:53 2003 +0000
@@ -0,0 +1,3002 @@
+/*
+ * Dynamic Windows:
+ *          A GTK like implementation of the MacOS GUI
+ *
+ * (C) 2003 Brian Smith <dbsoft@technologist.com>
+ *
+ */
+#include "dw.h"
+
+void _do_resize(Box *thisbox, int x, int y);
+
+typedef struct _sighandler
+{
+	struct _sighandler	*next;
+	ULONG message;
+	HWND window;
+	int id;
+	void *signalfunction;
+	void *data;
+
+} SignalHandler;
+
+SignalHandler *Root = NULL;
+
+typedef struct
+{
+	ULONG message;
+	char name[30];
+
+} SignalList;
+
+/* List of signals and their equivilent MacOS event */
+#define SIGNALMAX 15
+
+SignalList SignalTranslate[SIGNALMAX] = {
+	{ nullEvent,       DW_SIGNAL_CONFIGURE },
+	{ keyUp,           DW_SIGNAL_KEY_PRESS },
+	{ mouseDown,       DW_SIGNAL_BUTTON_PRESS },
+	{ mouseUp,         DW_SIGNAL_BUTTON_RELEASE },
+	{ nullEvent,       DW_SIGNAL_MOTION_NOTIFY },
+	{ nullEvent,       DW_SIGNAL_DELETE },
+	{ updateEvt,       DW_SIGNAL_EXPOSE },
+	{ nullEvent,       DW_SIGNAL_CLICKED },
+	{ nullEVent,       DW_SIGNAL_ITEM_ENTER },
+	{ nullEvent,       DW_SIGNAL_ITEM_CONTEXT },
+	{ nullEvent,       DW_SIGNAL_LIST_SELECT },
+	{ nullEVent,       DW_SIGNAL_ITEM_SELECT },
+	{ activateEvt,     DW_SIGNAL_SET_FOCUS },
+	{ nullEvent,       DW_SIGNAL_VALUE_CHANGED },
+	{ nullEvent,       DW_SIGNAL_SWITCH_PAGE }
+};
+
+/* This function adds a signal handler callback into the linked list.
+ */
+void _new_signal(ULONG message, HWND window, int id, void *signalfunction, void *data)
+{
+	SignalHandler *new = malloc(sizeof(SignalHandler));
+
+	new->message = message;
+	new->window = window;
+	new->id = id;
+	new->signalfunction = signalfunction;
+	new->data = data;
+	new->next = NULL;
+
+	if (!Root)
+		Root = new;
+	else
+	{
+		SignalHandler *prev = NULL, *tmp = Root;
+		while(tmp)
+		{
+			if(tmp->message == message &&
+			   tmp->window == window &&
+			   tmp->signalfunction == signalfunction)
+			{
+				tmp->data = data;
+				free(new);
+				return;
+			}
+			prev = tmp;
+			tmp = tmp->next;
+		}
+		if(prev)
+			prev->next = new;
+		else
+			Root = new;
+	}
+}
+
+/* Finds the message number for a given signal name */
+ULONG _findsigmessage(char *signame)
+{
+	int z;
+
+	for(z=0;z<SIGNALMAX;z++)
+	{
+		if(stricmp(signame, SignalTranslate[z].name) == 0)
+			return SignalTranslate[z].message;
+	}
+	return 0L;
+}
+
+void *_get_window_pointer(HWND handle)
+{
+}
+
+/* This function will recursively search a box and add up the total height of it */
+void _count_size(HWND box, int type, int *xsize, int *xorigsize)
+{
+	int size = 0, origsize = 0, z;
+	Box *tmp = _get_window_pointer(box);
+
+	if(!tmp)
+	{
+		*xsize = *xorigsize = 0;
+		return;
+	}
+
+	if(type == tmp->type)
+	{
+		/* If the box is going in the direction we want, then we
+		 * return the entire sum of the items.
+		 */
+		for(z=0;z<tmp->count;z++)
+		{
+			if(tmp->items[z].type == TYPEBOX)
+			{
+				int s, os;
+
+				_count_size(tmp->items[z].hwnd, type, &s, &os);
+				size += s;
+				origsize += os;
+			}
+			else
+			{
+				size += (type == DW_HORZ ? tmp->items[z].width : tmp->items[z].height);
+				origsize += (type == DW_HORZ ? tmp->items[z].origwidth : tmp->items[z].origheight);
+			}
+		}
+	}
+	else
+	{
+		/* If the box is not going in the direction we want, then we only
+		 * want to return the maximum value.
+		 */
+		int tmpsize = 0, tmporigsize = 0;
+
+		for(z=0;z<tmp->count;z++)
+		{
+			if(tmp->items[z].type == TYPEBOX)
+				_count_size(tmp->items[z].hwnd, type, &tmpsize, &tmporigsize);
+			else
+			{
+				tmpsize = (type == DW_HORZ ? tmp->items[z].width : tmp->items[z].height);
+				tmporigsize = (type == DW_HORZ ? tmp->items[z].origwidth : tmp->items[z].origheight);
+			}
+
+			if(tmpsize > size)
+				size = tmpsize;
+		}
+	}
+
+	*xsize = size;
+	*xorigsize = origsize;
+}
+
+/* This function calculates how much space the widgets and boxes require
+ * and does expansion as necessary.
+ */
+int _resize_box(Box *thisbox, int *depth, int x, int y, int *usedx, int *usedy,
+				int pass, int *usedpadx, int *usedpady)
+{
+	int z, currentx = 0, currenty = 0;
+	int uymax = 0, uxmax = 0;
+	int upymax = 0, upxmax = 0;
+	/* Used for the SIZEEXPAND */
+	int nux = *usedx, nuy = *usedy;
+	int nupx = *usedpadx, nupy = *usedpady;
+
+	(*usedx) += (thisbox->pad * 2);
+	(*usedy) += (thisbox->pad * 2);
+
+	for(z=0;z<thisbox->count;z++)
+	{
+		if(thisbox->items[z].type == TYPEBOX)
+		{
+			int initialx, initialy;
+			Box *tmp = _get_window_pointer(thisbox->items[z].hwnd);
+
+			initialx = x - (*usedx);
+			initialy = y - (*usedy);
+
+			if(tmp)
+			{
+				int newx, newy;
+				int nux = *usedx, nuy = *usedy;
+				int upx = *usedpadx + (tmp->pad*2), upy = *usedpady + (tmp->pad*2);
+
+				/* On the second pass we know how big the box needs to be and how
+				 * much space we have, so we can calculate a ratio for the new box.
+				 */
+				if(pass == 2)
+				{
+					int deep = *depth + 1;
+
+					_resize_box(tmp, &deep, x, y, &nux, &nuy, 1, &upx, &upy);
+
+					tmp->upx = upx - *usedpadx;
+					tmp->upy = upy - *usedpady;
+
+					newx = x - nux;
+					newy = y - nuy;
+
+					tmp->width = thisbox->items[z].width = initialx - newx;
+					tmp->height = thisbox->items[z].height = initialy - newy;
+
+					tmp->parentxratio = thisbox->xratio;
+					tmp->parentyratio = thisbox->yratio;
+
+					tmp->parentpad = tmp->pad;
+
+					/* Just in case */
+					tmp->xratio = thisbox->xratio;
+					tmp->yratio = thisbox->yratio;
+
+					if(thisbox->type == DW_VERT)
+					{
+						if((thisbox->items[z].width-((thisbox->items[z].pad*2)+(tmp->pad*2)))!=0)
+							tmp->xratio = ((float)((thisbox->items[z].width * thisbox->xratio)-((thisbox->items[z].pad*2)+(tmp->pad*2))))/((float)(thisbox->items[z].width-((thisbox->items[z].pad*2)+(tmp->pad*2))));
+					}
+					else
+					{
+						if((thisbox->items[z].width-tmp->upx)!=0)
+							tmp->xratio = ((float)((thisbox->items[z].width * thisbox->xratio)-tmp->upx))/((float)(thisbox->items[z].width-tmp->upx));
+					}
+					if(thisbox->type == DW_HORZ)
+					{
+						if((thisbox->items[z].height-((thisbox->items[z].pad*2)+(tmp->pad*2)))!=0)
+							tmp->yratio = ((float)((thisbox->items[z].height * thisbox->yratio)-((thisbox->items[z].pad*2)+(tmp->pad*2))))/((float)(thisbox->items[z].height-((thisbox->items[z].pad*2)+(tmp->pad*2))));
+					}
+					else
+					{
+						if((thisbox->items[z].height-tmp->upy)!=0)
+							tmp->yratio = ((float)((thisbox->items[z].height * thisbox->yratio)-tmp->upy))/((float)(thisbox->items[z].height-tmp->upy));
+					}
+
+					nux = *usedx; nuy = *usedy;
+					upx = *usedpadx + (tmp->pad*2); upy = *usedpady + (tmp->pad*2);
+				}
+
+				(*depth)++;
+
+				_resize_box(tmp, depth, x, y, &nux, &nuy, pass, &upx, &upy);
+
+				(*depth)--;
+
+				newx = x - nux;
+				newy = y - nuy;
+
+				tmp->minwidth = thisbox->items[z].width = initialx - newx;
+				tmp->minheight = thisbox->items[z].height = initialy - newy;
+			}
+		}
+
+		if(pass > 1 && *depth > 0)
+		{
+			if(thisbox->type == DW_VERT)
+			{
+				if((thisbox->minwidth-((thisbox->items[z].pad*2)+(thisbox->parentpad*2))) == 0)
+					thisbox->items[z].xratio = 1.0;
+				else
+					thisbox->items[z].xratio = ((float)((thisbox->width * thisbox->parentxratio)-((thisbox->items[z].pad*2)+(thisbox->parentpad*2))))/((float)(thisbox->minwidth-((thisbox->items[z].pad*2)+(thisbox->parentpad*2))));
+			}
+			else
+			{
+				if(thisbox->minwidth-thisbox->upx == 0)
+					thisbox->items[z].xratio = 1.0;
+				else
+					thisbox->items[z].xratio = ((float)((thisbox->width * thisbox->parentxratio)-thisbox->upx))/((float)(thisbox->minwidth-thisbox->upx));
+			}
+
+			if(thisbox->type == DW_HORZ)
+			{
+				if((thisbox->minheight-((thisbox->items[z].pad*2)+(thisbox->parentpad*2))) == 0)
+					thisbox->items[z].yratio = 1.0;
+				else
+					thisbox->items[z].yratio = ((float)((thisbox->height * thisbox->parentyratio)-((thisbox->items[z].pad*2)+(thisbox->parentpad*2))))/((float)(thisbox->minheight-((thisbox->items[z].pad*2)+(thisbox->parentpad*2))));
+			}
+			else
+			{
+				if(thisbox->minheight-thisbox->upy == 0)
+					thisbox->items[z].yratio = 1.0;
+				else
+					thisbox->items[z].yratio = ((float)((thisbox->height * thisbox->parentyratio)-thisbox->upy))/((float)(thisbox->minheight-thisbox->upy));
+			}
+
+			if(thisbox->items[z].type == TYPEBOX)
+			{
+				Box *tmp = _get_window_pointer(thisbox->items[z].hwnd);
+
+				if(tmp)
+				{
+					tmp->parentxratio = thisbox->items[z].xratio;
+					tmp->parentyratio = thisbox->items[z].yratio;
+				}
+			}
+		}
+		else
+		{
+			thisbox->items[z].xratio = thisbox->xratio;
+			thisbox->items[z].yratio = thisbox->yratio;
+		}
+
+		if(thisbox->type == DW_VERT)
+		{
+			if((thisbox->items[z].width + (thisbox->items[z].pad*2)) > uxmax)
+				uxmax = (thisbox->items[z].width + (thisbox->items[z].pad*2));
+			if(thisbox->items[z].hsize != SIZEEXPAND)
+			{
+				if(((thisbox->items[z].pad*2) + thisbox->items[z].width) > upxmax)
+					upxmax = (thisbox->items[z].pad*2) + thisbox->items[z].width;
+			}
+			else
+			{
+				if(thisbox->items[z].pad*2 > upxmax)
+					upxmax = thisbox->items[z].pad*2;
+			}
+		}
+		else
+		{
+			if(thisbox->items[z].width == -1)
+			{
+				/* figure out how much space this item requires */
+				/* thisbox->items[z].width = */
+			}
+			else
+			{
+				(*usedx) += thisbox->items[z].width + (thisbox->items[z].pad*2);
+				if(thisbox->items[z].hsize != SIZEEXPAND)
+					(*usedpadx) += (thisbox->items[z].pad*2) + thisbox->items[z].width;
+				else
+					(*usedpadx) += thisbox->items[z].pad*2;
+			}
+		}
+		if(thisbox->type == DW_HORZ)
+		{
+			if((thisbox->items[z].height + (thisbox->items[z].pad*2)) > uymax)
+				uymax = (thisbox->items[z].height + (thisbox->items[z].pad*2));
+			if(thisbox->items[z].vsize != SIZEEXPAND)
+			{
+				if(((thisbox->items[z].pad*2) + thisbox->items[z].height) > upymax)
+					upymax = (thisbox->items[z].pad*2) + thisbox->items[z].height;
+			}
+			else
+			{
+				if(thisbox->items[z].pad*2 > upymax)
+					upymax = thisbox->items[z].pad*2;
+			}
+		}
+		else
+		{
+			if(thisbox->items[z].height == -1)
+			{
+				/* figure out how much space this item requires */
+				/* thisbox->items[z].height = */
+			}
+			else
+			{
+				(*usedy) += thisbox->items[z].height + (thisbox->items[z].pad*2);
+				if(thisbox->items[z].vsize != SIZEEXPAND)
+					(*usedpady) += (thisbox->items[z].pad*2) + thisbox->items[z].height;
+				else
+					(*usedpady) += thisbox->items[z].pad*2;
+			}
+		}
+	}
+
+	(*usedx) += uxmax;
+	(*usedy) += uymax;
+	(*usedpadx) += upxmax;
+	(*usedpady) += upymax;
+
+	currentx += thisbox->pad;
+	currenty += thisbox->pad;
+
+	/* The second pass is for expansion and actual placement. */
+	if(pass > 1)
+	{
+		/* Any SIZEEXPAND items should be set to uxmax/uymax */
+		for(z=0;z<thisbox->count;z++)
+		{
+			if(thisbox->items[z].hsize == SIZEEXPAND && thisbox->type == DW_VERT)
+				thisbox->items[z].width = uxmax-(thisbox->items[z].pad*2);
+			if(thisbox->items[z].vsize == SIZEEXPAND && thisbox->type == DW_HORZ)
+				thisbox->items[z].height = uymax-(thisbox->items[z].pad*2);
+			/* Run this code segment again to finalize the sized after setting uxmax/uymax values. */
+			if(thisbox->items[z].type == TYPEBOX)
+			{
+				Box *tmp = _get_window_pointer(thisbox->items[z].hwnd);
+
+				if(tmp)
+				{
+					if(*depth > 0)
+					{
+						if(thisbox->type == DW_VERT)
+						{
+							tmp->xratio = ((float)((thisbox->items[z].width * thisbox->xratio)-((thisbox->items[z].pad*2)+(thisbox->pad*2))))/((float)(tmp->minwidth-((thisbox->items[z].pad*2)+(thisbox->pad*2))));
+							tmp->width = thisbox->items[z].width;
+						}
+						if(thisbox->type == DW_HORZ)
+						{
+							tmp->yratio = ((float)((thisbox->items[z].height * thisbox->yratio)-((thisbox->items[z].pad*2)+(thisbox->pad*2))))/((float)(tmp->minheight-((thisbox->items[z].pad*2)+(thisbox->pad*2))));
+							tmp->height = thisbox->items[z].height;
+						}
+					}
+
+					(*depth)++;
+
+					_resize_box(tmp, depth, x, y, &nux, &nuy, 3, &nupx, &nupy);
+
+					(*depth)--;
+
+				}
+			}
+		}
+
+		for(z=0;z<(thisbox->count);z++)
+		{
+			int height = thisbox->items[z].height;
+			int width = thisbox->items[z].width;
+			int pad = thisbox->items[z].pad;
+			HWND handle = thisbox->items[z].hwnd;
+			int vectorx, vectory;
+
+			/* When upxmax != pad*2 then ratios are incorrect. */
+			vectorx = (int)((width*thisbox->items[z].xratio)-width);
+			vectory = (int)((height*thisbox->items[z].yratio)-height);
+
+			if(width > 0 && height > 0)
+			{
+				/* This is a hack to fix rounding of the sizing */
+				if(*depth == 0)
+				{
+					vectorx++;
+					vectory++;
+				}
+
+				/* If this item isn't going to expand... reset the vectors to 0 */
+				if(thisbox->items[z].vsize != SIZEEXPAND)
+					vectory = 0;
+				if(thisbox->items[z].hsize != SIZEEXPAND)
+					vectorx = 0;
+
+#if 0
+				WinSetWindowPos(handle, HWND_TOP, currentx + pad, currenty + pad,
+								width + vectorx, height + vectory, SWP_MOVE | SWP_SIZE | SWP_ZORDER);
+#endif
+
+				if(thisbox->type == DW_HORZ)
+					currentx += width + vectorx + (pad * 2);
+				if(thisbox->type == DW_VERT)
+					currenty += height + vectory + (pad * 2);
+			}
+		}
+	}
+	return 0;
+}
+
+void _do_resize(Box *thisbox, int x, int y)
+{
+	if(x != 0 && y != 0)
+	{
+		if(thisbox)
+		{
+			int usedx = 0, usedy = 0, usedpadx = 0, usedpady = 0, depth = 0;
+
+			_resize_box(thisbox, &depth, x, y, &usedx, &usedy, 1, &usedpadx, &usedpady);
+
+			if(usedx-usedpadx == 0 || usedy-usedpady == 0)
+				return;
+
+			thisbox->xratio = ((float)(x-usedpadx))/((float)(usedx-usedpadx));
+			thisbox->yratio = ((float)(y-usedpady))/((float)(usedy-usedpady));
+
+			usedx = usedy = usedpadx = usedpady = depth = 0;
+
+			_resize_box(thisbox, &depth, x, y, &usedx, &usedy, 2, &usedpadx, &usedpady);
+		}
+	}
+}
+
+int _dw_int_pos(HWND hwnd)
+{
+	int pos = (int)dw_window_get_data(hwnd, "_dw_percent_value");
+	int range = dw_percent_query_range(hwnd);
+	float fpos = (float)pos;
+	float frange = (float)range;
+	float fnew = (fpos/1000.0)*frange;
+	return (int)fnew;
+}
+
+void _dw_int_set(HWND hwnd, int pos)
+{
+	int inew, range = dw_percent_query_range(hwnd);
+	if(range)
+	{
+		float fpos = (float)pos;
+		float frange = (float)range;
+		float fnew = (fpos/frange)*1000.0;
+		inew = (int)fnew;
+		dw_window_set_data(hwnd, "_dw_percent_value", (void *)inew);
+	}
+}
+
+void _changebox(Box *thisbox, int percent, int type)
+{
+	int z;
+
+	for(z=0;z<thisbox->count;z++)
+	{
+		if(thisbox->items[z].type == TYPEBOX)
+		{
+			Box *tmp = WinQueryWindowPtr(thisbox->items[z].hwnd, QWP_USER);
+			_changebox(tmp, percent, type);
+		}
+		else
+		{
+			if(type == DW_HORZ)
+			{
+				if(thisbox->items[z].hsize == SIZEEXPAND)
+					thisbox->items[z].width = (int)(((float)thisbox->items[z].origwidth) * (((float)percent)/((float)100.0)));
+			}
+			else
+			{
+				if(thisbox->items[z].vsize == SIZEEXPAND)
+					thisbox->items[z].height = (int)(((float)thisbox->items[z].origheight) * (((float)percent)/((float)100.0)));
+			}
+		}
+	}
+}
+
+/*
+ * Initializes the Dynamic Windows engine.
+ * Parameters:
+ *           newthread: True if this is the only thread.
+ *                      False if there is already a message loop running.
+ */
+int API dw_init(int newthread, int argc, char *argv[])
+{
+	return 0;
+}
+
+/*
+ * Runs a message loop for Dynamic Windows.
+ */
+void API dw_main(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)
+{
+}
+
+/*
+ * 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);
+}
+
+/*
+ * Allocates and initializes a dialog struct.
+ * Parameters:
+ *           data: User defined data to be passed to functions.
+ */
+DWDialog * API dw_dialog_new(void *data)
+{
+	DWDialog *tmp = malloc(sizeof(DWDialog));
+
+	tmp->eve = dw_event_new();
+	dw_event_reset(tmp->eve);
+	tmp->data = data;
+	tmp->done = FALSE;
+	tmp->result = NULL;
+
+    return tmp;
+}
+
+/*
+ * 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().
+ */
+int API dw_dialog_dismiss(DWDialog *dialog, void *result)
+{
+	dialog->result = result;
+	dw_event_post(dialog->eve);
+	dialog->done = TRUE;
+	return 0;
+}
+
+/*
+ * 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).
+ */
+void * API dw_dialog_wait(DWDialog *dialog)
+{
+	void *tmp;
+
+#if 0
+	while (WinGetMsg(dwhab, &qmsg, 0, 0, 0))
+	{
+		WinDispatchMsg(dwhab, &qmsg);
+		if(dialog->done)
+			break;
+	}
+#endif
+	dw_event_close(&dialog->eve);
+	tmp = dialog->result;
+	free(dialog);
+	return tmp;
+}
+
+
+/*
+ * Displays a Message Box with given text and title..
+ * Parameters:
+ *           title: The title of the message box.
+ *           format: printf style format string.
+ *           ...: Additional variables for use in the format.
+ */
+int API dw_messagebox(char *title, char *format, ...)
+{
+	va_list args;
+	char outbuf[1024];
+
+	va_start(args, format);
+	vsprintf(outbuf, format, args);
+	va_end(args);
+
+#if 0
+	WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, outbuf, title, 0, MB_OK | MB_INFORMATION | MB_MOVEABLE);
+#endif
+
+	return strlen(outbuf);
+}
+
+/*
+ * Displays a Message Box with given text and title..
+ * Parameters:
+ *           title: The title of the message box.
+ *           text: The text to display in the box.
+ * Returns:
+ *           True if YES False of NO.
+ */
+int API dw_yesno(char *title, char *text)
+{
+	return FALSE;
+}
+
+/*
+ * Makes the window topmost.
+ * Parameters:
+ *           handle: The window handle to make topmost.
+ */
+int API dw_window_raise(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * Makes the window bottommost.
+ * Parameters:
+ *           handle: The window handle to make bottommost.
+ */
+int API dw_window_lower(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * Makes the window visible.
+ * Parameters:
+ *           handle: The window handle to make visible.
+ */
+int API dw_window_show(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * Minimizes or Iconifies a top-level window.
+ * Parameters:
+ *           handle: The window handle to minimize.
+ */
+int API dw_window_minimize(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * Makes the window invisible.
+ * Parameters:
+ *           handle: The window handle to make visible.
+ */
+int API dw_window_hide(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * Destroys a window and all of it's children.
+ * Parameters:
+ *           handle: The window handle to destroy.
+ */
+int API dw_window_destroy(HWND handle)
+{
+	return 0;
+}
+
+/* Causes entire window to be invalidated and redrawn.
+ * Parameters:
+ *           handle: Toplevel window handle to be redrawn.
+ */
+void API dw_window_redraw(HWND handle)
+{
+}
+
+/*
+ * 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"
+ */
+int API dw_window_set_font(HWND handle, char *fontname)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+int API dw_window_set_color(HWND handle, ULONG fore, ULONG back)
+{
+	return 0;
+}
+
+/*
+ * Sets the font used by a specified window (widget) handle.
+ * Parameters:
+ *          handle: The window (widget) handle.
+ *          border: Size of the window border in pixels.
+ */
+int API dw_window_set_border(HWND handle, int border)
+{
+	return 0;
+}
+
+/*
+ * Captures the mouse input to this window.
+ * Parameters:
+ *       handle: Handle to receive mouse input.
+ */
+void API dw_window_capture(HWND handle)
+{
+}
+
+/*
+ * Releases previous mouse capture.
+ */
+void API dw_window_release(void)
+{
+}
+
+/*
+ * Tracks this window movement.
+ * Parameters:
+ *       handle: Handle to frame to be tracked.
+ */
+void API dw_window_track(HWND handle)
+{
+}
+
+/*
+ * 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_pointer(HWND handle, int pointertype)
+{
+}
+
+/*
+ * Create a new Window Frame.
+ * Parameters:
+ *       owner: The Owner's window handle or HWND_DESKTOP.
+ *       title: The Window title.
+ *       flStyle: Style flags, see the PM reference.
+ */
+HWND API dw_window_new(HWND hwndOwner, char *title, ULONG flStyle)
+{
+	HWND hwnd = 0;
+
+	return hwnd;
+}
+
+/*
+ * 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.
+ */
+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.
+ */
+HWND API dw_groupbox_new(int type, int pad, char *title)
+{
+	return 0;
+}
+
+/*
+ * Create a new MDI Frame to be packed.
+ * Parameters:
+ *       id: An ID to be used with dw_window_from_id or 0L.
+ */
+HWND API dw_mdi_new(unsigned long id)
+{
+	return 0;
+}
+
+/*
+ * Create a bitmap object to be packed.
+ * Parameters:
+ *       id: An ID to be used with dw_window_from_id() or 0L.
+ */
+HWND API dw_bitmap_new(ULONG id)
+{
+	return 0;
+}
+
+/*
+ * Create a notebook object to be packed.
+ * Parameters:
+ *       id: An ID to be used for getting the resource from the
+ *           resource file.
+ */
+HWND API dw_notebook_new(ULONG id, int top)
+{
+	return 0;
+}
+
+/*
+ * Create a menu object to be popped up.
+ * Parameters:
+ *       id: An ID to be used for getting the resource from the
+ *           resource file.
+ */
+HMENUI API dw_menu_new(ULONG id)
+{
+	return 0;
+}
+
+/*
+ * Create a menubar on a window.
+ * Parameters:
+ *       location: Handle of a window frame to be attached to.
+ */
+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)
+{
+}
+
+/*
+ * 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.
+ */
+HWND API dw_menu_append_item(HMENUI menux, char *title, ULONG id, ULONG flags, int end, int check, HMENUI submenu)
+{
+	return 0;
+}
+
+/*
+ * Sets the state of a menu item check.
+ * 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 id, int check)
+{
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * Returns the current X and Y coordinates of the mouse pointer.
+ * Parameters:
+ *       x: Pointer to variable to store X coordinate.
+ *       y: Pointer to variable to store Y coordinate.
+ */
+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 container object to be packed.
+ * Parameters:
+ *       id: An ID to be used for getting the resource from the
+ *           resource file.
+ */
+HWND API dw_container_new(ULONG id, int multi)
+{
+	return 0;
+}
+
+/*
+ * Create a tree object to be packed.
+ * Parameters:
+ *       id: An ID to be used for getting the resource from the
+ *           resource file.
+ */
+HWND API dw_tree_new(ULONG id)
+{
+	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.
+ */
+HWND API dw_text_new(char *text, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+HWND API dw_status_text_new(char *text, ULONG id)
+{
+	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.
+ */
+HWND API dw_mle_new(ULONG id)
+{
+	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.
+ */
+HWND API dw_entryfield_new(char *text, ULONG id)
+{
+
+	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.
+ */
+HWND API dw_entryfield_password_new(char *text, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+HWND API dw_combobox_new(char *text, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+HWND API dw_button_new(char *text, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+HWND API dw_bitmapbutton_new(char *text, ULONG id)
+{
+	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)
+ */
+HWND dw_bitmapbutton_new_from_file(char *text, unsigned long id, char *filename)
+{
+	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.
+ */
+HWND API dw_spinbutton_new(char *text, ULONG id)
+{
+	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.
+ */
+HWND API dw_radiobutton_new(char *text, ULONG id)
+{
+	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.
+ */
+HWND API dw_slider_new(int vertical, int increments, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * Create a new scrollbar window (widget) to be packed.
+ * Parameters:
+ *       vertical: TRUE or FALSE if scrollbar is vertical.
+ *       increments: Number of increments available.
+ *       id: An ID to be used with dw_window_from_id() or 0L.
+ */
+HWND API dw_scrollbar_new(int vertical, int increments, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * Create a new percent bar window (widget) to be packed.
+ * Parameters:
+ *       id: An ID to be used with dw_window_from_id() or 0L.
+ */
+HWND API dw_percent_new(ULONG id)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+HWND API dw_checkbox_new(char *text, ULONG id)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ */
+HWND API dw_listbox_new(ULONG id, int multi)
+{
+	return 0;
+}
+
+/*
+ * Sets the icon used for a given window.
+ * Parameters:
+ *       handle: Handle to the window.
+ *       id: An ID to be used to specify the icon.
+ */
+void API dw_window_set_icon(HWND handle, ULONG id)
+{
+}
+
+/*
+ * 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 id, char *filename)
+{
+}
+
+/*
+ * 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, char *text)
+{
+}
+
+/*
+ * Gets the text used for a given window.
+ * Parameters:
+ *       handle: Handle to the window.
+ * Returns:
+ *       text: The text associsated with a given window.
+ */
+char * API dw_window_get_text(HWND handle)
+{
+	return NULL;
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * Gets the child window handle with specified ID.
+ * Parameters:
+ *       handle: Handle to the parent window.
+ *       id: Integer ID of the child.
+ */
+HWND API dw_window_from_id(HWND handle, int id)
+{
+	return 0;
+}
+
+/*
+ * 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 be back.
+ *       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)
+{
+}
+
+/*
+ * 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_usize(HWND handle, 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(void)
+{
+	return 0;
+}
+
+
+/*
+ * 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, ULONG x, ULONG 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, ULONG x, ULONG 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.
+ *          y: Y location from the bottom left.
+ *          width: Width of the widget.
+ *          height: Height of the widget.
+ */
+void API dw_window_get_pos_size(HWND handle, ULONG *x, ULONG *y, ULONG *width, ULONG *height)
+{
+}
+
+/*
+ * Sets the style 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_style(HWND handle, ULONG style, ULONG mask)
+{
+}
+
+/*
+ * 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.
+ */
+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.
+ */
+unsigned long API dw_notebook_page_query(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * Sets the currently visibale 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, 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, 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)
+{
+}
+
+/*
+ * 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, char *text)
+{
+}
+
+/*
+ * 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 cleared.
+ */
+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_query_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, char *buffer)
+{
+}
+
+/*
+ * Returns the index to the item in the list currently selected.
+ * Parameters:
+ *          handle: Handle to the listbox to be queried.
+ */
+unsigned int API dw_listbox_selected(HWND handle)
+{
+    return 0;
+}
+
+/*
+ * 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.
+ */
+int API dw_listbox_selected_multi(HWND handle, int where)
+{
+	return -1;
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * 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.
+ */
+unsigned int API dw_mle_import(HWND handle, 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_query(HWND handle, unsigned long *bytes, unsigned long *lines)
+{
+}
+
+/*
+ * 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(HWND handle, int point)
+{
+}
+
+/*
+ * 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.
+ */
+int API dw_mle_search(HWND handle, char *text, int point, unsigned long flags)
+{
+	return 0;
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * Returns the range of the percent bar.
+ * Parameters:
+ *          handle: Handle to the percent bar to be queried.
+ */
+unsigned int API dw_percent_query_range(HWND handle)
+{
+	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)
+{
+}
+
+/*
+ * Returns the position of the slider.
+ * Parameters:
+ *          handle: Handle to the slider to be queried.
+ */
+unsigned int API dw_slider_query_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)
+{
+}
+
+/*
+ * Returns the position of the scrollbar.
+ * Parameters:
+ *          handle: Handle to the scrollbar to be queried.
+ */
+unsigned int API dw_scrollbar_query_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)
+{
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * 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)
+{
+}
+
+
+/*
+ * Returns the current value of the spinbutton.
+ * Parameters:
+ *          handle: Handle to the spinbutton to be queried.
+ */
+long API dw_spinbutton_query(HWND handle)
+{
+    return 0;
+}
+
+/*
+ * Returns the state of the checkbox.
+ * Parameters:
+ *          handle: Handle to the checkbox to be queried.
+ */
+int API dw_checkbox_query(HWND handle)
+{
+	return 0;
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * 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.
+ */
+HTREEITEM API dw_tree_insert_after(HWND handle, HTREEITEM item, char *title, unsigned long 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.
+ */
+HTREEITEM API dw_tree_insert(HWND handle, char *title, unsigned long icon, HTREEITEM parent, void *itemdata)
+{
+	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_set(HWND handle, HTREEITEM item, char *title, unsigned long 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_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.
+ */
+void * API dw_tree_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_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_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_delete(HWND handle, HTREEITEM item)
+{
+}
+
+/*
+ * 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)
+ */
+int API dw_container_setup(HWND handle, unsigned long *flags, char **titles, int count, int separator)
+{
+	return TRUE;
+}
+
+/*
+ * 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).
+ */
+int API dw_filesystem_setup(HWND handle, unsigned long *flags, char **titles, int count)
+{
+	char **newtitles = malloc(sizeof(char *) * (count + 2));
+	unsigned long *newflags = malloc(sizeof(unsigned long) * (count + 2));
+
+	newtitles[0] = "Icon";
+	newtitles[1] = "Filename";
+
+	newflags[0] = DW_CFA_BITMAPORICON | DW_CFA_CENTER | DW_CFA_HORZSEPARATOR | DW_CFA_SEPARATOR;
+	newflags[1] = DW_CFA_STRING | DW_CFA_LEFT | DW_CFA_HORZSEPARATOR;
+
+	memcpy(&newtitles[2], titles, sizeof(char *) * count);
+	memcpy(&newflags[2], flags, sizeof(unsigned long) * count);
+
+	dw_container_setup(handle, newflags, newtitles, count + 2, count ? 2 : 0);
+
+	free(newtitles);
+	free(newflags);
+	return TRUE;
+}
+
+/*
+ * 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.
+ */
+unsigned long API dw_icon_load(unsigned long module, unsigned long id)
+{
+	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)
+ */
+unsigned long API dw_icon_load_from_file(char *filename)
+{
+	return 0;
+}
+
+/*
+ * Frees a loaded resource in OS/2 and Windows.
+ * Parameters:
+ *          handle: Handle to icon returned by dw_icon_load().
+ */
+void API dw_icon_free(unsigned long handle)
+{
+}
+
+/*
+ * Allocates memory used to populate a container.
+ * Parameters:
+ *          handle: Handle to the container window (widget).
+ *          rowcount: The number of items to be populated.
+ */
+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)
+{
+}
+
+/*
+ * 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, char *filename, unsigned long icon)
+{
+	dw_container_set_item(handle, pointer, 0, row, (void *)&icon);
+	dw_container_set_item(handle, pointer, 1, row, (void *)&filename);
+}
+
+/*
+ * 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)
+{
+	dw_container_set_item(handle, pointer, column + 2, row, data);
+}
+
+/*
+ * 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, 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.
+ */
+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.
+ */
+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, char *text)
+{
+}
+
+/*
+ * 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, char *text)
+{
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * 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 id)
+{
+	return 0;
+}
+
+/* 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)
+{
+}
+
+/* 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, 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(HWND handle, HPIXMAP pixmap, char *text, int *width, int *height)
+{
+}
+
+/* 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)
+ *       fill: Fill box TRUE or FALSE.
+ *       x: X coordinate.
+ *       y: Y coordinate.
+ *       width: Width of rectangle.
+ *       height: Height of rectangle.
+ */
+void API dw_draw_rect(HWND handle, HPIXMAP pixmap, int fill, int x, int y, int width, int height)
+{
+}
+
+/* Call this after drawing to the screen to make sure
+ * anything you have drawn is visible.
+ */
+void API dw_flush(void)
+{
+}
+
+/*
+ * 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, char *filename)
+{
+	return 0;
+}
+
+/*
+ * 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 id)
+{
+	return 0;
+}
+
+/*
+ * 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)
+{
+}
+
+/*
+ * Emits a beep.
+ * Parameters:
+ *       freq: Frequency.
+ *       dur: Duration.
+ */
+void API dw_beep(int freq, int dur)
+{
+}
+
+/* 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.
+ */
+int API dw_module_load(char *name, HMOD *handle)
+{
+	return 0;
+}
+
+/* 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.
+ */
+int API dw_module_symbol(HMOD handle, char *name, void**func)
+{
+	return 0;
+}
+
+/* Frees the shared library previously opened.
+ * Parameters:
+ *         handle: Module handle returned by dw_module_load()
+ */
+int API dw_module_close(HMOD handle)
+{
+	return 0;
+}
+
+/*
+ * Returns the handle to an unnamed mutex semaphore.
+ */
+HMTX API dw_mutex_new(void)
+{
+	return 0;
+}
+
+/*
+ * 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.
+ * If we are in a callback we must keep the message loop running
+ * while blocking.
+ * Parameters:
+ *       mutex: The handle to the mutex returned by dw_mutex_new().
+ */
+void API dw_mutex_lock(HMTX mutex)
+{
+}
+
+/*
+ * 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.
+ */
+HEV API dw_event_new(void)
+{
+	return 0;
+}
+
+/*
+ * Resets a semaphore created by dw_event_new().
+ * Parameters:
+ *       eve: The handle to the event returned by dw_event_new().
+ */
+int API dw_event_reset(HEV eve)
+{
+	return TRUE;
+}
+
+/*
+ * 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().
+ */
+int API dw_event_post(HEV eve)
+{
+	return TRUE;
+}
+
+
+/*
+ * 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().
+ */
+int API dw_event_wait(HEV eve, unsigned long timeout)
+{
+	return 0;
+}
+
+/*
+ * Closes a semaphore created by dw_event_new().
+ * Parameters:
+ *       eve: The handle to the event returned by dw_event_new().
+ */
+int API dw_event_close(HEV *eve)
+{
+	return TRUE;
+}
+
+/*
+ * 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).
+ */
+DWTID API dw_thread_new(void *func, void *data, int stack)
+{
+}
+
+/*
+ * 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 0;
+}
+
+/*
+ * 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);
+}
+
+/*
+ * 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 id)
+{
+	return 0;
+}
+
+/*
+ * Sets the position of a splitbar (pecentage).
+ * Parameters:
+ *       handle: The handle to the splitbar returned by dw_splitbar_new().
+ */
+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().
+ */
+float API dw_splitbar_get(HWND handle)
+	return 0.0;
+}
+
+/*
+ * 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 be back.
+ *       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)
+{
+}
+
+/*
+ * Sets the default focus item for a window/dialog.
+ * Parameters:
+ *         window: Toplevel window or dialog.
+ *         defaultitem: Handle to the dialog item to be default.
+ */
+void API dw_window_default(HWND window, 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 window, HWND next)
+{
+}
+
+/*
+ * Returns some information about the current operating environment.
+ * Parameters:
+ *       env: Pointer to a DWEnv struct.
+ */
+void API dw_environment_query(DWEnv *env)
+{
+	ULONG Build;
+
+	if(!env)
+		return;
+
+	strcpy(env->osName,"MacOS");
+	env->MajorVersion = 10;
+	env->MinorVersion = 0;
+
+	env->MinorBuild = 0;
+	env->MajorBuild = 0;
+
+	strcpy(env->buildDate, __DATE__);
+	strcpy(env->buildTime, __TIME__);
+	env->DWMajorVersion = DW_MAJOR_VERSION;
+	env->DWMinorVersion = DW_MINOR_VERSION;
+	env->DWSubVersion = DW_SUB_VERSION;
+}
+
+/*
+ * 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(char *title, char *defpath, char *ext, int flags)
+{
+	return NULL;
+}
+
+/*
+ * 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:
+ *       -1 on error.
+ */
+int API dw_exec(char *program, int type, char **params)
+{
+	return -1;
+}
+
+/*
+ * Loads a web browser pointed at the given URL.
+ * Parameters:
+ *       url: Uniform resource locator.
+ */
+int API dw_browse(char *url)
+{
+	return -1;
+}
+
+/*
+ * Returns a pointer to a static buffer which containes the
+ * current user directory.  Or the root directory (C:\ on
+ * OS/2 and Windows).
+ */
+char * API dw_user_dir(void)
+{
+	static char _user_dir[1024] = "";
+
+	if(!_user_dir[0])
+	{
+		char *home = getenv("HOME");
+
+		if(home)
+			strcpy(_user_dir, home);
+		else
+			strcpy(_user_dir, "/");
+	}
+	return _user_dir;
+}
+
+/*
+ * Call a function from the window (widget)'s context.
+ * 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)
+{
+}
+
+/* Functions for managing the user data lists that are associated with
+ * a given window handle.  Used in dw_window_set_data() and
+ * dw_window_get_data().
+ */
+UserData *_find_userdata(UserData **root, char *varname)
+{
+	UserData *tmp = *root;
+
+	while(tmp)
+	{
+		if(stricmp(tmp->varname, varname) == 0)
+			return tmp;
+		tmp = tmp->next;
+	}
+	return NULL;
+}
+
+int _new_userdata(UserData **root, char *varname, void *data)
+{
+	UserData *new = _find_userdata(root, varname);
+
+	if(new)
+	{
+		new->data = data;
+		return TRUE;
+	}
+	else
+	{
+		new = malloc(sizeof(UserData));
+		if(new)
+		{
+			new->varname = strdup(varname);
+			new->data = data;
+
+			new->next = NULL;
+
+			if (!*root)
+				*root = new;
+			else
+			{
+				UserData *prev = NULL, *tmp = *root;
+				while(tmp)
+				{
+					prev = tmp;
+					tmp = tmp->next;
+				}
+				if(prev)
+					prev->next = new;
+				else
+					*root = new;
+			}
+			return TRUE;
+		}
+	}
+	return FALSE;
+}
+
+int _remove_userdata(UserData **root, char *varname, int all)
+{
+	UserData *prev = NULL, *tmp = *root;
+
+	while(tmp)
+	{
+		if(all || stricmp(tmp->varname, varname) == 0)
+		{
+			if(!prev)
+			{
+				*root = tmp->next;
+				free(tmp->varname);
+				free(tmp);
+				if(!all)
+					return 0;
+				tmp = *root;
+			}
+			else
+			{
+				/* If all is true we should
+				 * never get here.
+				 */
+				prev->next = tmp->next;
+				free(tmp->varname);
+				free(tmp);
+				return 0;
+			}
+		}
+		else
+		{
+			prev = tmp;
+			tmp = tmp->next;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Add a named user data item to a window handle.
+ * Parameters:
+ *       window: Window handle of signal to be called back.
+ *       dataname: A string pointer identifying which signal to be hooked.
+ *       data: User data to be passed to the handler function.
+ */
+void API dw_window_set_data(HWND window, char *dataname, void *data)
+{
+	WindowData *blah = (WindowData *)_get_window_pointer(window);
+
+	if(!blah)
+	{
+		if(!dataname)
+			return;
+
+		blah = calloc(1, sizeof(WindowData));
+		WinSetWindowPtr(window, QWP_USER, blah);
+	}
+
+	if(data)
+		_new_userdata(&(blah->root), dataname, data);
+	else
+	{
+		if(dataname)
+			_remove_userdata(&(blah->root), dataname, FALSE);
+		else
+			_remove_userdata(&(blah->root), NULL, TRUE);
+	}
+}
+
+/*
+ * Gets a named user data item to a window handle.
+ * Parameters:
+ *       window: Window handle of signal to be called back.
+ *       dataname: A string pointer identifying which signal to be hooked.
+ *       data: User data to be passed to the handler function.
+ */
+void *dw_window_get_data(HWND window, char *dataname)
+{
+	WindowData *blah = (WindowData *)_get_window_pointer(window);
+
+	if(blah && blah->root && dataname)
+	{
+		UserData *ud = _find_userdata(&(blah->root), dataname);
+		if(ud)
+			return ud->data;
+	}
+	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 id)
+{
+	SignalHandler *prev = NULL, *tmp = Root;
+
+	/* 0 is an invalid timer ID */
+	if(!id)
+		return;
+
+	while(tmp)
+	{
+		if(tmp->id == id)
+		{
+			if(prev)
+			{
+				prev->next = tmp->next;
+				free(tmp);
+				tmp = prev->next;
+			}
+			else
+			{
+				Root = tmp->next;
+				free(tmp);
+				tmp = Root;
+			}
+		}
+		else
+		{
+			prev = tmp;
+			tmp = tmp->next;
+		}
+	}
+}
+
+/*
+ * 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, char *signame, void *sigfunc, void *data)
+{
+	ULONG message = 0L;
+
+	if(window && signame && sigfunc)
+	{
+		if((message = _findsigmessage(signame)) != 0)
+			_new_signal(message, window, 0, sigfunc, data);
+	}
+}
+
+/*
+ * Removes callbacks for a given window with given name.
+ * Parameters:
+ *       window: Window handle of callback to be removed.
+ */
+void API dw_signal_disconnect_by_name(HWND window, char *signame)
+{
+	SignalHandler *prev = NULL, *tmp = Root;
+	ULONG message;
+
+	if(!window || !signame || (message = _findsigmessage(signame)) == 0)
+		return;
+
+	while(tmp)
+	{
+		if(tmp->window == window && tmp->message == message)
+		{
+			if(prev)
+			{
+				prev->next = tmp->next;
+				free(tmp);
+				tmp = prev->next;
+			}
+			else
+			{
+				Root = tmp->next;
+				free(tmp);
+				tmp = Root;
+			}
+		}
+		else
+		{
+			prev = tmp;
+			tmp = tmp->next;
+		}
+	}
+}
+
+/*
+ * 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)
+{
+	SignalHandler *prev = NULL, *tmp = Root;
+
+	while(tmp)
+	{
+		if(tmp->window == window)
+		{
+			if(prev)
+			{
+				prev->next = tmp->next;
+				free(tmp);
+				tmp = prev->next;
+			}
+			else
+			{
+				Root = tmp->next;
+				free(tmp);
+				tmp = Root;
+			}
+		}
+		else
+		{
+			prev = tmp;
+			tmp = tmp->next;
+		}
+	}
+}
+
+/*
+ * 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)
+{
+	SignalHandler *prev = NULL, *tmp = Root;
+
+	while(tmp)
+	{
+		if(tmp->window == window && tmp->data == data)
+		{
+			if(prev)
+			{
+				prev->next = tmp->next;
+				free(tmp);
+				tmp = prev->next;
+			}
+			else
+			{
+				Root = tmp->next;
+				free(tmp);
+				tmp = Root;
+			}
+		}
+		else
+		{
+			prev = tmp;
+			tmp = tmp->next;
+		}
+	}
+}
+
+