dwindows: os2/dw.c comparison

Added module support.

comparison

equal deleted inserted replaced

-:63258b34e70d
+:a07dd2e819f3
 void dw_beep(int freq, int dur)
 {
 	DosBeep(freq, 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 dw_module_load(char *name, HMOD *handle)
+{
+	char objnamebuf[300] = "";
+	return DosLoadModule(objnamebuf, sizeof(objnamebuf), name, handle);
+}
+/* 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 dw_module_symbol(HMOD handle, char *name, void**func)
+{
+	return DosQueryProcAddr(handle, 0, name, (PFN*)func);
+}
+/* Frees the shared library previously opened.
+* Parameters:
+*         handle: Module handle returned by dw_module_load()
+*/
+int dw_module_close(HMOD handle)
+{
+	DosFreeModule(handle);
+}
 /*
 * Returns the handle to an unnamed mutex semaphore.
 */
 HMTX dw_mutex_new(void)
 {

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