SDL_dibevents.c revision 46be48730333120a7b939116cef075e61c12c703 
1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2006 Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24#define WIN32_LEAN_AND_MEAN
25#include <windows.h>
26
27#include "SDL_main.h"
28#include "SDL_events.h"
29#include "SDL_syswm.h"
30#include "../../events/SDL_sysevents.h"
31#include "../../events/SDL_events_c.h"
32#include "../wincommon/SDL_lowvideo.h"
33#include "SDL_dibvideo.h"
34#include "SDL_vkeys.h"
35
36#ifndef WM_APP
37#define WM_APP	0x8000
38#endif
39
40#ifdef _WIN32_WCE
41#define NO_GETKEYBOARDSTATE
42#endif
43
44/* The translation table from a Microsoft VK keysym to a SDL keysym */
45static SDLKey VK_keymap[SDLK_LAST];
46static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed);
47
48/* Masks for processing the windows KEYDOWN and KEYUP messages */
49#define REPEATED_KEYMASK	(1<<30)
50#define EXTENDED_KEYMASK	(1<<24)
51
52/* DJM: If the user setup the window for us, we want to save his window proc,
53   and give him a chance to handle some messages. */
54#ifdef STRICT
55#define WNDPROCTYPE	WNDPROC
56#else
57#define WNDPROCTYPE	FARPROC
58#endif
59static WNDPROCTYPE userWindowProc = NULL;
60
61
62#ifdef _WIN32_WCE
63
64WPARAM rotateKey(WPARAM key,SDL_ScreenOrientation direction)
65{
66	if (direction != SDL_ORIENTATION_LEFT)
67		return key;
68
69	switch (key) {
70		case 0x26: /* up */
71			return 0x27;
72		case 0x27: /* right */
73			return 0x28;
74		case 0x28: /* down */
75			return 0x25;
76		case 0x25: /* left */
77			return 0x26;
78	}
79
80	return key;
81}
82
83#endif
84
85
86/* The main Win32 event handler */
87LRESULT DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
88{
89	extern int posted;
90
91	switch (msg) {
92		case WM_SYSKEYDOWN:
93		case WM_KEYDOWN: {
94			SDL_keysym keysym;
95
96#ifdef _WIN32_WCE
97			// Drop GAPI artefacts
98			if (wParam == 0x84 || wParam == 0x5B)
99				return 0;
100
101			// Rotate key if necessary
102			if (this->hidden->orientation != SDL_ORIENTATION_UP)
103				wParam = rotateKey(wParam, this->hidden->orientation);
104#endif
105			/* Ignore repeated keys */
106			if ( lParam&REPEATED_KEYMASK ) {
107				return(0);
108			}
109			switch (wParam) {
110				case VK_CONTROL:
111					if ( lParam&EXTENDED_KEYMASK )
112						wParam = VK_RCONTROL;
113					else
114						wParam = VK_LCONTROL;
115					break;
116				case VK_SHIFT:
117					/* EXTENDED trick doesn't work here */
118					{
119					Uint8 *state = SDL_GetKeyState(NULL);
120					if (state[SDLK_LSHIFT] == SDL_RELEASED && (GetKeyState(VK_LSHIFT) & 0x8000)) {
121						wParam = VK_LSHIFT;
122					} else if (state[SDLK_RSHIFT] == SDL_RELEASED && (GetKeyState(VK_RSHIFT) & 0x8000)) {
123						wParam = VK_RSHIFT;
124					} else {
125						/* Win9x */
126						int sc = HIWORD(lParam) & 0xFF;
127
128						if (sc == 0x2A)
129							wParam = VK_LSHIFT;
130						else
131						if (sc == 0x36)
132							wParam = VK_RSHIFT;
133						else
134							wParam = VK_LSHIFT;
135					}
136					}
137					break;
138				case VK_MENU:
139					if ( lParam&EXTENDED_KEYMASK )
140						wParam = VK_RMENU;
141					else
142						wParam = VK_LMENU;
143					break;
144			}
145#ifdef NO_GETKEYBOARDSTATE
146			/* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */
147			if ( SDL_TranslateUNICODE ) {
148				MSG m;
149
150				m.hwnd = hwnd;
151				m.message = msg;
152				m.wParam = wParam;
153				m.lParam = lParam;
154				m.time = 0;
155				if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) {
156					GetMessage(&m, hwnd, 0, WM_USER);
157			    		wParam = m.wParam;
158				}
159			}
160#endif /* NO_GETKEYBOARDSTATE */
161			posted = SDL_PrivateKeyboard(SDL_PRESSED,
162				TranslateKey(wParam,HIWORD(lParam),&keysym,1));
163		}
164		return(0);
165
166		case WM_SYSKEYUP:
167		case WM_KEYUP: {
168			SDL_keysym keysym;
169
170#ifdef _WIN32_WCE
171			// Drop GAPI artifacts
172			if (wParam == 0x84 || wParam == 0x5B)
173				return 0;
174
175			// Rotate key if necessary
176			if (this->hidden->orientation != SDL_ORIENTATION_UP)
177				wParam = rotateKey(wParam, this->hidden->orientation);
178#endif
179
180			switch (wParam) {
181				case VK_CONTROL:
182					if ( lParam&EXTENDED_KEYMASK )
183						wParam = VK_RCONTROL;
184					else
185						wParam = VK_LCONTROL;
186					break;
187				case VK_SHIFT:
188					/* EXTENDED trick doesn't work here */
189					{
190					Uint8 *state = SDL_GetKeyState(NULL);
191					if (state[SDLK_LSHIFT] == SDL_PRESSED && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
192						wParam = VK_LSHIFT;
193					} else if (state[SDLK_RSHIFT] == SDL_PRESSED && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
194						wParam = VK_RSHIFT;
195					} else {
196						/* Win9x */
197						int sc = HIWORD(lParam) & 0xFF;
198
199						if (sc == 0x2A)
200							wParam = VK_LSHIFT;
201						else
202						if (sc == 0x36)
203							wParam = VK_RSHIFT;
204						else
205							wParam = VK_LSHIFT;
206					}
207					}
208					break;
209				case VK_MENU:
210					if ( lParam&EXTENDED_KEYMASK )
211						wParam = VK_RMENU;
212					else
213						wParam = VK_LMENU;
214					break;
215			}
216			/* Windows only reports keyup for print screen */
217			if ( wParam == VK_SNAPSHOT && SDL_GetKeyState(NULL)[SDLK_PRINT] == SDL_RELEASED ) {
218				posted = SDL_PrivateKeyboard(SDL_PRESSED,
219					TranslateKey(wParam,HIWORD(lParam),&keysym,1));
220			}
221			posted = SDL_PrivateKeyboard(SDL_RELEASED,
222				TranslateKey(wParam,HIWORD(lParam),&keysym,0));
223		}
224		return(0);
225
226#if defined(SC_SCREENSAVE) && defined(SC_MONITORPOWER)
227		case WM_SYSCOMMAND: {
228			const DWORD val = (DWORD) (wParam & 0xFFF0);
229			if ((val == SC_SCREENSAVE) || (val == SC_MONITORPOWER)) {
230				if (!this->hidden->allow_screensaver) {
231					/* Note that this doesn't stop anything on Vista
232					   if the screensaver has a password. */
233					return(0);
234				}
235			}
236		}
237		/* Fall through to default processing */
238#endif /* SC_SCREENSAVE && SC_MONITORPOWER */
239
240		default: {
241			/* Only post the event if we're watching for it */
242			if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
243			        SDL_SysWMmsg wmmsg;
244
245				SDL_VERSION(&wmmsg.version);
246				wmmsg.hwnd = hwnd;
247				wmmsg.msg = msg;
248				wmmsg.wParam = wParam;
249				wmmsg.lParam = lParam;
250				posted = SDL_PrivateSysWMEvent(&wmmsg);
251
252			/* DJM: If the user isn't watching for private
253				messages in her SDL event loop, then pass it
254				along to any win32 specific window proc.
255			 */
256			} else if (userWindowProc) {
257				return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam);
258			}
259		}
260		break;
261	}
262	return(DefWindowProc(hwnd, msg, wParam, lParam));
263}
264
265void DIB_PumpEvents(_THIS)
266{
267	MSG msg;
268
269	while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
270		if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
271			DispatchMessage(&msg);
272		}
273	}
274}
275
276static HKL hLayoutUS = NULL;
277
278void DIB_InitOSKeymap(_THIS)
279{
280	int	i;
281#ifndef _WIN32_WCE
282	char	current_layout[KL_NAMELENGTH];
283
284	GetKeyboardLayoutName(current_layout);
285	//printf("Initial Keyboard Layout Name: '%s'\n", current_layout);
286
287	hLayoutUS = LoadKeyboardLayout("00000409", KLF_NOTELLSHELL);
288
289	if (!hLayoutUS) {
290		//printf("Failed to load US keyboard layout. Using current.\n");
291		hLayoutUS = GetKeyboardLayout(0);
292	}
293	LoadKeyboardLayout(current_layout, KLF_ACTIVATE);
294#else
295#if _WIN32_WCE >=420
296	TCHAR	current_layout[KL_NAMELENGTH];
297
298	GetKeyboardLayoutName(current_layout);
299	//printf("Initial Keyboard Layout Name: '%s'\n", current_layout);
300
301	hLayoutUS = LoadKeyboardLayout(L"00000409", 0);
302
303	if (!hLayoutUS) {
304		//printf("Failed to load US keyboard layout. Using current.\n");
305		hLayoutUS = GetKeyboardLayout(0);
306	}
307	LoadKeyboardLayout(current_layout, 0);
308#endif // _WIN32_WCE >=420
309#endif
310	/* Map the VK keysyms */
311	for ( i=0; i<SDL_arraysize(VK_keymap); ++i )
312		VK_keymap[i] = SDLK_UNKNOWN;
313
314	VK_keymap[VK_BACK] = SDLK_BACKSPACE;
315	VK_keymap[VK_TAB] = SDLK_TAB;
316	VK_keymap[VK_CLEAR] = SDLK_CLEAR;
317	VK_keymap[VK_RETURN] = SDLK_RETURN;
318	VK_keymap[VK_PAUSE] = SDLK_PAUSE;
319	VK_keymap[VK_ESCAPE] = SDLK_ESCAPE;
320	VK_keymap[VK_SPACE] = SDLK_SPACE;
321	VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE;
322	VK_keymap[VK_COMMA] = SDLK_COMMA;
323	VK_keymap[VK_MINUS] = SDLK_MINUS;
324	VK_keymap[VK_PERIOD] = SDLK_PERIOD;
325	VK_keymap[VK_SLASH] = SDLK_SLASH;
326	VK_keymap[VK_0] = SDLK_0;
327	VK_keymap[VK_1] = SDLK_1;
328	VK_keymap[VK_2] = SDLK_2;
329	VK_keymap[VK_3] = SDLK_3;
330	VK_keymap[VK_4] = SDLK_4;
331	VK_keymap[VK_5] = SDLK_5;
332	VK_keymap[VK_6] = SDLK_6;
333	VK_keymap[VK_7] = SDLK_7;
334	VK_keymap[VK_8] = SDLK_8;
335	VK_keymap[VK_9] = SDLK_9;
336	VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON;
337	VK_keymap[VK_EQUALS] = SDLK_EQUALS;
338	VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET;
339	VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH;
340	VK_keymap[VK_OEM_102] = SDLK_LESS;
341	VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET;
342	VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE;
343	VK_keymap[VK_BACKTICK] = SDLK_BACKQUOTE;
344	VK_keymap[VK_A] = SDLK_a;
345	VK_keymap[VK_B] = SDLK_b;
346	VK_keymap[VK_C] = SDLK_c;
347	VK_keymap[VK_D] = SDLK_d;
348	VK_keymap[VK_E] = SDLK_e;
349	VK_keymap[VK_F] = SDLK_f;
350	VK_keymap[VK_G] = SDLK_g;
351	VK_keymap[VK_H] = SDLK_h;
352	VK_keymap[VK_I] = SDLK_i;
353	VK_keymap[VK_J] = SDLK_j;
354	VK_keymap[VK_K] = SDLK_k;
355	VK_keymap[VK_L] = SDLK_l;
356	VK_keymap[VK_M] = SDLK_m;
357	VK_keymap[VK_N] = SDLK_n;
358	VK_keymap[VK_O] = SDLK_o;
359	VK_keymap[VK_P] = SDLK_p;
360	VK_keymap[VK_Q] = SDLK_q;
361	VK_keymap[VK_R] = SDLK_r;
362	VK_keymap[VK_S] = SDLK_s;
363	VK_keymap[VK_T] = SDLK_t;
364	VK_keymap[VK_U] = SDLK_u;
365	VK_keymap[VK_V] = SDLK_v;
366	VK_keymap[VK_W] = SDLK_w;
367	VK_keymap[VK_X] = SDLK_x;
368	VK_keymap[VK_Y] = SDLK_y;
369	VK_keymap[VK_Z] = SDLK_z;
370	VK_keymap[VK_DELETE] = SDLK_DELETE;
371
372	VK_keymap[VK_NUMPAD0] = SDLK_KP0;
373	VK_keymap[VK_NUMPAD1] = SDLK_KP1;
374	VK_keymap[VK_NUMPAD2] = SDLK_KP2;
375	VK_keymap[VK_NUMPAD3] = SDLK_KP3;
376	VK_keymap[VK_NUMPAD4] = SDLK_KP4;
377	VK_keymap[VK_NUMPAD5] = SDLK_KP5;
378	VK_keymap[VK_NUMPAD6] = SDLK_KP6;
379	VK_keymap[VK_NUMPAD7] = SDLK_KP7;
380	VK_keymap[VK_NUMPAD8] = SDLK_KP8;
381	VK_keymap[VK_NUMPAD9] = SDLK_KP9;
382	VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD;
383	VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE;
384	VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY;
385	VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS;
386	VK_keymap[VK_ADD] = SDLK_KP_PLUS;
387
388	VK_keymap[VK_UP] = SDLK_UP;
389	VK_keymap[VK_DOWN] = SDLK_DOWN;
390	VK_keymap[VK_RIGHT] = SDLK_RIGHT;
391	VK_keymap[VK_LEFT] = SDLK_LEFT;
392	VK_keymap[VK_INSERT] = SDLK_INSERT;
393	VK_keymap[VK_HOME] = SDLK_HOME;
394	VK_keymap[VK_END] = SDLK_END;
395	VK_keymap[VK_PRIOR] = SDLK_PAGEUP;
396	VK_keymap[VK_NEXT] = SDLK_PAGEDOWN;
397
398	VK_keymap[VK_F1] = SDLK_F1;
399	VK_keymap[VK_F2] = SDLK_F2;
400	VK_keymap[VK_F3] = SDLK_F3;
401	VK_keymap[VK_F4] = SDLK_F4;
402	VK_keymap[VK_F5] = SDLK_F5;
403	VK_keymap[VK_F6] = SDLK_F6;
404	VK_keymap[VK_F7] = SDLK_F7;
405	VK_keymap[VK_F8] = SDLK_F8;
406	VK_keymap[VK_F9] = SDLK_F9;
407	VK_keymap[VK_F10] = SDLK_F10;
408	VK_keymap[VK_F11] = SDLK_F11;
409	VK_keymap[VK_F12] = SDLK_F12;
410	VK_keymap[VK_F13] = SDLK_F13;
411	VK_keymap[VK_F14] = SDLK_F14;
412	VK_keymap[VK_F15] = SDLK_F15;
413
414	VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK;
415	VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK;
416	VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK;
417	VK_keymap[VK_RSHIFT] = SDLK_RSHIFT;
418	VK_keymap[VK_LSHIFT] = SDLK_LSHIFT;
419	VK_keymap[VK_RCONTROL] = SDLK_RCTRL;
420	VK_keymap[VK_LCONTROL] = SDLK_LCTRL;
421	VK_keymap[VK_RMENU] = SDLK_RALT;
422	VK_keymap[VK_LMENU] = SDLK_LALT;
423	VK_keymap[VK_RWIN] = SDLK_RSUPER;
424	VK_keymap[VK_LWIN] = SDLK_LSUPER;
425
426	VK_keymap[VK_HELP] = SDLK_HELP;
427#ifdef VK_PRINT
428	VK_keymap[VK_PRINT] = SDLK_PRINT;
429#endif
430	VK_keymap[VK_SNAPSHOT] = SDLK_PRINT;
431	VK_keymap[VK_CANCEL] = SDLK_BREAK;
432	VK_keymap[VK_APPS] = SDLK_MENU;
433}
434
435#define EXTKEYPAD(keypad) ((scancode & 0x100)?(mvke):(keypad))
436
437static int SDL_MapVirtualKey(int scancode, int vkey)
438{
439#ifndef _WIN32_WCE
440	int	mvke  = MapVirtualKeyEx(scancode & 0xFF, 1, hLayoutUS);
441#else
442	int	mvke  = MapVirtualKey(scancode & 0xFF, 1);
443#endif
444
445	switch(vkey) {
446		/* These are always correct */
447		case VK_DIVIDE:
448		case VK_MULTIPLY:
449		case VK_SUBTRACT:
450		case VK_ADD:
451		case VK_LWIN:
452		case VK_RWIN:
453		case VK_APPS:
454		/* These are already handled */
455		case VK_LCONTROL:
456		case VK_RCONTROL:
457		case VK_LSHIFT:
458		case VK_RSHIFT:
459		case VK_LMENU:
460		case VK_RMENU:
461		case VK_SNAPSHOT:
462		case VK_PAUSE:
463			return vkey;
464	}
465	switch(mvke) {
466		/* Distinguish between keypad and extended keys */
467		case VK_INSERT: return EXTKEYPAD(VK_NUMPAD0);
468		case VK_DELETE: return EXTKEYPAD(VK_DECIMAL);
469		case VK_END:    return EXTKEYPAD(VK_NUMPAD1);
470		case VK_DOWN:   return EXTKEYPAD(VK_NUMPAD2);
471		case VK_NEXT:   return EXTKEYPAD(VK_NUMPAD3);
472		case VK_LEFT:   return EXTKEYPAD(VK_NUMPAD4);
473		case VK_CLEAR:  return EXTKEYPAD(VK_NUMPAD5);
474		case VK_RIGHT:  return EXTKEYPAD(VK_NUMPAD6);
475		case VK_HOME:   return EXTKEYPAD(VK_NUMPAD7);
476		case VK_UP:     return EXTKEYPAD(VK_NUMPAD8);
477		case VK_PRIOR:  return EXTKEYPAD(VK_NUMPAD9);
478	}
479	return mvke?mvke:vkey;
480}
481
482static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed)
483{
484	/* Set the keysym information */
485	keysym->scancode = (unsigned char) scancode;
486	keysym->mod = KMOD_NONE;
487	keysym->unicode = 0;
488	if ( pressed && SDL_TranslateUNICODE ) {
489#ifdef NO_GETKEYBOARDSTATE
490		/* Uh oh, better hope the vkey is close enough.. */
491		keysym->unicode = vkey;
492#else
493		BYTE	keystate[256];
494		Uint16	wchars[2];
495
496		GetKeyboardState(keystate);
497		if (SDL_ToUnicode((UINT)vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1)
498		{
499			keysym->unicode = wchars[0];
500		}
501#endif /* NO_GETKEYBOARDSTATE */
502	}
503
504	if ((vkey == VK_RETURN) && (scancode & 0x100)) {
505		/* No VK_ code for the keypad enter key */
506		keysym->sym = SDLK_KP_ENTER;
507	}
508	else {
509		keysym->sym = VK_keymap[SDL_MapVirtualKey(scancode, vkey)];
510	}
511
512#if 0
513	{
514		HKL     hLayoutCurrent = GetKeyboardLayout(0);
515		int     sc = scancode & 0xFF;
516
517		printf("SYM:%d, VK:0x%02X, SC:0x%04X, US:(1:0x%02X, 3:0x%02X), "
518			"Current:(1:0x%02X, 3:0x%02X)\n",
519			keysym->sym, vkey, scancode,
520			MapVirtualKeyEx(sc, 1, hLayoutUS),
521			MapVirtualKeyEx(sc, 3, hLayoutUS),
522			MapVirtualKeyEx(sc, 1, hLayoutCurrent),
523			MapVirtualKeyEx(sc, 3, hLayoutCurrent)
524		);
525	}
526#endif
527	return(keysym);
528}
529
530int DIB_CreateWindow(_THIS)
531{
532	char *windowid = SDL_getenv("SDL_WINDOWID");
533
534	SDL_RegisterApp(NULL, 0, 0);
535
536	SDL_windowid = (windowid != NULL);
537	if ( SDL_windowid ) {
538#if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
539		/* wince 2.1 does not have strtol */
540		wchar_t *windowid_t = SDL_malloc((SDL_strlen(windowid) + 1) * sizeof(wchar_t));
541		MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, windowid, -1, windowid_t, SDL_strlen(windowid) + 1);
542		SDL_Window = (HWND)wcstol(windowid_t, NULL, 0);
543		SDL_free(windowid_t);
544#else
545		SDL_Window = (HWND)SDL_strtoull(windowid, NULL, 0);
546#endif
547		if ( SDL_Window == NULL ) {
548			SDL_SetError("Couldn't get user specified window");
549			return(-1);
550		}
551
552		/* DJM: we want all event's for the user specified
553			window to be handled by SDL.
554		 */
555		userWindowProc = (WNDPROCTYPE)GetWindowLongPtr(SDL_Window, GWLP_WNDPROC);
556		SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)WinMessage);
557	} else {
558		SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
559                        (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),
560                        CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, NULL, NULL, SDL_Instance, NULL);
561		if ( SDL_Window == NULL ) {
562			SDL_SetError("Couldn't create window");
563			return(-1);
564		}
565		ShowWindow(SDL_Window, SW_HIDE);
566	}
567
568	/* JC 14 Mar 2006
569		Flush the message loop or this can cause big problems later
570		Especially if the user decides to use dialog boxes or assert()!
571	*/
572	WIN_FlushMessageQueue();
573
574	return(0);
575}
576
577void DIB_DestroyWindow(_THIS)
578{
579	if ( SDL_windowid ) {
580		SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)userWindowProc);
581	} else {
582		DestroyWindow(SDL_Window);
583	}
584	SDL_UnregisterApp();
585
586	/* JC 14 Mar 2006
587		Flush the message loop or this can cause big problems later
588		Especially if the user decides to use dialog boxes or assert()!
589	*/
590	WIN_FlushMessageQueue();
591}
592