Mercurial > sdl-ios-xcode
annotate test/testwm.c @ 1348:40d0975c1769
Date: Mon, 6 Feb 2006 11:41:04 -0500
From: "mystml@adinet.com.uy"
Subject: [SDL] ALT-F4 using DirectX
My game isn't getting SDL_QUIT when I press ALT-F4 using the DirectX
driver; it does get SDL_QUIT when I press the red X in the window.
I tracked this down to DX5_HandleMessage() in SDL_dx5events.c;
WM_SYSKEYDOWN is being trapped and ignored which causes Windows not to post
a WM_CLOSE, hence no SDL_QUIT is being generated.
The relevant code is this :
/* The keyboard is handled via DirectInput */
case WM_SYSKEYUP:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_KEYDOWN: {
/* Ignore windows keyboard messages */;
}
return(0);
If I comment the WM_SYSKEYDOWN case, it falls through DefWindowProc() and
ALT-F4 starts working again.
I'm not sure about the best way to fix this. One option is handling ALT-F4
as a particular case somehow, but doesn't sound good. Another option would
be to handle WM_SYSKEYDOWN separately and breaking instead of returning 0,
so processing falls through and goes to DefWindowProc which does The Right
Thing (TM). This seems to be the minimal change that makes ALT-F4 work and
normal keyboard input continues to work.
Does this sound reasonable? Am I overlooking anything? Do I submit a patch?
--Gabriel
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 08 Feb 2006 17:19:43 +0000 |
| parents | 08e3393e9ffb |
| children | 14717b52abc0 290b5baf2fca |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Test out the window manager interaction functions */ | |
| 3 | |
| 4 #include <stdio.h> | |
| 5 #include <stdlib.h> | |
| 6 #include <string.h> | |
| 7 | |
| 8 #include "SDL.h" | |
| 9 | |
| 10 /* Is the cursor visible? */ | |
| 11 static int visible = 1; | |
| 12 | |
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13 static Uint8 video_bpp; |
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14 static Uint32 video_flags; |
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15 |
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16 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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17 static void quit(int rc) |
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18 { |
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19 SDL_Quit(); |
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20 exit(rc); |
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21 } |
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22 |
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23 int SetVideoMode(int w, int h) |
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24 { |
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25 SDL_Surface *screen; |
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26 int i; |
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27 Uint8 *buffer; |
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28 SDL_Color palette[256]; |
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29 |
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30 screen = SDL_SetVideoMode(w, h, video_bpp, video_flags); |
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31 if ( screen == NULL ) { |
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32 fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n", |
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33 w, h, video_bpp, SDL_GetError()); |
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34 return(-1); |
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35 } |
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36 printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ? |
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37 "fullscreen" : "windowed"); |
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38 |
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39 /* Set the surface pixels and refresh! */ |
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40 for ( i=0; i<256; ++i ) { |
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41 palette[i].r = 255-i; |
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42 palette[i].g = 255-i; |
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43 palette[i].b = 255-i; |
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44 } |
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45 SDL_SetColors(screen, palette, 0, 256); |
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46 if ( SDL_LockSurface(screen) < 0 ) { |
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47 fprintf(stderr, "Couldn't lock display surface: %s\n", |
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48 SDL_GetError()); |
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49 return(-1); |
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50 } |
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51 buffer = (Uint8 *)screen->pixels; |
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52 for ( i=0; i<screen->h; ++i ) { |
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53 memset(buffer,(i*255)/screen->h, |
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54 screen->w*screen->format->BytesPerPixel); |
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55 buffer += screen->pitch; |
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56 } |
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57 SDL_UnlockSurface(screen); |
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58 SDL_UpdateRect(screen, 0, 0, 0, 0); |
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59 |
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60 return(0); |
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61 } |
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62 |
| 0 | 63 SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp) |
| 64 { | |
| 65 SDL_Surface *icon; | |
| 66 Uint8 *pixels; | |
| 67 Uint8 *mask; | |
| 591 | 68 int mlen, i, j; |
| 0 | 69 |
| 70 *maskp = NULL; | |
| 71 | |
| 72 /* Load the icon surface */ | |
| 73 icon = SDL_LoadBMP(file); | |
| 74 if ( icon == NULL ) { | |
| 75 fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError()); | |
| 76 return(NULL); | |
| 77 } | |
| 78 | |
| 591 | 79 /* Check width and height |
| 0 | 80 if ( (icon->w%8) != 0 ) { |
| 81 fprintf(stderr, "Icon width must be a multiple of 8!\n"); | |
| 82 SDL_FreeSurface(icon); | |
| 83 return(NULL); | |
| 84 } | |
| 591 | 85 */ |
| 86 | |
| 87 | |
| 0 | 88 if ( icon->format->palette == NULL ) { |
| 89 fprintf(stderr, "Icon must have a palette!\n"); | |
| 90 SDL_FreeSurface(icon); | |
| 91 return(NULL); | |
| 92 } | |
| 93 | |
| 94 /* Set the colorkey */ | |
| 95 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *)icon->pixels)); | |
| 96 | |
| 97 /* Create the mask */ | |
| 98 pixels = (Uint8 *)icon->pixels; | |
| 99 printf("Transparent pixel: (%d,%d,%d)\n", | |
| 100 icon->format->palette->colors[*pixels].r, | |
| 101 icon->format->palette->colors[*pixels].g, | |
| 102 icon->format->palette->colors[*pixels].b); | |
| 591 | 103 mlen = (icon->w*icon->h + 7) / 8; |
| 104 mask = (Uint8 *)malloc(mlen); | |
| 0 | 105 if ( mask == NULL ) { |
| 106 fprintf(stderr, "Out of memory!\n"); | |
| 107 SDL_FreeSurface(icon); | |
| 108 return(NULL); | |
| 109 } | |
| 591 | 110 memset(mask, 0, mlen); |
| 111 for ( i=0; i < icon->h; i++) | |
| 112 for (j=0; j < icon->w; j++) { | |
| 113 int pindex = i * icon->pitch + j; | |
| 114 int mindex = i * icon->w + j; | |
| 115 if ( pixels[pindex] != *pixels ) | |
| 116 mask[mindex>>3] |= 1 << (7 - (mindex & 7)); | |
| 117 } | |
| 0 | 118 *maskp = mask; |
| 119 return(icon); | |
| 120 } | |
| 121 | |
| 122 void HotKey_ToggleFullScreen(void) | |
| 123 { | |
| 124 SDL_Surface *screen; | |
| 125 | |
| 126 screen = SDL_GetVideoSurface(); | |
| 127 if ( SDL_WM_ToggleFullScreen(screen) ) { | |
| 128 printf("Toggled fullscreen mode - now %s\n", | |
| 129 (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed"); | |
| 130 } else { | |
| 131 printf("Unable to toggle fullscreen mode\n"); | |
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132 video_flags ^= SDL_FULLSCREEN; |
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133 SetVideoMode(screen->w, screen->h); |
| 0 | 134 } |
| 135 } | |
| 136 | |
| 137 void HotKey_ToggleGrab(void) | |
| 138 { | |
| 139 SDL_GrabMode mode; | |
| 140 | |
| 141 printf("Ctrl-G: toggling input grab!\n"); | |
| 142 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 143 if ( mode == SDL_GRAB_ON ) { | |
| 144 printf("Grab was on\n"); | |
| 145 } else { | |
| 146 printf("Grab was off\n"); | |
| 147 } | |
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148 mode = SDL_WM_GrabInput(mode ? SDL_GRAB_OFF : SDL_GRAB_ON); |
| 0 | 149 if ( mode == SDL_GRAB_ON ) { |
| 150 printf("Grab is now on\n"); | |
| 151 } else { | |
| 152 printf("Grab is now off\n"); | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 void HotKey_Iconify(void) | |
| 157 { | |
| 158 printf("Ctrl-Z: iconifying window!\n"); | |
| 159 SDL_WM_IconifyWindow(); | |
| 160 } | |
| 161 | |
| 162 void HotKey_Quit(void) | |
| 163 { | |
| 164 SDL_Event event; | |
| 165 | |
| 166 printf("Posting internal quit request\n"); | |
| 167 event.type = SDL_USEREVENT; | |
| 168 SDL_PushEvent(&event); | |
| 169 } | |
| 170 | |
| 171 int FilterEvents(const SDL_Event *event) | |
| 172 { | |
| 173 static int reallyquit = 0; | |
| 174 | |
| 175 switch (event->type) { | |
| 176 | |
| 177 case SDL_ACTIVEEVENT: | |
| 178 /* See what happened */ | |
| 179 printf("App %s ", | |
| 180 event->active.gain ? "gained" : "lost"); | |
| 181 if ( event->active.state & SDL_APPACTIVE ) | |
| 182 printf("active "); | |
| 183 if ( event->active.state & SDL_APPMOUSEFOCUS ) | |
| 184 printf("mouse "); | |
| 185 if ( event->active.state & SDL_APPINPUTFOCUS ) | |
| 186 printf("input "); | |
| 187 printf("focus\n"); | |
| 188 | |
| 189 /* See if we are iconified or restored */ | |
| 190 if ( event->active.state & SDL_APPACTIVE ) { | |
| 191 printf("App has been %s\n", | |
| 192 event->active.gain ? | |
| 193 "restored" : "iconified"); | |
| 194 } | |
| 195 return(0); | |
| 196 | |
| 197 /* We want to toggle visibility on buttonpress */ | |
| 198 case SDL_MOUSEBUTTONDOWN: | |
| 199 case SDL_MOUSEBUTTONUP: | |
| 200 if ( event->button.state == SDL_PRESSED ) { | |
| 201 visible = !visible; | |
| 202 SDL_ShowCursor(visible); | |
| 203 } | |
| 204 printf("Mouse button %d has been %s\n", | |
| 205 event->button.button, | |
| 206 (event->button.state == SDL_PRESSED) ? | |
| 207 "pressed" : "released"); | |
| 208 return(0); | |
| 209 | |
| 210 /* Show relative mouse motion */ | |
| 211 case SDL_MOUSEMOTION: | |
| 212 #if 0 | |
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213 printf("Mouse motion: {%d,%d} (%d,%d)\n", |
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214 event->motion.x, event->motion.y, |
| 0 | 215 event->motion.xrel, event->motion.yrel); |
| 216 #endif | |
| 217 return(0); | |
| 218 | |
| 219 case SDL_KEYDOWN: | |
| 220 if ( event->key.keysym.sym == SDLK_ESCAPE ) { | |
| 221 HotKey_Quit(); | |
| 222 } | |
| 223 if ( (event->key.keysym.sym == SDLK_g) && | |
| 224 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 225 HotKey_ToggleGrab(); | |
| 226 } | |
| 227 if ( (event->key.keysym.sym == SDLK_z) && | |
| 228 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 229 HotKey_Iconify(); | |
| 230 } | |
| 231 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
| 232 (event->key.keysym.mod & KMOD_ALT) ) { | |
| 233 HotKey_ToggleFullScreen(); | |
| 234 } | |
| 235 return(0); | |
| 236 | |
| 237 /* Pass the video resize event through .. */ | |
| 238 case SDL_VIDEORESIZE: | |
| 239 return(1); | |
| 240 | |
| 241 /* This is important! Queue it if we want to quit. */ | |
| 242 case SDL_QUIT: | |
| 243 if ( ! reallyquit ) { | |
| 244 reallyquit = 1; | |
| 245 printf("Quit requested\n"); | |
| 246 return(0); | |
| 247 } | |
| 248 printf("Quit demanded\n"); | |
| 249 return(1); | |
| 250 | |
| 251 /* This will never happen because events queued directly | |
| 252 to the event queue are not filtered. | |
| 253 */ | |
| 254 case SDL_USEREVENT: | |
| 255 return(1); | |
| 256 | |
| 257 /* Drop all other events */ | |
| 258 default: | |
| 259 return(0); | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 int main(int argc, char *argv[]) | |
| 264 { | |
| 265 SDL_Event event; | |
| 266 char *title; | |
| 267 SDL_Surface *icon; | |
| 268 Uint8 *icon_mask; | |
| 269 int parsed; | |
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270 int w, h; |
| 0 | 271 |
| 272 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 273 fprintf(stderr, | |
| 274 "Couldn't initialize SDL: %s\n", SDL_GetError()); | |
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275 return(1); |
| 0 | 276 } |
| 277 | |
| 278 /* Check command line arguments */ | |
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279 w = 640; |
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280 h = 480; |
| 0 | 281 video_bpp = 8; |
| 282 video_flags = SDL_SWSURFACE; | |
| 283 parsed = 1; | |
| 284 while ( parsed ) { | |
| 285 if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) { | |
| 286 video_flags |= SDL_FULLSCREEN; | |
| 287 argc -= 1; | |
| 288 argv += 1; | |
| 289 } else | |
| 290 if ( (argc >= 2) && (strcmp(argv[1], "-resize") == 0) ) { | |
| 291 video_flags |= SDL_RESIZABLE; | |
| 292 argc -= 1; | |
| 293 argv += 1; | |
| 294 } else | |
| 295 if ( (argc >= 2) && (strcmp(argv[1], "-noframe") == 0) ) { | |
| 296 video_flags |= SDL_NOFRAME; | |
| 297 argc -= 1; | |
| 298 argv += 1; | |
| 299 } else | |
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300 if ( (argc >= 3) && (strcmp(argv[1], "-width") == 0) ) { |
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301 w = atoi(argv[2]); |
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302 argc -= 2; |
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303 argv += 2; |
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304 } else |
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305 if ( (argc >= 3) && (strcmp(argv[1], "-height") == 0) ) { |
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306 h = atoi(argv[2]); |
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307 argc -= 2; |
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308 argv += 2; |
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309 } else |
| 0 | 310 if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) { |
| 311 video_bpp = atoi(argv[2]); | |
| 312 argc -= 2; | |
| 313 argv += 2; | |
| 314 } else { | |
| 315 parsed = 0; | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 /* Set the icon -- this must be done before the first mode set */ | |
| 320 icon = LoadIconSurface("icon.bmp", &icon_mask); | |
| 321 if ( icon != NULL ) { | |
| 322 SDL_WM_SetIcon(icon, icon_mask); | |
| 323 } | |
| 324 if ( icon_mask != NULL ) | |
| 325 free(icon_mask); | |
| 326 | |
| 327 /* Set the title bar */ | |
| 328 if ( argv[1] == NULL ) | |
| 329 title = "Testing 1.. 2.. 3..."; | |
| 330 else | |
| 331 title = argv[1]; | |
| 332 SDL_WM_SetCaption(title, "testwm"); | |
| 333 | |
| 334 /* See if it's really set */ | |
| 335 SDL_WM_GetCaption(&title, NULL); | |
| 336 if ( title ) | |
| 337 printf("Title was set to: %s\n", title); | |
| 338 else | |
| 339 printf("No window title was set!\n"); | |
| 340 | |
| 341 /* Initialize the display */ | |
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342 if ( SetVideoMode(w, h) < 0 ) { |
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343 quit(1); |
| 0 | 344 } |
| 345 | |
| 346 /* Set an event filter that discards everything but QUIT */ | |
| 347 SDL_SetEventFilter(FilterEvents); | |
| 348 | |
| 349 /* Ignore key up events, they don't even get filtered */ | |
| 350 SDL_EventState(SDL_KEYUP, SDL_IGNORE); | |
| 351 | |
| 352 /* Loop, waiting for QUIT */ | |
| 353 while ( SDL_WaitEvent(&event) ) { | |
| 354 switch (event.type) { | |
| 355 case SDL_VIDEORESIZE: | |
| 356 printf("Got a resize event: %dx%d\n", | |
| 357 event.resize.w, event.resize.h); | |
| 358 SetVideoMode(event.resize.w, event.resize.h); | |
| 359 break; | |
| 360 case SDL_USEREVENT: | |
| 361 printf("Handling internal quit request\n"); | |
| 362 /* Fall through to the quit handler */ | |
| 363 case SDL_QUIT: | |
| 364 printf("Bye bye..\n"); | |
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365 quit(0); |
| 0 | 366 default: |
| 367 /* This should never happen */ | |
| 368 printf("Warning: Event %d wasn't filtered\n", | |
| 369 event.type); | |
| 370 break; | |
| 371 } | |
| 372 } | |
| 373 printf("SDL_WaitEvent() error: %s\n", SDL_GetError()); | |
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374 SDL_Quit(); |
| 0 | 375 return(255); |
| 376 } |