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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2012 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 (at) 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_gapidibvideo.h"
     34 #include "SDL_vkeys.h"
     35 
     36 #ifdef SDL_VIDEO_DRIVER_GAPI
     37 #include "../gapi/SDL_gapivideo.h"
     38 #endif
     39 
     40 #ifdef SDL_VIDEO_DRIVER_WINDIB
     41 #include "SDL_dibvideo.h"
     42 #endif
     43 
     44 #ifndef WM_APP
     45 #define WM_APP	0x8000
     46 #endif
     47 
     48 #ifdef _WIN32_WCE
     49 #define NO_GETKEYBOARDSTATE
     50 #endif
     51 
     52 /* The translation table from a Microsoft VK keysym to a SDL keysym */
     53 static SDLKey VK_keymap[SDLK_LAST];
     54 static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed);
     55 static SDLKey Arrows_keymap[4];
     56 
     57 /* Masks for processing the windows KEYDOWN and KEYUP messages */
     58 #define REPEATED_KEYMASK	(1<<30)
     59 #define EXTENDED_KEYMASK	(1<<24)
     60 
     61 /* DJM: If the user setup the window for us, we want to save his window proc,
     62    and give him a chance to handle some messages. */
     63 #ifdef STRICT
     64 #define WNDPROCTYPE	WNDPROC
     65 #else
     66 #define WNDPROCTYPE	FARPROC
     67 #endif
     68 static WNDPROCTYPE userWindowProc = NULL;
     69 
     70 
     71 #ifdef SDL_VIDEO_DRIVER_GAPI
     72 
     73 WPARAM rotateKey(WPARAM key,int direction)
     74 {
     75 	if(direction ==0 ) return key;
     76 
     77 	switch (key) {
     78 		case 0x26: /* up */
     79 			return Arrows_keymap[(2 + direction) % 4];
     80 		case 0x27: /* right */
     81 			return Arrows_keymap[(1 + direction) % 4];
     82 		case 0x28: /* down */
     83 			return Arrows_keymap[direction % 4];
     84 		case 0x25: /* left */
     85 			return Arrows_keymap[(3 + direction) % 4];
     86 	}
     87 
     88 	return key;
     89 }
     90 
     91 static void GapiTransform(GapiInfo *gapiInfo, LONG *x, LONG *y)
     92 {
     93     if(gapiInfo->hiresFix)
     94     {
     95 	*x *= 2;
     96 	*y *= 2;
     97     }
     98 
     99     // 0 3 0
    100     if((!gapiInfo->userOrientation && gapiInfo->systemOrientation && !gapiInfo->gapiOrientation) ||
    101     // 3 0 3
    102        (gapiInfo->userOrientation && !gapiInfo->systemOrientation && gapiInfo->gapiOrientation) ||
    103     // 3 0 0
    104        (gapiInfo->userOrientation && !gapiInfo->systemOrientation && !gapiInfo->gapiOrientation))
    105     {
    106 	Sint16 temp = *x;
    107         *x = SDL_VideoSurface->w - *y;
    108         *y = temp;
    109     }
    110     else
    111     // 0 0 0
    112     if((!gapiInfo->userOrientation && !gapiInfo->systemOrientation && !gapiInfo->gapiOrientation) ||
    113     // 0 0 3
    114       (!gapiInfo->userOrientation && !gapiInfo->systemOrientation && gapiInfo->gapiOrientation))
    115     {
    116 	// without changes
    117 	// *x = *x;
    118 	// *y = *y;
    119     }
    120     // default
    121     else
    122     {
    123 	// without changes
    124 	// *x = *x;
    125 	// *y = *y;
    126     }
    127 }
    128 #endif
    129 
    130 
    131 /* The main Win32 event handler */
    132 LRESULT DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
    133 {
    134 	extern int posted;
    135 
    136 	switch (msg) {
    137 		case WM_SYSKEYDOWN:
    138 		case WM_KEYDOWN: {
    139 			SDL_keysym keysym;
    140 
    141 #ifdef SDL_VIDEO_DRIVER_GAPI
    142 			if(this->hidden->gapiInfo)
    143 			{
    144 				// Drop GAPI artefacts
    145 				if (wParam == 0x84 || wParam == 0x5B)
    146 					return 0;
    147 
    148 				wParam = rotateKey(wParam, this->hidden->gapiInfo->coordinateTransform);
    149 			}
    150 #endif
    151 			/* Ignore repeated keys */
    152 			if ( lParam&REPEATED_KEYMASK ) {
    153 				return(0);
    154 			}
    155 			switch (wParam) {
    156 				case VK_CONTROL:
    157 					if ( lParam&EXTENDED_KEYMASK )
    158 						wParam = VK_RCONTROL;
    159 					else
    160 						wParam = VK_LCONTROL;
    161 					break;
    162 				case VK_SHIFT:
    163 					/* EXTENDED trick doesn't work here */
    164 					{
    165 					Uint8 *state = SDL_GetKeyState(NULL);
    166 					if (state[SDLK_LSHIFT] == SDL_RELEASED && (GetKeyState(VK_LSHIFT) & 0x8000)) {
    167 						wParam = VK_LSHIFT;
    168 					} else if (state[SDLK_RSHIFT] == SDL_RELEASED && (GetKeyState(VK_RSHIFT) & 0x8000)) {
    169 						wParam = VK_RSHIFT;
    170 					} else {
    171 						/* Win9x */
    172 						int sc = HIWORD(lParam) & 0xFF;
    173 
    174 						if (sc == 0x2A)
    175 							wParam = VK_LSHIFT;
    176 						else
    177 						if (sc == 0x36)
    178 							wParam = VK_RSHIFT;
    179 						else
    180 							wParam = VK_LSHIFT;
    181 					}
    182 					}
    183 					break;
    184 				case VK_MENU:
    185 					if ( lParam&EXTENDED_KEYMASK )
    186 						wParam = VK_RMENU;
    187 					else
    188 						wParam = VK_LMENU;
    189 					break;
    190 			}
    191 #ifdef NO_GETKEYBOARDSTATE
    192 			/* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */
    193 			if ( SDL_TranslateUNICODE ) {
    194 				MSG m;
    195 
    196 				m.hwnd = hwnd;
    197 				m.message = msg;
    198 				m.wParam = wParam;
    199 				m.lParam = lParam;
    200 				m.time = 0;
    201 				if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) {
    202 					GetMessage(&m, hwnd, 0, WM_USER);
    203 			    		wParam = m.wParam;
    204 				}
    205 			}
    206 #endif /* NO_GETKEYBOARDSTATE */
    207 			posted = SDL_PrivateKeyboard(SDL_PRESSED,
    208 				TranslateKey(wParam,HIWORD(lParam),&keysym,1));
    209 		}
    210 		return(0);
    211 
    212 		case WM_SYSKEYUP:
    213 		case WM_KEYUP: {
    214 			SDL_keysym keysym;
    215 
    216 #ifdef SDL_VIDEO_DRIVER_GAPI
    217 			if(this->hidden->gapiInfo)
    218 			{
    219 				// Drop GAPI artifacts
    220 				if (wParam == 0x84 || wParam == 0x5B)
    221 					return 0;
    222 
    223 				wParam = rotateKey(wParam, this->hidden->gapiInfo->coordinateTransform);
    224 			}
    225 #endif
    226 
    227 			switch (wParam) {
    228 				case VK_CONTROL:
    229 					if ( lParam&EXTENDED_KEYMASK )
    230 						wParam = VK_RCONTROL;
    231 					else
    232 						wParam = VK_LCONTROL;
    233 					break;
    234 				case VK_SHIFT:
    235 					/* EXTENDED trick doesn't work here */
    236 					{
    237 					Uint8 *state = SDL_GetKeyState(NULL);
    238 					if (state[SDLK_LSHIFT] == SDL_PRESSED && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
    239 						wParam = VK_LSHIFT;
    240 					} else if (state[SDLK_RSHIFT] == SDL_PRESSED && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
    241 						wParam = VK_RSHIFT;
    242 					} else {
    243 						/* Win9x */
    244 						int sc = HIWORD(lParam) & 0xFF;
    245 
    246 						if (sc == 0x2A)
    247 							wParam = VK_LSHIFT;
    248 						else
    249 						if (sc == 0x36)
    250 							wParam = VK_RSHIFT;
    251 						else
    252 							wParam = VK_LSHIFT;
    253 					}
    254 					}
    255 					break;
    256 				case VK_MENU:
    257 					if ( lParam&EXTENDED_KEYMASK )
    258 						wParam = VK_RMENU;
    259 					else
    260 						wParam = VK_LMENU;
    261 					break;
    262 			}
    263 			/* Windows only reports keyup for print screen */
    264 			if ( wParam == VK_SNAPSHOT && SDL_GetKeyState(NULL)[SDLK_PRINT] == SDL_RELEASED ) {
    265 				posted = SDL_PrivateKeyboard(SDL_PRESSED,
    266 					TranslateKey(wParam,HIWORD(lParam),&keysym,1));
    267 			}
    268 			posted = SDL_PrivateKeyboard(SDL_RELEASED,
    269 				TranslateKey(wParam,HIWORD(lParam),&keysym,0));
    270 		}
    271 		return(0);
    272 #if defined(SC_SCREENSAVE) && defined(SC_MONITORPOWER)
    273 		case WM_SYSCOMMAND: {
    274 			const DWORD val = (DWORD) (wParam & 0xFFF0);
    275 			if ((val == SC_SCREENSAVE) || (val == SC_MONITORPOWER)) {
    276 				if (this->hidden->dibInfo && !allow_screensaver) {
    277 					/* Note that this doesn't stop anything on Vista
    278 					   if the screensaver has a password. */
    279 					return(0);
    280 				}
    281 			}
    282 		}
    283 		/* Fall through to default processing */
    284 #endif /* SC_SCREENSAVE && SC_MONITORPOWER */
    285 
    286 		default: {
    287 			/* Only post the event if we're watching for it */
    288 			if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
    289 			        SDL_SysWMmsg wmmsg;
    290 
    291 				SDL_VERSION(&wmmsg.version);
    292 				wmmsg.hwnd = hwnd;
    293 				wmmsg.msg = msg;
    294 				wmmsg.wParam = wParam;
    295 				wmmsg.lParam = lParam;
    296 				posted = SDL_PrivateSysWMEvent(&wmmsg);
    297 
    298 			/* DJM: If the user isn't watching for private
    299 				messages in her SDL event loop, then pass it
    300 				along to any win32 specific window proc.
    301 			 */
    302 			} else if (userWindowProc) {
    303 				return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam);
    304 			}
    305 		}
    306 		break;
    307 	}
    308 	return(DefWindowProc(hwnd, msg, wParam, lParam));
    309 }
    310 
    311 #ifdef _WIN32_WCE
    312 static BOOL GetLastStylusPos(POINT* ptLast)
    313 {
    314     BOOL bResult = FALSE;
    315     UINT nRet;
    316     GetMouseMovePoints(ptLast, 1, &nRet);
    317     if ( nRet == 1 ) {
    318         ptLast->x /= 4;
    319         ptLast->y /= 4;
    320         bResult = TRUE;
    321     }
    322     return bResult;
    323 }
    324 #endif
    325 
    326 static void DIB_GenerateMouseMotionEvent(_THIS)
    327 {
    328 	extern int mouse_relative;
    329 	extern int posted;
    330 
    331 	POINT mouse;
    332 #ifdef _WIN32_WCE
    333 	if ( !GetCursorPos(&mouse) && !GetLastStylusPos(&mouse) ) return;
    334 #else
    335 	if ( !GetCursorPos(&mouse) ) return;
    336 #endif
    337 
    338 	if ( mouse_relative ) {
    339 		POINT center;
    340 		center.x = (SDL_VideoSurface->w/2);
    341 		center.y = (SDL_VideoSurface->h/2);
    342 		ClientToScreen(SDL_Window, &center);
    343 
    344 		mouse.x -= center.x;
    345 		mouse.y -= center.y;
    346 		if ( mouse.x || mouse.y ) {
    347 			SetCursorPos(center.x, center.y);
    348 			posted = SDL_PrivateMouseMotion(0, 1, (Sint16)mouse.x, (Sint16)mouse.y);
    349 		}
    350 	} else {
    351 		ScreenToClient(SDL_Window, &mouse);
    352 #ifdef SDL_VIDEO_DRIVER_GAPI
    353        if (SDL_VideoSurface && this->hidden->gapiInfo)
    354 			GapiTransform(this->hidden->gapiInfo, &mouse.x, &mouse.y);
    355 #endif
    356 		posted = SDL_PrivateMouseMotion(0, 0, (Sint16)mouse.x, (Sint16)mouse.y);
    357 	}
    358 }
    359 
    360 void DIB_PumpEvents(_THIS)
    361 {
    362 	MSG msg;
    363 
    364 	while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
    365 		if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
    366 			DispatchMessage(&msg);
    367 		}
    368 	}
    369 
    370 	if ( SDL_GetAppState() & SDL_APPMOUSEFOCUS ) {
    371 		DIB_GenerateMouseMotionEvent( this );
    372 	}
    373 }
    374 
    375 static HKL hLayoutUS = NULL;
    376 
    377 void DIB_InitOSKeymap(_THIS)
    378 {
    379 	int	i;
    380 #ifndef _WIN32_WCE
    381 	char	current_layout[KL_NAMELENGTH];
    382 
    383 	GetKeyboardLayoutName(current_layout);
    384 	//printf("Initial Keyboard Layout Name: '%s'\n", current_layout);
    385 
    386 	hLayoutUS = LoadKeyboardLayout("00000409", KLF_NOTELLSHELL);
    387 
    388 	if (!hLayoutUS) {
    389 		//printf("Failed to load US keyboard layout. Using current.\n");
    390 		hLayoutUS = GetKeyboardLayout(0);
    391 	}
    392 	LoadKeyboardLayout(current_layout, KLF_ACTIVATE);
    393 #else
    394 #if _WIN32_WCE >=420
    395 	TCHAR	current_layout[KL_NAMELENGTH];
    396 
    397 	GetKeyboardLayoutName(current_layout);
    398 	//printf("Initial Keyboard Layout Name: '%s'\n", current_layout);
    399 
    400 	hLayoutUS = LoadKeyboardLayout(L"00000409", 0);
    401 
    402 	if (!hLayoutUS) {
    403 		//printf("Failed to load US keyboard layout. Using current.\n");
    404 		hLayoutUS = GetKeyboardLayout(0);
    405 	}
    406 	LoadKeyboardLayout(current_layout, 0);
    407 #endif // _WIN32_WCE >=420
    408 #endif
    409 	/* Map the VK keysyms */
    410 	for ( i=0; i<SDL_arraysize(VK_keymap); ++i )
    411 		VK_keymap[i] = SDLK_UNKNOWN;
    412 
    413 	VK_keymap[VK_BACK] = SDLK_BACKSPACE;
    414 	VK_keymap[VK_TAB] = SDLK_TAB;
    415 	VK_keymap[VK_CLEAR] = SDLK_CLEAR;
    416 	VK_keymap[VK_RETURN] = SDLK_RETURN;
    417 	VK_keymap[VK_PAUSE] = SDLK_PAUSE;
    418 	VK_keymap[VK_ESCAPE] = SDLK_ESCAPE;
    419 	VK_keymap[VK_SPACE] = SDLK_SPACE;
    420 	VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE;
    421 	VK_keymap[VK_COMMA] = SDLK_COMMA;
    422 	VK_keymap[VK_MINUS] = SDLK_MINUS;
    423 	VK_keymap[VK_PERIOD] = SDLK_PERIOD;
    424 	VK_keymap[VK_SLASH] = SDLK_SLASH;
    425 	VK_keymap[VK_0] = SDLK_0;
    426 	VK_keymap[VK_1] = SDLK_1;
    427 	VK_keymap[VK_2] = SDLK_2;
    428 	VK_keymap[VK_3] = SDLK_3;
    429 	VK_keymap[VK_4] = SDLK_4;
    430 	VK_keymap[VK_5] = SDLK_5;
    431 	VK_keymap[VK_6] = SDLK_6;
    432 	VK_keymap[VK_7] = SDLK_7;
    433 	VK_keymap[VK_8] = SDLK_8;
    434 	VK_keymap[VK_9] = SDLK_9;
    435 	VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON;
    436 	VK_keymap[VK_EQUALS] = SDLK_EQUALS;
    437 	VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET;
    438 	VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH;
    439 	VK_keymap[VK_OEM_102] = SDLK_LESS;
    440 	VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET;
    441 	VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE;
    442 	VK_keymap[VK_BACKTICK] = SDLK_BACKQUOTE;
    443 	VK_keymap[VK_A] = SDLK_a;
    444 	VK_keymap[VK_B] = SDLK_b;
    445 	VK_keymap[VK_C] = SDLK_c;
    446 	VK_keymap[VK_D] = SDLK_d;
    447 	VK_keymap[VK_E] = SDLK_e;
    448 	VK_keymap[VK_F] = SDLK_f;
    449 	VK_keymap[VK_G] = SDLK_g;
    450 	VK_keymap[VK_H] = SDLK_h;
    451 	VK_keymap[VK_I] = SDLK_i;
    452 	VK_keymap[VK_J] = SDLK_j;
    453 	VK_keymap[VK_K] = SDLK_k;
    454 	VK_keymap[VK_L] = SDLK_l;
    455 	VK_keymap[VK_M] = SDLK_m;
    456 	VK_keymap[VK_N] = SDLK_n;
    457 	VK_keymap[VK_O] = SDLK_o;
    458 	VK_keymap[VK_P] = SDLK_p;
    459 	VK_keymap[VK_Q] = SDLK_q;
    460 	VK_keymap[VK_R] = SDLK_r;
    461 	VK_keymap[VK_S] = SDLK_s;
    462 	VK_keymap[VK_T] = SDLK_t;
    463 	VK_keymap[VK_U] = SDLK_u;
    464 	VK_keymap[VK_V] = SDLK_v;
    465 	VK_keymap[VK_W] = SDLK_w;
    466 	VK_keymap[VK_X] = SDLK_x;
    467 	VK_keymap[VK_Y] = SDLK_y;
    468 	VK_keymap[VK_Z] = SDLK_z;
    469 	VK_keymap[VK_DELETE] = SDLK_DELETE;
    470 
    471 	VK_keymap[VK_NUMPAD0] = SDLK_KP0;
    472 	VK_keymap[VK_NUMPAD1] = SDLK_KP1;
    473 	VK_keymap[VK_NUMPAD2] = SDLK_KP2;
    474 	VK_keymap[VK_NUMPAD3] = SDLK_KP3;
    475 	VK_keymap[VK_NUMPAD4] = SDLK_KP4;
    476 	VK_keymap[VK_NUMPAD5] = SDLK_KP5;
    477 	VK_keymap[VK_NUMPAD6] = SDLK_KP6;
    478 	VK_keymap[VK_NUMPAD7] = SDLK_KP7;
    479 	VK_keymap[VK_NUMPAD8] = SDLK_KP8;
    480 	VK_keymap[VK_NUMPAD9] = SDLK_KP9;
    481 	VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD;
    482 	VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE;
    483 	VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY;
    484 	VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS;
    485 	VK_keymap[VK_ADD] = SDLK_KP_PLUS;
    486 
    487 	VK_keymap[VK_UP] = SDLK_UP;
    488 	VK_keymap[VK_DOWN] = SDLK_DOWN;
    489 	VK_keymap[VK_RIGHT] = SDLK_RIGHT;
    490 	VK_keymap[VK_LEFT] = SDLK_LEFT;
    491 	VK_keymap[VK_INSERT] = SDLK_INSERT;
    492 	VK_keymap[VK_HOME] = SDLK_HOME;
    493 	VK_keymap[VK_END] = SDLK_END;
    494 	VK_keymap[VK_PRIOR] = SDLK_PAGEUP;
    495 	VK_keymap[VK_NEXT] = SDLK_PAGEDOWN;
    496 
    497 	VK_keymap[VK_F1] = SDLK_F1;
    498 	VK_keymap[VK_F2] = SDLK_F2;
    499 	VK_keymap[VK_F3] = SDLK_F3;
    500 	VK_keymap[VK_F4] = SDLK_F4;
    501 	VK_keymap[VK_F5] = SDLK_F5;
    502 	VK_keymap[VK_F6] = SDLK_F6;
    503 	VK_keymap[VK_F7] = SDLK_F7;
    504 	VK_keymap[VK_F8] = SDLK_F8;
    505 	VK_keymap[VK_F9] = SDLK_F9;
    506 	VK_keymap[VK_F10] = SDLK_F10;
    507 	VK_keymap[VK_F11] = SDLK_F11;
    508 	VK_keymap[VK_F12] = SDLK_F12;
    509 	VK_keymap[VK_F13] = SDLK_F13;
    510 	VK_keymap[VK_F14] = SDLK_F14;
    511 	VK_keymap[VK_F15] = SDLK_F15;
    512 
    513 	VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK;
    514 	VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK;
    515 	VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK;
    516 	VK_keymap[VK_RSHIFT] = SDLK_RSHIFT;
    517 	VK_keymap[VK_LSHIFT] = SDLK_LSHIFT;
    518 	VK_keymap[VK_RCONTROL] = SDLK_RCTRL;
    519 	VK_keymap[VK_LCONTROL] = SDLK_LCTRL;
    520 	VK_keymap[VK_RMENU] = SDLK_RALT;
    521 	VK_keymap[VK_LMENU] = SDLK_LALT;
    522 	VK_keymap[VK_RWIN] = SDLK_RSUPER;
    523 	VK_keymap[VK_LWIN] = SDLK_LSUPER;
    524 
    525 	VK_keymap[VK_HELP] = SDLK_HELP;
    526 #ifdef VK_PRINT
    527 	VK_keymap[VK_PRINT] = SDLK_PRINT;
    528 #endif
    529 	VK_keymap[VK_SNAPSHOT] = SDLK_PRINT;
    530 	VK_keymap[VK_CANCEL] = SDLK_BREAK;
    531 	VK_keymap[VK_APPS] = SDLK_MENU;
    532 
    533 	Arrows_keymap[3] = 0x25;
    534 	Arrows_keymap[2] = 0x26;
    535 	Arrows_keymap[1] = 0x27;
    536 	Arrows_keymap[0] = 0x28;
    537 }
    538 
    539 #define EXTKEYPAD(keypad) ((scancode & 0x100)?(mvke):(keypad))
    540 
    541 static int SDL_MapVirtualKey(int scancode, int vkey)
    542 {
    543 #ifndef _WIN32_WCE
    544 	int	mvke  = MapVirtualKeyEx(scancode & 0xFF, 1, hLayoutUS);
    545 #else
    546 	int	mvke  = MapVirtualKey(scancode & 0xFF, 1);
    547 #endif
    548 
    549 	switch(vkey) {
    550 		/* These are always correct */
    551 		case VK_DIVIDE:
    552 		case VK_MULTIPLY:
    553 		case VK_SUBTRACT:
    554 		case VK_ADD:
    555 		case VK_LWIN:
    556 		case VK_RWIN:
    557 		case VK_APPS:
    558 		/* These are already handled */
    559 		case VK_LCONTROL:
    560 		case VK_RCONTROL:
    561 		case VK_LSHIFT:
    562 		case VK_RSHIFT:
    563 		case VK_LMENU:
    564 		case VK_RMENU:
    565 		case VK_SNAPSHOT:
    566 		case VK_PAUSE:
    567 			return vkey;
    568 	}
    569 	switch(mvke) {
    570 		/* Distinguish between keypad and extended keys */
    571 		case VK_INSERT: return EXTKEYPAD(VK_NUMPAD0);
    572 		case VK_DELETE: return EXTKEYPAD(VK_DECIMAL);
    573 		case VK_END:    return EXTKEYPAD(VK_NUMPAD1);
    574 		case VK_DOWN:   return EXTKEYPAD(VK_NUMPAD2);
    575 		case VK_NEXT:   return EXTKEYPAD(VK_NUMPAD3);
    576 		case VK_LEFT:   return EXTKEYPAD(VK_NUMPAD4);
    577 		case VK_CLEAR:  return EXTKEYPAD(VK_NUMPAD5);
    578 		case VK_RIGHT:  return EXTKEYPAD(VK_NUMPAD6);
    579 		case VK_HOME:   return EXTKEYPAD(VK_NUMPAD7);
    580 		case VK_UP:     return EXTKEYPAD(VK_NUMPAD8);
    581 		case VK_PRIOR:  return EXTKEYPAD(VK_NUMPAD9);
    582 	}
    583 	return mvke?mvke:vkey;
    584 }
    585 
    586 static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed)
    587 {
    588 	/* Set the keysym information */
    589 	keysym->scancode = (unsigned char) scancode;
    590 	keysym->mod = KMOD_NONE;
    591 	keysym->unicode = 0;
    592 
    593 	if ((vkey == VK_RETURN) && (scancode & 0x100)) {
    594 		/* No VK_ code for the keypad enter key */
    595 		keysym->sym = SDLK_KP_ENTER;
    596 	}
    597 	else {
    598 		keysym->sym = VK_keymap[SDL_MapVirtualKey(scancode, vkey)];
    599 	}
    600 
    601 	if ( pressed && SDL_TranslateUNICODE ) {
    602 #ifdef NO_GETKEYBOARDSTATE
    603 		/* Uh oh, better hope the vkey is close enough.. */
    604 		if((keysym->sym == vkey) || (vkey > 0x7f))
    605 		keysym->unicode = vkey;
    606 #else
    607 		BYTE	keystate[256];
    608 		Uint16	wchars[2];
    609 
    610 		GetKeyboardState(keystate);
    611 		/* Numlock isn't taken into account in ToUnicode,
    612 		 * so we handle it as a special case here */
    613 		if ((keystate[VK_NUMLOCK] & 1) && vkey >= VK_NUMPAD0 && vkey <= VK_NUMPAD9)
    614 		{
    615 			keysym->unicode = vkey - VK_NUMPAD0 + '0';
    616 		}
    617 		else if (SDL_ToUnicode((UINT)vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) > 0)
    618 		{
    619 			keysym->unicode = wchars[0];
    620 		}
    621 #endif /* NO_GETKEYBOARDSTATE */
    622 	}
    623 
    624 #if 0
    625 	{
    626 		HKL     hLayoutCurrent = GetKeyboardLayout(0);
    627 		int     sc = scancode & 0xFF;
    628 
    629 		printf("SYM:%d, VK:0x%02X, SC:0x%04X, US:(1:0x%02X, 3:0x%02X), "
    630 			"Current:(1:0x%02X, 3:0x%02X)\n",
    631 			keysym->sym, vkey, scancode,
    632 			MapVirtualKeyEx(sc, 1, hLayoutUS),
    633 			MapVirtualKeyEx(sc, 3, hLayoutUS),
    634 			MapVirtualKeyEx(sc, 1, hLayoutCurrent),
    635 			MapVirtualKeyEx(sc, 3, hLayoutCurrent)
    636 		);
    637 	}
    638 #endif
    639 	return(keysym);
    640 }
    641 
    642 int DIB_CreateWindow(_THIS)
    643 {
    644 	char *windowid;
    645 
    646 	SDL_RegisterApp(NULL, 0, 0);
    647 
    648 	windowid = SDL_getenv("SDL_WINDOWID");
    649 	SDL_windowid = (windowid != NULL);
    650 	if ( SDL_windowid ) {
    651 #if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
    652 		/* wince 2.1 does not have strtol */
    653 		wchar_t *windowid_t = SDL_malloc((SDL_strlen(windowid) + 1) * sizeof(wchar_t));
    654 		MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, windowid, -1, windowid_t, SDL_strlen(windowid) + 1);
    655 		SDL_Window = (HWND)wcstol(windowid_t, NULL, 0);
    656 		SDL_free(windowid_t);
    657 #else
    658 		SDL_Window = (HWND)((size_t)SDL_strtoull(windowid, NULL, 0));
    659 #endif
    660 		if ( SDL_Window == NULL ) {
    661 			SDL_SetError("Couldn't get user specified window");
    662 			return(-1);
    663 		}
    664 
    665 		/* DJM: we want all event's for the user specified
    666 			window to be handled by SDL.
    667 		 */
    668 		userWindowProc = (WNDPROCTYPE)GetWindowLongPtr(SDL_Window, GWLP_WNDPROC);
    669 		SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)WinMessage);
    670 	} else {
    671 		SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
    672                         (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),
    673                         CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, NULL, NULL, SDL_Instance, NULL);
    674 		if ( SDL_Window == NULL ) {
    675 			SDL_SetError("Couldn't create window");
    676 			return(-1);
    677 		}
    678 		ShowWindow(SDL_Window, SW_HIDE);
    679 	}
    680 
    681 	/* JC 14 Mar 2006
    682 		Flush the message loop or this can cause big problems later
    683 		Especially if the user decides to use dialog boxes or assert()!
    684 	*/
    685 	WIN_FlushMessageQueue();
    686 
    687 	return(0);
    688 }
    689 
    690 void DIB_DestroyWindow(_THIS)
    691 {
    692 	if ( SDL_windowid ) {
    693 		SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)userWindowProc);
    694 	} else {
    695 		DestroyWindow(SDL_Window);
    696 	}
    697 	SDL_UnregisterApp();
    698 
    699 	/* JC 14 Mar 2006
    700 		Flush the message loop or this can cause big problems later
    701 		Especially if the user decides to use dialog boxes or assert()!
    702 	*/
    703 	WIN_FlushMessageQueue();
    704 }
    705