SDL  2.0
SDL_windowsevents.c
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 #include "../../SDL_internal.h"
22 
23 #if SDL_VIDEO_DRIVER_WINDOWS
24 
25 #include "SDL_windowsvideo.h"
26 #include "SDL_windowsshape.h"
27 #include "SDL_system.h"
28 #include "SDL_syswm.h"
29 #include "SDL_timer.h"
30 #include "SDL_vkeys.h"
31 #include "SDL_hints.h"
32 #include "../../events/SDL_events_c.h"
33 #include "../../events/SDL_touch_c.h"
34 #include "../../events/scancodes_windows.h"
35 #include "SDL_assert.h"
36 #include "SDL_hints.h"
37 
38 /* Dropfile support */
39 #include <shellapi.h>
40 
41 /* For GET_X_LPARAM, GET_Y_LPARAM. */
42 #include <windowsx.h>
43 
44 /* #define WMMSG_DEBUG */
45 #ifdef WMMSG_DEBUG
46 #include <stdio.h>
47 #include "wmmsg.h"
48 #endif
49 
50 /* For processing mouse WM_*BUTTON* and WM_MOUSEMOVE message-data from GetMessageExtraInfo() */
51 #define MOUSEEVENTF_FROMTOUCH 0xFF515700
52 
53 /* Masks for processing the windows KEYDOWN and KEYUP messages */
54 #define REPEATED_KEYMASK (1<<30)
55 #define EXTENDED_KEYMASK (1<<24)
56 
57 #define VK_ENTER 10 /* Keypad Enter ... no VKEY defined? */
58 #ifndef VK_OEM_NEC_EQUAL
59 #define VK_OEM_NEC_EQUAL 0x92
60 #endif
61 
62 /* Make sure XBUTTON stuff is defined that isn't in older Platform SDKs... */
63 #ifndef WM_XBUTTONDOWN
64 #define WM_XBUTTONDOWN 0x020B
65 #endif
66 #ifndef WM_XBUTTONUP
67 #define WM_XBUTTONUP 0x020C
68 #endif
69 #ifndef GET_XBUTTON_WPARAM
70 #define GET_XBUTTON_WPARAM(w) (HIWORD(w))
71 #endif
72 #ifndef WM_INPUT
73 #define WM_INPUT 0x00ff
74 #endif
75 #ifndef WM_TOUCH
76 #define WM_TOUCH 0x0240
77 #endif
78 #ifndef WM_MOUSEHWHEEL
79 #define WM_MOUSEHWHEEL 0x020E
80 #endif
81 #ifndef WM_UNICHAR
82 #define WM_UNICHAR 0x0109
83 #endif
84 
85 static SDL_Scancode
86 VKeytoScancode(WPARAM vkey)
87 {
88  switch (vkey) {
89  case VK_CLEAR: return SDL_SCANCODE_CLEAR;
90  case VK_MODECHANGE: return SDL_SCANCODE_MODE;
91  case VK_SELECT: return SDL_SCANCODE_SELECT;
92  case VK_EXECUTE: return SDL_SCANCODE_EXECUTE;
93  case VK_HELP: return SDL_SCANCODE_HELP;
94  case VK_PAUSE: return SDL_SCANCODE_PAUSE;
95  case VK_NUMLOCK: return SDL_SCANCODE_NUMLOCKCLEAR;
96 
97  case VK_F13: return SDL_SCANCODE_F13;
98  case VK_F14: return SDL_SCANCODE_F14;
99  case VK_F15: return SDL_SCANCODE_F15;
100  case VK_F16: return SDL_SCANCODE_F16;
101  case VK_F17: return SDL_SCANCODE_F17;
102  case VK_F18: return SDL_SCANCODE_F18;
103  case VK_F19: return SDL_SCANCODE_F19;
104  case VK_F20: return SDL_SCANCODE_F20;
105  case VK_F21: return SDL_SCANCODE_F21;
106  case VK_F22: return SDL_SCANCODE_F22;
107  case VK_F23: return SDL_SCANCODE_F23;
108  case VK_F24: return SDL_SCANCODE_F24;
109 
110  case VK_OEM_NEC_EQUAL: return SDL_SCANCODE_KP_EQUALS;
111  case VK_BROWSER_BACK: return SDL_SCANCODE_AC_BACK;
112  case VK_BROWSER_FORWARD: return SDL_SCANCODE_AC_FORWARD;
113  case VK_BROWSER_REFRESH: return SDL_SCANCODE_AC_REFRESH;
114  case VK_BROWSER_STOP: return SDL_SCANCODE_AC_STOP;
115  case VK_BROWSER_SEARCH: return SDL_SCANCODE_AC_SEARCH;
116  case VK_BROWSER_FAVORITES: return SDL_SCANCODE_AC_BOOKMARKS;
117  case VK_BROWSER_HOME: return SDL_SCANCODE_AC_HOME;
118  case VK_VOLUME_MUTE: return SDL_SCANCODE_AUDIOMUTE;
119  case VK_VOLUME_DOWN: return SDL_SCANCODE_VOLUMEDOWN;
120  case VK_VOLUME_UP: return SDL_SCANCODE_VOLUMEUP;
121 
122  case VK_MEDIA_NEXT_TRACK: return SDL_SCANCODE_AUDIONEXT;
123  case VK_MEDIA_PREV_TRACK: return SDL_SCANCODE_AUDIOPREV;
124  case VK_MEDIA_STOP: return SDL_SCANCODE_AUDIOSTOP;
125  case VK_MEDIA_PLAY_PAUSE: return SDL_SCANCODE_AUDIOPLAY;
126  case VK_LAUNCH_MAIL: return SDL_SCANCODE_MAIL;
127  case VK_LAUNCH_MEDIA_SELECT: return SDL_SCANCODE_MEDIASELECT;
128 
130 
131  case VK_ATTN: return SDL_SCANCODE_SYSREQ;
132  case VK_CRSEL: return SDL_SCANCODE_CRSEL;
133  case VK_EXSEL: return SDL_SCANCODE_EXSEL;
134  case VK_OEM_CLEAR: return SDL_SCANCODE_CLEAR;
135 
136  case VK_LAUNCH_APP1: return SDL_SCANCODE_APP1;
137  case VK_LAUNCH_APP2: return SDL_SCANCODE_APP2;
138 
139  default: return SDL_SCANCODE_UNKNOWN;
140  }
141 }
142 
143 static SDL_Scancode
144 WindowsScanCodeToSDLScanCode(LPARAM lParam, WPARAM wParam)
145 {
146  SDL_Scancode code;
147  int nScanCode = (lParam >> 16) & 0xFF;
148  SDL_bool bIsExtended = (lParam & (1 << 24)) != 0;
149 
150  code = VKeytoScancode(wParam);
151 
152  if (code == SDL_SCANCODE_UNKNOWN && nScanCode <= 127) {
153  code = windows_scancode_table[nScanCode];
154 
155  if (bIsExtended) {
156  switch (code) {
157  case SDL_SCANCODE_RETURN:
158  code = SDL_SCANCODE_KP_ENTER;
159  break;
160  case SDL_SCANCODE_LALT:
161  code = SDL_SCANCODE_RALT;
162  break;
163  case SDL_SCANCODE_LCTRL:
164  code = SDL_SCANCODE_RCTRL;
165  break;
166  case SDL_SCANCODE_SLASH:
167  code = SDL_SCANCODE_KP_DIVIDE;
168  break;
170  code = SDL_SCANCODE_KP_PLUS;
171  break;
172  default:
173  break;
174  }
175  } else {
176  switch (code) {
177  case SDL_SCANCODE_HOME:
178  code = SDL_SCANCODE_KP_7;
179  break;
180  case SDL_SCANCODE_UP:
181  code = SDL_SCANCODE_KP_8;
182  break;
183  case SDL_SCANCODE_PAGEUP:
184  code = SDL_SCANCODE_KP_9;
185  break;
186  case SDL_SCANCODE_LEFT:
187  code = SDL_SCANCODE_KP_4;
188  break;
189  case SDL_SCANCODE_RIGHT:
190  code = SDL_SCANCODE_KP_6;
191  break;
192  case SDL_SCANCODE_END:
193  code = SDL_SCANCODE_KP_1;
194  break;
195  case SDL_SCANCODE_DOWN:
196  code = SDL_SCANCODE_KP_2;
197  break;
199  code = SDL_SCANCODE_KP_3;
200  break;
201  case SDL_SCANCODE_INSERT:
202  code = SDL_SCANCODE_KP_0;
203  break;
204  case SDL_SCANCODE_DELETE:
205  code = SDL_SCANCODE_KP_PERIOD;
206  break;
209  break;
210  default:
211  break;
212  }
213  }
214  }
215  return code;
216 }
217 
218 static SDL_bool
219 WIN_ShouldIgnoreFocusClick()
220 {
222 }
223 
224 static void
225 WIN_CheckWParamMouseButton(SDL_bool bwParamMousePressed, SDL_bool bSDLMousePressed, SDL_WindowData *data, Uint8 button, SDL_MouseID mouseID)
226 {
227  if (data->focus_click_pending & SDL_BUTTON(button)) {
228  /* Ignore the button click for activation */
229  if (!bwParamMousePressed) {
230  data->focus_click_pending &= ~SDL_BUTTON(button);
231  if (!data->focus_click_pending) {
233  }
234  }
235  if (WIN_ShouldIgnoreFocusClick()) {
236  return;
237  }
238  }
239 
240  if (bwParamMousePressed && !bSDLMousePressed) {
241  SDL_SendMouseButton(data->window, mouseID, SDL_PRESSED, button);
242  } else if (!bwParamMousePressed && bSDLMousePressed) {
243  SDL_SendMouseButton(data->window, mouseID, SDL_RELEASED, button);
244  }
245 }
246 
247 /*
248 * Some windows systems fail to send a WM_LBUTTONDOWN sometimes, but each mouse move contains the current button state also
249 * so this funciton reconciles our view of the world with the current buttons reported by windows
250 */
251 static void
252 WIN_CheckWParamMouseButtons(WPARAM wParam, SDL_WindowData *data, SDL_MouseID mouseID)
253 {
254  if (wParam != data->mouse_button_flags) {
255  Uint32 mouseFlags = SDL_GetMouseState(NULL, NULL);
256  WIN_CheckWParamMouseButton((wParam & MK_LBUTTON), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, mouseID);
257  WIN_CheckWParamMouseButton((wParam & MK_MBUTTON), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, mouseID);
258  WIN_CheckWParamMouseButton((wParam & MK_RBUTTON), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, mouseID);
259  WIN_CheckWParamMouseButton((wParam & MK_XBUTTON1), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, mouseID);
260  WIN_CheckWParamMouseButton((wParam & MK_XBUTTON2), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, mouseID);
261  data->mouse_button_flags = wParam;
262  }
263 }
264 
265 
266 static void
267 WIN_CheckRawMouseButtons(ULONG rawButtons, SDL_WindowData *data)
268 {
269  if (rawButtons != data->mouse_button_flags) {
270  Uint32 mouseFlags = SDL_GetMouseState(NULL, NULL);
271  if ((rawButtons & RI_MOUSE_BUTTON_1_DOWN))
272  WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_1_DOWN), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, 0);
273  if ((rawButtons & RI_MOUSE_BUTTON_1_UP))
274  WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_1_UP), (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, 0);
275  if ((rawButtons & RI_MOUSE_BUTTON_2_DOWN))
276  WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_2_DOWN), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, 0);
277  if ((rawButtons & RI_MOUSE_BUTTON_2_UP))
278  WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_2_UP), (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, 0);
279  if ((rawButtons & RI_MOUSE_BUTTON_3_DOWN))
280  WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_3_DOWN), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, 0);
281  if ((rawButtons & RI_MOUSE_BUTTON_3_UP))
282  WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_3_UP), (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, 0);
283  if ((rawButtons & RI_MOUSE_BUTTON_4_DOWN))
284  WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_4_DOWN), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, 0);
285  if ((rawButtons & RI_MOUSE_BUTTON_4_UP))
286  WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_4_UP), (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, 0);
287  if ((rawButtons & RI_MOUSE_BUTTON_5_DOWN))
288  WIN_CheckWParamMouseButton((rawButtons & RI_MOUSE_BUTTON_5_DOWN), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, 0);
289  if ((rawButtons & RI_MOUSE_BUTTON_5_UP))
290  WIN_CheckWParamMouseButton(!(rawButtons & RI_MOUSE_BUTTON_5_UP), (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, 0);
291  data->mouse_button_flags = rawButtons;
292  }
293 }
294 
295 static void
296 WIN_CheckAsyncMouseRelease(SDL_WindowData *data)
297 {
298  Uint32 mouseFlags;
299  SHORT keyState;
300 
301  /* mouse buttons may have changed state here, we need to resync them,
302  but we will get a WM_MOUSEMOVE right away which will fix things up if in non raw mode also
303  */
304  mouseFlags = SDL_GetMouseState(NULL, NULL);
305 
306  keyState = GetAsyncKeyState(VK_LBUTTON);
307  if (!(keyState & 0x8000)) {
308  WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_LMASK), data, SDL_BUTTON_LEFT, 0);
309  }
310  keyState = GetAsyncKeyState(VK_RBUTTON);
311  if (!(keyState & 0x8000)) {
312  WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_RMASK), data, SDL_BUTTON_RIGHT, 0);
313  }
314  keyState = GetAsyncKeyState(VK_MBUTTON);
315  if (!(keyState & 0x8000)) {
316  WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_MMASK), data, SDL_BUTTON_MIDDLE, 0);
317  }
318  keyState = GetAsyncKeyState(VK_XBUTTON1);
319  if (!(keyState & 0x8000)) {
320  WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_X1MASK), data, SDL_BUTTON_X1, 0);
321  }
322  keyState = GetAsyncKeyState(VK_XBUTTON2);
323  if (!(keyState & 0x8000)) {
324  WIN_CheckWParamMouseButton(SDL_FALSE, (mouseFlags & SDL_BUTTON_X2MASK), data, SDL_BUTTON_X2, 0);
325  }
326  data->mouse_button_flags = 0;
327 }
328 
329 static BOOL
330 WIN_ConvertUTF32toUTF8(UINT32 codepoint, char * text)
331 {
332  if (codepoint <= 0x7F) {
333  text[0] = (char) codepoint;
334  text[1] = '\0';
335  } else if (codepoint <= 0x7FF) {
336  text[0] = 0xC0 | (char) ((codepoint >> 6) & 0x1F);
337  text[1] = 0x80 | (char) (codepoint & 0x3F);
338  text[2] = '\0';
339  } else if (codepoint <= 0xFFFF) {
340  text[0] = 0xE0 | (char) ((codepoint >> 12) & 0x0F);
341  text[1] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
342  text[2] = 0x80 | (char) (codepoint & 0x3F);
343  text[3] = '\0';
344  } else if (codepoint <= 0x10FFFF) {
345  text[0] = 0xF0 | (char) ((codepoint >> 18) & 0x0F);
346  text[1] = 0x80 | (char) ((codepoint >> 12) & 0x3F);
347  text[2] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
348  text[3] = 0x80 | (char) (codepoint & 0x3F);
349  text[4] = '\0';
350  } else {
351  return SDL_FALSE;
352  }
353  return SDL_TRUE;
354 }
355 
356 static SDL_bool
357 ShouldGenerateWindowCloseOnAltF4(void)
358 {
360 }
361 
362 /* Win10 "Fall Creators Update" introduced the bug that SetCursorPos() (as used by SDL_WarpMouseInWindow())
363  doesn't reliably generate WM_MOUSEMOVE events anymore (see #3931) which breaks relative mouse mode via warping.
364  This is used to implement a workaround.. */
365 static SDL_bool isWin10FCUorNewer = SDL_FALSE;
366 
367 LRESULT CALLBACK
368 WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
369 {
371  LRESULT returnCode = -1;
372 
373  /* Send a SDL_SYSWMEVENT if the application wants them */
375  SDL_SysWMmsg wmmsg;
376 
377  SDL_VERSION(&wmmsg.version);
379  wmmsg.msg.win.hwnd = hwnd;
380  wmmsg.msg.win.msg = msg;
381  wmmsg.msg.win.wParam = wParam;
382  wmmsg.msg.win.lParam = lParam;
383  SDL_SendSysWMEvent(&wmmsg);
384  }
385 
386  /* Get the window data for the window */
387  data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
388  if (!data) {
389  return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
390  }
391 
392 #ifdef WMMSG_DEBUG
393  {
394  char message[1024];
395  if (msg > MAX_WMMSG) {
396  SDL_snprintf(message, sizeof(message), "Received windows message: %p UNKNOWN (%d) -- 0x%X, 0x%X\n", hwnd, msg, wParam, lParam);
397  } else {
398  SDL_snprintf(message, sizeof(message), "Received windows message: %p %s -- 0x%X, 0x%X\n", hwnd, wmtab[msg], wParam, lParam);
399  }
400  OutputDebugStringA(message);
401  }
402 #endif /* WMMSG_DEBUG */
403 
404  if (IME_HandleMessage(hwnd, msg, wParam, &lParam, data->videodata))
405  return 0;
406 
407  switch (msg) {
408 
409  case WM_SHOWWINDOW:
410  {
411  if (wParam) {
413  } else {
415  }
416  }
417  break;
418 
419  case WM_ACTIVATE:
420  {
421  POINT cursorPos;
422  BOOL minimized;
423 
424  minimized = HIWORD(wParam);
425  if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
426  if (LOWORD(wParam) == WA_CLICKACTIVE) {
427  if (GetAsyncKeyState(VK_LBUTTON)) {
429  }
430  if (GetAsyncKeyState(VK_RBUTTON)) {
432  }
433  if (GetAsyncKeyState(VK_MBUTTON)) {
435  }
436  if (GetAsyncKeyState(VK_XBUTTON1)) {
438  }
439  if (GetAsyncKeyState(VK_XBUTTON2)) {
441  }
442  }
443 
445  if (SDL_GetKeyboardFocus() != data->window) {
447  }
448 
449  GetCursorPos(&cursorPos);
450  ScreenToClient(hwnd, &cursorPos);
451  SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
452 
453  WIN_CheckAsyncMouseRelease(data);
454 
455  /*
456  * FIXME: Update keyboard state
457  */
459 
460  SDL_ToggleModState(KMOD_CAPS, (GetKeyState(VK_CAPITAL) & 0x0001) != 0);
461  SDL_ToggleModState(KMOD_NUM, (GetKeyState(VK_NUMLOCK) & 0x0001) != 0);
462  } else {
464 
465  if (SDL_GetKeyboardFocus() == data->window) {
468  }
469 
470  ClipCursor(NULL);
471 
473  }
474  }
475  returnCode = 0;
476  break;
477 
478  case WM_MOUSEMOVE:
479  {
480  SDL_Mouse *mouse = SDL_GetMouse();
481  if (!mouse->relative_mode || mouse->relative_mode_warp) {
482  SDL_MouseID mouseID = (((GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) == MOUSEEVENTF_FROMTOUCH) ? SDL_TOUCH_MOUSEID : 0);
483  SDL_SendMouseMotion(data->window, mouseID, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
484  if (isWin10FCUorNewer && mouseID != SDL_TOUCH_MOUSEID && mouse->relative_mode_warp) {
485  /* To work around #3931, Win10 bug introduced in Fall Creators Update, where
486  SetCursorPos() (SDL_WarpMouseInWindow()) doesn't reliably generate mouse events anymore,
487  after each windows mouse event generate a fake event for the middle of the window
488  if relative_mode_warp is used */
489  int center_x = 0, center_y = 0;
490  SDL_GetWindowSize(data->window, &center_x, &center_y);
491  center_x /= 2;
492  center_y /= 2;
493  SDL_SendMouseMotion(data->window, mouseID, 0, center_x, center_y);
494  }
495  }
496  }
497  /* don't break here, fall through to check the wParam like the button presses */
498  case WM_LBUTTONUP:
499  case WM_RBUTTONUP:
500  case WM_MBUTTONUP:
501  case WM_XBUTTONUP:
502  case WM_LBUTTONDOWN:
503  case WM_LBUTTONDBLCLK:
504  case WM_RBUTTONDOWN:
505  case WM_RBUTTONDBLCLK:
506  case WM_MBUTTONDOWN:
507  case WM_MBUTTONDBLCLK:
508  case WM_XBUTTONDOWN:
509  case WM_XBUTTONDBLCLK:
510  {
511  SDL_Mouse *mouse = SDL_GetMouse();
512  if (!mouse->relative_mode || mouse->relative_mode_warp) {
513  SDL_MouseID mouseID = (((GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) == MOUSEEVENTF_FROMTOUCH) ? SDL_TOUCH_MOUSEID : 0);
514  WIN_CheckWParamMouseButtons(wParam, data, mouseID);
515  }
516  }
517  break;
518 
519  case WM_INPUT:
520  {
521  SDL_Mouse *mouse = SDL_GetMouse();
522  HRAWINPUT hRawInput = (HRAWINPUT)lParam;
523  RAWINPUT inp;
524  UINT size = sizeof(inp);
525  const SDL_bool isRelative = mouse->relative_mode || mouse->relative_mode_warp;
526  const SDL_bool isCapture = ((data->window->flags & SDL_WINDOW_MOUSE_CAPTURE) != 0);
527 
528  if (!isRelative || mouse->focus != data->window) {
529  if (!isCapture) {
530  break;
531  }
532  }
533 
534  GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
535 
536  /* Mouse data */
537  if (inp.header.dwType == RIM_TYPEMOUSE) {
538  if (isRelative) {
539  RAWMOUSE* rawmouse = &inp.data.mouse;
540 
541  if ((rawmouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE) {
542  SDL_SendMouseMotion(data->window, 0, 1, (int)rawmouse->lLastX, (int)rawmouse->lLastY);
543  } else {
544  /* synthesize relative moves from the abs position */
545  static SDL_Point initialMousePoint;
546  if (initialMousePoint.x == 0 && initialMousePoint.y == 0) {
547  initialMousePoint.x = rawmouse->lLastX;
548  initialMousePoint.y = rawmouse->lLastY;
549  }
550 
551  SDL_SendMouseMotion(data->window, 0, 1, (int)(rawmouse->lLastX-initialMousePoint.x), (int)(rawmouse->lLastY-initialMousePoint.y));
552 
553  initialMousePoint.x = rawmouse->lLastX;
554  initialMousePoint.y = rawmouse->lLastY;
555  }
556  WIN_CheckRawMouseButtons(rawmouse->usButtonFlags, data);
557  } else if (isCapture) {
558  /* we check for where Windows thinks the system cursor lives in this case, so we don't really lose mouse accel, etc. */
559  POINT pt;
560  RECT hwndRect;
561  HWND currentHnd;
562 
563  GetCursorPos(&pt);
564  currentHnd = WindowFromPoint(pt);
565  ScreenToClient(hwnd, &pt);
566  GetClientRect(hwnd, &hwndRect);
567 
568  /* if in the window, WM_MOUSEMOVE, etc, will cover it. */
569  if(currentHnd != hwnd || pt.x < 0 || pt.y < 0 || pt.x > hwndRect.right || pt.y > hwndRect.right) {
570  SDL_SendMouseMotion(data->window, 0, 0, (int)pt.x, (int)pt.y);
571  SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_LBUTTON) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_LEFT);
572  SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_RBUTTON) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_RIGHT);
573  SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_MBUTTON) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_MIDDLE);
574  SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_XBUTTON1) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_X1);
575  SDL_SendMouseButton(data->window, 0, GetAsyncKeyState(VK_XBUTTON2) & 0x8000 ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_X2);
576  }
577  } else {
578  SDL_assert(0 && "Shouldn't happen");
579  }
580  }
581  }
582  break;
583 
584  case WM_MOUSEWHEEL:
585  case WM_MOUSEHWHEEL:
586  {
587  short amount = GET_WHEEL_DELTA_WPARAM(wParam);
588  float fAmount = (float) amount / WHEEL_DELTA;
589  if (msg == WM_MOUSEWHEEL)
590  SDL_SendMouseWheel(data->window, 0, 0.0f, fAmount, SDL_MOUSEWHEEL_NORMAL);
591  else
592  SDL_SendMouseWheel(data->window, 0, fAmount, 0.0f, SDL_MOUSEWHEEL_NORMAL);
593  }
594  break;
595 
596 #ifdef WM_MOUSELEAVE
597  case WM_MOUSELEAVE:
598  if (SDL_GetMouseFocus() == data->window && !SDL_GetMouse()->relative_mode && !(data->window->flags & SDL_WINDOW_MOUSE_CAPTURE)) {
599  if (!IsIconic(hwnd)) {
600  POINT cursorPos;
601  GetCursorPos(&cursorPos);
602  ScreenToClient(hwnd, &cursorPos);
603  SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
604  }
606  }
607  returnCode = 0;
608  break;
609 #endif /* WM_MOUSELEAVE */
610 
611  case WM_KEYDOWN:
612  case WM_SYSKEYDOWN:
613  {
614  SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam);
615  const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
616 
617  /* Detect relevant keyboard shortcuts */
618  if (keyboardState[SDL_SCANCODE_LALT] == SDL_PRESSED || keyboardState[SDL_SCANCODE_RALT] == SDL_PRESSED) {
619  /* ALT+F4: Close window */
620  if (code == SDL_SCANCODE_F4 && ShouldGenerateWindowCloseOnAltF4()) {
622  }
623  }
624 
625  if (code != SDL_SCANCODE_UNKNOWN) {
627  }
628  }
629 
630  returnCode = 0;
631  break;
632 
633  case WM_SYSKEYUP:
634  case WM_KEYUP:
635  {
636  SDL_Scancode code = WindowsScanCodeToSDLScanCode(lParam, wParam);
637  const Uint8 *keyboardState = SDL_GetKeyboardState(NULL);
638 
639  if (code != SDL_SCANCODE_UNKNOWN) {
640  if (code == SDL_SCANCODE_PRINTSCREEN &&
641  keyboardState[code] == SDL_RELEASED) {
643  }
645  }
646  }
647  returnCode = 0;
648  break;
649 
650  case WM_UNICHAR:
651  if ( wParam == UNICODE_NOCHAR ) {
652  returnCode = 1;
653  break;
654  }
655  /* otherwise fall through to below */
656  case WM_CHAR:
657  {
658  char text[5];
659  if ( WIN_ConvertUTF32toUTF8( (UINT32)wParam, text ) ) {
660  SDL_SendKeyboardText( text );
661  }
662  }
663  returnCode = 0;
664  break;
665 
666 #ifdef WM_INPUTLANGCHANGE
667  case WM_INPUTLANGCHANGE:
668  {
671  }
672  returnCode = 1;
673  break;
674 #endif /* WM_INPUTLANGCHANGE */
675 
676  case WM_NCLBUTTONDOWN:
677  {
678  data->in_title_click = SDL_TRUE;
679  }
680  break;
681 
682  case WM_CAPTURECHANGED:
683  {
684  data->in_title_click = SDL_FALSE;
685 
686  /* The mouse may have been released during a modal loop */
687  WIN_CheckAsyncMouseRelease(data);
688  }
689  break;
690 
691 #ifdef WM_GETMINMAXINFO
692  case WM_GETMINMAXINFO:
693  {
694  MINMAXINFO *info;
695  RECT size;
696  int x, y;
697  int w, h;
698  int min_w, min_h;
699  int max_w, max_h;
700  BOOL constrain_max_size;
701 
702  if (SDL_IsShapedWindow(data->window))
704 
705  /* If this is an expected size change, allow it */
706  if (data->expected_resize) {
707  break;
708  }
709 
710  /* Get the current position of our window */
711  GetWindowRect(hwnd, &size);
712  x = size.left;
713  y = size.top;
714 
715  /* Calculate current size of our window */
716  SDL_GetWindowSize(data->window, &w, &h);
717  SDL_GetWindowMinimumSize(data->window, &min_w, &min_h);
718  SDL_GetWindowMaximumSize(data->window, &max_w, &max_h);
719 
720  /* Store in min_w and min_h difference between current size and minimal
721  size so we don't need to call AdjustWindowRectEx twice */
722  min_w -= w;
723  min_h -= h;
724  if (max_w && max_h) {
725  max_w -= w;
726  max_h -= h;
727  constrain_max_size = TRUE;
728  } else {
729  constrain_max_size = FALSE;
730  }
731 
733  LONG style = GetWindowLong(hwnd, GWL_STYLE);
734  /* DJM - according to the docs for GetMenu(), the
735  return value is undefined if hwnd is a child window.
736  Apparently it's too difficult for MS to check
737  inside their function, so I have to do it here.
738  */
739  BOOL menu = (style & WS_CHILDWINDOW) ? FALSE : (GetMenu(hwnd) != NULL);
740  size.top = 0;
741  size.left = 0;
742  size.bottom = h;
743  size.right = w;
744 
745  AdjustWindowRectEx(&size, style, menu, 0);
746  w = size.right - size.left;
747  h = size.bottom - size.top;
748  }
749 
750  /* Fix our size to the current size */
751  info = (MINMAXINFO *) lParam;
753  info->ptMinTrackSize.x = w + min_w;
754  info->ptMinTrackSize.y = h + min_h;
755  if (constrain_max_size) {
756  info->ptMaxTrackSize.x = w + max_w;
757  info->ptMaxTrackSize.y = h + max_h;
758  }
759  } else {
760  info->ptMaxSize.x = w;
761  info->ptMaxSize.y = h;
762  info->ptMaxPosition.x = x;
763  info->ptMaxPosition.y = y;
764  info->ptMinTrackSize.x = w;
765  info->ptMinTrackSize.y = h;
766  info->ptMaxTrackSize.x = w;
767  info->ptMaxTrackSize.y = h;
768  }
769  }
770  returnCode = 0;
771  break;
772 #endif /* WM_GETMINMAXINFO */
773 
774  case WM_WINDOWPOSCHANGING:
775 
776  if (data->expected_resize) {
777  returnCode = 0;
778  }
779  break;
780 
781  case WM_WINDOWPOSCHANGED:
782  {
783  RECT rect;
784  int x, y;
785  int w, h;
786 
787  if (data->initializing || data->in_border_change) {
788  break;
789  }
790 
791  if (!GetClientRect(hwnd, &rect) || IsRectEmpty(&rect)) {
792  break;
793  }
794  ClientToScreen(hwnd, (LPPOINT) & rect);
795  ClientToScreen(hwnd, (LPPOINT) & rect + 1);
796 
798 
799  x = rect.left;
800  y = rect.top;
802 
803  w = rect.right - rect.left;
804  h = rect.bottom - rect.top;
806  h);
807 
808  /* Forces a WM_PAINT event */
809  InvalidateRect(hwnd, NULL, FALSE);
810  }
811  break;
812 
813  case WM_SIZE:
814  {
815  switch (wParam) {
816  case SIZE_MAXIMIZED:
821  break;
822  case SIZE_MINIMIZED:
825  break;
826  default:
829  break;
830  }
831  }
832  break;
833 
834  case WM_SETCURSOR:
835  {
836  Uint16 hittest;
837 
838  hittest = LOWORD(lParam);
839  if (hittest == HTCLIENT) {
840  SetCursor(SDL_cursor);
841  returnCode = TRUE;
843  SetCursor(NULL);
844  returnCode = TRUE;
845  }
846  }
847  break;
848 
849  /* We were occluded, refresh our display */
850  case WM_PAINT:
851  {
852  RECT rect;
853  if (GetUpdateRect(hwnd, &rect, FALSE)) {
854  ValidateRect(hwnd, NULL);
856  0, 0);
857  }
858  }
859  returnCode = 0;
860  break;
861 
862  /* We'll do our own drawing, prevent flicker */
863  case WM_ERASEBKGND:
864  {
865  }
866  return (1);
867 
868  case WM_SYSCOMMAND:
869  {
870  if ((wParam & 0xFFF0) == SC_KEYMENU) {
871  return (0);
872  }
873 
874 #if defined(SC_SCREENSAVE) || defined(SC_MONITORPOWER)
875  /* Don't start the screensaver or blank the monitor in fullscreen apps */
876  if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
877  (wParam & 0xFFF0) == SC_MONITORPOWER) {
878  if (SDL_GetVideoDevice()->suspend_screensaver) {
879  return (0);
880  }
881  }
882 #endif /* System has screensaver support */
883  }
884  break;
885 
886  case WM_CLOSE:
887  {
889  }
890  returnCode = 0;
891  break;
892 
893  case WM_TOUCH:
894  if (data->videodata->GetTouchInputInfo && data->videodata->CloseTouchInputHandle) {
895  UINT i, num_inputs = LOWORD(wParam);
896  PTOUCHINPUT inputs = SDL_stack_alloc(TOUCHINPUT, num_inputs);
897  if (data->videodata->GetTouchInputInfo((HTOUCHINPUT)lParam, num_inputs, inputs, sizeof(TOUCHINPUT))) {
898  RECT rect;
899  float x, y;
900 
901  if (!GetClientRect(hwnd, &rect) ||
902  (rect.right == rect.left && rect.bottom == rect.top)) {
903  if (inputs) {
904  SDL_stack_free(inputs);
905  }
906  break;
907  }
908  ClientToScreen(hwnd, (LPPOINT) & rect);
909  ClientToScreen(hwnd, (LPPOINT) & rect + 1);
910  rect.top *= 100;
911  rect.left *= 100;
912  rect.bottom *= 100;
913  rect.right *= 100;
914 
915  for (i = 0; i < num_inputs; ++i) {
916  PTOUCHINPUT input = &inputs[i];
917 
918  const SDL_TouchID touchId = (SDL_TouchID)((size_t)input->hSource);
919  if (SDL_AddTouch(touchId, "") < 0) {
920  continue;
921  }
922 
923  /* Get the normalized coordinates for the window */
924  x = (float)(input->x - rect.left)/(rect.right - rect.left);
925  y = (float)(input->y - rect.top)/(rect.bottom - rect.top);
926 
927  if (input->dwFlags & TOUCHEVENTF_DOWN) {
928  SDL_SendTouch(touchId, input->dwID, SDL_TRUE, x, y, 1.0f);
929  }
930  if (input->dwFlags & TOUCHEVENTF_MOVE) {
931  SDL_SendTouchMotion(touchId, input->dwID, x, y, 1.0f);
932  }
933  if (input->dwFlags & TOUCHEVENTF_UP) {
934  SDL_SendTouch(touchId, input->dwID, SDL_FALSE, x, y, 1.0f);
935  }
936  }
937  }
938  SDL_stack_free(inputs);
939 
940  data->videodata->CloseTouchInputHandle((HTOUCHINPUT)lParam);
941  return 0;
942  }
943  break;
944 
945  case WM_DROPFILES:
946  {
947  UINT i;
948  HDROP drop = (HDROP) wParam;
949  UINT count = DragQueryFile(drop, 0xFFFFFFFF, NULL, 0);
950  for (i = 0; i < count; ++i) {
951  UINT size = DragQueryFile(drop, i, NULL, 0) + 1;
952  LPTSTR buffer = SDL_stack_alloc(TCHAR, size);
953  if (buffer) {
954  if (DragQueryFile(drop, i, buffer, size)) {
955  char *file = WIN_StringToUTF8(buffer);
956  SDL_SendDropFile(data->window, file);
957  SDL_free(file);
958  }
959  SDL_stack_free(buffer);
960  }
961  }
963  DragFinish(drop);
964  return 0;
965  }
966  break;
967 
968  case WM_NCCALCSIZE:
969  {
970  Uint32 window_flags = SDL_GetWindowFlags(data->window);
971  if (wParam == TRUE && (window_flags & SDL_WINDOW_BORDERLESS) && !(window_flags & SDL_WINDOW_FULLSCREEN)) {
972  /* When borderless, need to tell windows that the size of the non-client area is 0 */
973  if (!(window_flags & SDL_WINDOW_RESIZABLE)) {
974  int w, h;
975  NCCALCSIZE_PARAMS *params = (NCCALCSIZE_PARAMS *)lParam;
976  w = data->window->windowed.w;
977  h = data->window->windowed.h;
978  params->rgrc[0].right = params->rgrc[0].left + w;
979  params->rgrc[0].bottom = params->rgrc[0].top + h;
980  }
981  return 0;
982  }
983  }
984  break;
985 
986  case WM_NCHITTEST:
987  {
988  SDL_Window *window = data->window;
989  if (window->hit_test) {
990  POINT winpoint = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
991  if (ScreenToClient(hwnd, &winpoint)) {
992  const SDL_Point point = { (int) winpoint.x, (int) winpoint.y };
993  const SDL_HitTestResult rc = window->hit_test(window, &point, window->hit_test_data);
994  switch (rc) {
995  #define POST_HIT_TEST(ret) { SDL_SendWindowEvent(data->window, SDL_WINDOWEVENT_HIT_TEST, 0, 0); return ret; }
996  case SDL_HITTEST_DRAGGABLE: POST_HIT_TEST(HTCAPTION);
997  case SDL_HITTEST_RESIZE_TOPLEFT: POST_HIT_TEST(HTTOPLEFT);
998  case SDL_HITTEST_RESIZE_TOP: POST_HIT_TEST(HTTOP);
999  case SDL_HITTEST_RESIZE_TOPRIGHT: POST_HIT_TEST(HTTOPRIGHT);
1000  case SDL_HITTEST_RESIZE_RIGHT: POST_HIT_TEST(HTRIGHT);
1001  case SDL_HITTEST_RESIZE_BOTTOMRIGHT: POST_HIT_TEST(HTBOTTOMRIGHT);
1002  case SDL_HITTEST_RESIZE_BOTTOM: POST_HIT_TEST(HTBOTTOM);
1003  case SDL_HITTEST_RESIZE_BOTTOMLEFT: POST_HIT_TEST(HTBOTTOMLEFT);
1004  case SDL_HITTEST_RESIZE_LEFT: POST_HIT_TEST(HTLEFT);
1005  #undef POST_HIT_TEST
1006  case SDL_HITTEST_NORMAL: return HTCLIENT;
1007  }
1008  }
1009  /* If we didn't return, this will call DefWindowProc below. */
1010  }
1011  }
1012  break;
1013  }
1014 
1015  /* If there's a window proc, assume it's going to handle messages */
1016  if (data->wndproc) {
1017  return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
1018  } else if (returnCode >= 0) {
1019  return returnCode;
1020  } else {
1021  return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
1022  }
1023 }
1024 
1025 /* A message hook called before TranslateMessage() */
1026 static SDL_WindowsMessageHook g_WindowsMessageHook = NULL;
1027 static void *g_WindowsMessageHookData = NULL;
1028 
1030 {
1031  g_WindowsMessageHook = callback;
1032  g_WindowsMessageHookData = userdata;
1033 }
1034 
1035 void
1037 {
1038  const Uint8 *keystate;
1039  MSG msg;
1040  DWORD start_ticks = GetTickCount();
1041 
1043  while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
1044  if (g_WindowsMessageHook) {
1045  g_WindowsMessageHook(g_WindowsMessageHookData, msg.hwnd, msg.message, msg.wParam, msg.lParam);
1046  }
1047 
1048  /* Always translate the message in case it's a non-SDL window (e.g. with Qt integration) */
1049  TranslateMessage(&msg);
1050  DispatchMessage(&msg);
1051 
1052  /* Make sure we don't busy loop here forever if there are lots of events coming in */
1053  if (SDL_TICKS_PASSED(msg.time, start_ticks)) {
1054  break;
1055  }
1056  }
1057  }
1058 
1059  /* Windows loses a shift KEYUP event when you have both pressed at once and let go of one.
1060  You won't get a KEYUP until both are released, and that keyup will only be for the second
1061  key you released. Take heroic measures and check the keystate as of the last handled event,
1062  and if we think a key is pressed when Windows doesn't, unstick it in SDL's state. */
1063  keystate = SDL_GetKeyboardState(NULL);
1064  if ((keystate[SDL_SCANCODE_LSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
1066  }
1067  if ((keystate[SDL_SCANCODE_RSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
1069  }
1070 }
1071 
1072 /* to work around #3931, a bug introduced in Win10 Fall Creators Update (build nr. 16299)
1073  we need to detect the windows version. this struct and the function below does that.
1074  usually this struct and the corresponding function (RtlGetVersion) are in <Ntddk.h>
1075  but here we just load it dynamically */
1076 struct SDL_WIN_OSVERSIONINFOW {
1077  ULONG dwOSVersionInfoSize;
1078  ULONG dwMajorVersion;
1079  ULONG dwMinorVersion;
1080  ULONG dwBuildNumber;
1081  ULONG dwPlatformId;
1082  WCHAR szCSDVersion[128];
1083 };
1084 
1085 static SDL_bool
1086 IsWin10FCUorNewer(void)
1087 {
1088  HMODULE handle = GetModuleHandleW(L"ntdll.dll");
1089  if (handle) {
1090  typedef LONG(WINAPI* RtlGetVersionPtr)(struct SDL_WIN_OSVERSIONINFOW*);
1091  RtlGetVersionPtr getVersionPtr = (RtlGetVersionPtr)GetProcAddress(handle, "RtlGetVersion");
1092  if (getVersionPtr != NULL) {
1093  struct SDL_WIN_OSVERSIONINFOW info;
1094  SDL_zero(info);
1095  info.dwOSVersionInfoSize = sizeof(info);
1096  if (getVersionPtr(&info) == 0) { /* STATUS_SUCCESS == 0 */
1097  if ( (info.dwMajorVersion == 10 && info.dwMinorVersion == 0 && info.dwBuildNumber >= 16299)
1098  || (info.dwMajorVersion == 10 && info.dwMinorVersion > 0)
1099  || (info.dwMajorVersion > 10) )
1100  {
1101  return SDL_TRUE;
1102  }
1103  }
1104  }
1105  }
1106  return SDL_FALSE;
1107 }
1108 
1109 static int app_registered = 0;
1110 LPTSTR SDL_Appname = NULL;
1111 Uint32 SDL_Appstyle = 0;
1112 HINSTANCE SDL_Instance = NULL;
1113 
1114 /* Register the class for this application */
1115 int
1116 SDL_RegisterApp(char *name, Uint32 style, void *hInst)
1117 {
1118  const char *hint;
1119  WNDCLASSEX wcex;
1120  TCHAR path[MAX_PATH];
1121 
1122  /* Only do this once... */
1123  if (app_registered) {
1124  ++app_registered;
1125  return (0);
1126  }
1127  if (!name && !SDL_Appname) {
1128  name = "SDL_app";
1129 #if defined(CS_BYTEALIGNCLIENT) || defined(CS_OWNDC)
1130  SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
1131 #endif
1132  SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
1133  }
1134 
1135  if (name) {
1136  SDL_Appname = WIN_UTF8ToString(name);
1137  SDL_Appstyle = style;
1138  SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
1139  }
1140 
1141  /* Register the application class */
1142  wcex.cbSize = sizeof(WNDCLASSEX);
1143  wcex.hCursor = NULL;
1144  wcex.hIcon = NULL;
1145  wcex.hIconSm = NULL;
1146  wcex.lpszMenuName = NULL;
1147  wcex.lpszClassName = SDL_Appname;
1148  wcex.style = SDL_Appstyle;
1149  wcex.hbrBackground = NULL;
1150  wcex.lpfnWndProc = WIN_WindowProc;
1151  wcex.hInstance = SDL_Instance;
1152  wcex.cbClsExtra = 0;
1153  wcex.cbWndExtra = 0;
1154 
1156  if (hint && *hint) {
1157  wcex.hIcon = LoadIcon(SDL_Instance, MAKEINTRESOURCE(SDL_atoi(hint)));
1158 
1160  if (hint && *hint) {
1161  wcex.hIconSm = LoadIcon(SDL_Instance, MAKEINTRESOURCE(SDL_atoi(hint)));
1162  }
1163  } else {
1164  /* Use the first icon as a default icon, like in the Explorer */
1165  GetModuleFileName(SDL_Instance, path, MAX_PATH);
1166  ExtractIconEx(path, 0, &wcex.hIcon, &wcex.hIconSm, 1);
1167  }
1168 
1169  if (!RegisterClassEx(&wcex)) {
1170  return SDL_SetError("Couldn't register application class");
1171  }
1172 
1173  isWin10FCUorNewer = IsWin10FCUorNewer();
1174 
1175  app_registered = 1;
1176  return 0;
1177 }
1178 
1179 /* Unregisters the windowclass registered in SDL_RegisterApp above. */
1180 void
1182 {
1183  WNDCLASSEX wcex;
1184 
1185  /* SDL_RegisterApp might not have been called before */
1186  if (!app_registered) {
1187  return;
1188  }
1189  --app_registered;
1190  if (app_registered == 0) {
1191  /* Check for any registered window classes. */
1192  if (GetClassInfoEx(SDL_Instance, SDL_Appname, &wcex)) {
1193  UnregisterClass(SDL_Appname, SDL_Instance);
1194  if (wcex.hIcon) DestroyIcon(wcex.hIcon);
1195  if (wcex.hIconSm) DestroyIcon(wcex.hIconSm);
1196  }
1197  SDL_free(SDL_Appname);
1198  SDL_Appname = NULL;
1199  }
1200 }
1201 
1202 #endif /* SDL_VIDEO_DRIVER_WINDOWS */
1203 
1204 /* vi: set ts=4 sw=4 expandtab: */
SDL_version version
Definition: SDL_syswm.h:137
HINSTANCE SDL_Instance
#define WIN_UTF8ToString(S)
Definition: SDL_windows.h:47
SDL_Mouse * SDL_GetMouse(void)
Definition: SDL_mouse.c:112
SDL_bool g_WindowFrameUsableWhileCursorHidden
#define SDL_HINT_WINDOWS_INTRESOURCE_ICON
A variable to specify custom icon resource id from RC file on Windows platform.
Definition: SDL_hints.h:240
#define SDL_IsShapedWindow
SDL_Texture * button
void SDL_SetKeyboardFocus(SDL_Window *window)
Definition: SDL_keyboard.c:630
int Win32_ResizeWindowShape(SDL_Window *window)
#define SDL_BUTTON_RMASK
Definition: SDL_mouse.h:289
void * hit_test_data
Definition: SDL_sysvideo.h:107
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1574
GLuint GLsizei const GLchar * message
SDL_bool relative_mode_warp
Definition: SDL_mouse_c.h:88
SDL_Window * focus
Definition: SDL_mouse_c.h:77
GLuint GLuint GLsizei count
Definition: SDL_opengl.h:1571
SDL_Rect rect
Definition: testrelative.c:27
int SDL_SendDropFile(SDL_Window *window, const char *file)
#define SDL_BUTTON_X2MASK
Definition: SDL_mouse.h:291
LRESULT CALLBACK WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
GLfloat GLfloat GLfloat GLfloat h
#define SDL_BUTTON_RIGHT
Definition: SDL_mouse.h:284
The structure that defines a point.
Definition: SDL_rect.h:48
void WIN_ResetDeadKeys(void)
#define SDL_GetHint
#define SDL_GetWindowFlags
int SDL_SendTouch(SDL_TouchID id, SDL_FingerID fingerid, SDL_bool down, float x, float y, float pressure)
Definition: SDL_touch.c:222
SDL_bool expected_resize
#define SDL_ENABLE
Definition: SDL_events.h:722
LPTSTR SDL_Appname
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
int SDL_SendWindowEvent(SDL_Window *window, Uint8 windowevent, int data1, int data2)
SDL_Window * window
#define SDL_BUTTON_X1
Definition: SDL_mouse.h:285
void SDL_SetMouseFocus(SDL_Window *window)
Definition: SDL_mouse.c:151
#define SDL_GetKeyboardFocus
uint32_t Uint32
Definition: SDL_stdinc.h:181
#define SDL_TOUCH_MOUSEID
Definition: SDL_touch.h:53
union SDL_SysWMmsg::@16 msg
SDL_Rect windowed
Definition: SDL_sysvideo.h:87
#define TOUCHEVENTF_MOVE
SDL_bool g_WindowsEnableMessageLoop
int SDL_SendDropComplete(SDL_Window *window)
int SDL_SendSysWMEvent(SDL_SysWMmsg *message)
Definition: SDL_events.c:933
GLuint const GLchar * name
Uint32 SDL_MouseID
Definition: SDL_mouse_c.h:28
int SDL_SendKeyboardKey(Uint8 state, SDL_Scancode scancode)
Definition: SDL_keyboard.c:679
int SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid, float x, float y, float pressure)
Definition: SDL_touch.c:284
#define SDL_GetHintBoolean
#define SDL_VERSION(x)
Macro to determine SDL version program was compiled against.
Definition: SDL_version.h:79
SDL_HitTestResult
Possible return values from the SDL_HitTest callback.
Definition: SDL_video.h:993
int x
Definition: SDL_rect.h:50
void SDL_UnregisterApp(void)
#define SDL_GetWindowSize
SDL_bool in_border_change
GLenum GLenum GLenum input
#define SDL_GetEventState(type)
Definition: SDL_events.h:735
EGLImageKHR EGLint EGLint * handle
Definition: eglext.h:937
#define SDL_GetKeyboardState
int SDL_SendMouseMotion(SDL_Window *window, SDL_MouseID mouseID, int relative, int x, int y)
Definition: SDL_mouse.c:237
#define SDL_BUTTON_LEFT
Definition: SDL_mouse.h:282
int y
Definition: SDL_rect.h:51
#define _THIS
struct SDL_VideoData * videodata
uint8_t Uint8
Definition: SDL_stdinc.h:157
int SDL_SendKeyboardText(const char *text)
Definition: SDL_keyboard.c:789
#define SDL_free
#define SDL_stack_alloc(type, count)
Definition: SDL_stdinc.h:354
#define TRUE
Definition: edid-parse.c:33
SDL_bool relative_mode
Definition: SDL_mouse_c.h:87
#define SDL_BUTTON_X1MASK
Definition: SDL_mouse.h:290
GLubyte GLubyte GLubyte GLubyte w
void WIN_UpdateClipCursor(SDL_Window *window)
#define WIN_StringToUTF8(S)
Definition: SDL_windows.h:46
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
Sint64 SDL_TouchID
Definition: SDL_touch.h:41
static Uint32 callback(Uint32 interval, void *param)
Definition: testtimer.c:34
#define SDL_BUTTON_LMASK
Definition: SDL_mouse.h:287
#define SDL_BUTTON_MIDDLE
Definition: SDL_mouse.h:283
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1574
#define SDL_GetWindowMinimumSize
int SDL_AddTouch(SDL_TouchID touchID, const char *name)
Definition: SDL_touch.c:136
int w
Definition: SDL_rect.h:67
BOOL(WINAPI *CloseTouchInputHandle)(HTOUCHINPUT)
#define SDL_atoi
GLsizeiptr size
#define TOUCHEVENTF_DOWN
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
void SDL_ToggleModState(const SDL_Keymod modstate, const SDL_bool toggle)
Definition: SDL_keyboard.c:865
#define SDL_assert(condition)
Definition: SDL_assert.h:169
SDL_SYSWM_TYPE subsystem
Definition: SDL_syswm.h:138
#define NULL
Definition: begin_code.h:164
SDL_bool
Definition: SDL_stdinc.h:139
GLuint buffer
int SDL_SendMouseWheel(SDL_Window *window, SDL_MouseID mouseID, float x, float y, SDL_MouseWheelDirection direction)
Definition: SDL_mouse.c:512
#define SDL_GetMouseFocus
SDL_HitTest hit_test
Definition: SDL_sysvideo.h:106
#define SDL_HINT_WINDOWS_INTRESOURCE_ICON_SMALL
Definition: SDL_hints.h:241
void WIN_UpdateKeymap(void)
#define SDL_SetError
static char text[MAX_TEXT_LENGTH]
Definition: testime.c:47
void WIN_PumpEvents(_THIS)
int SDL_SendKeymapChangedEvent(void)
Definition: SDL_events.c:950
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
static const SDL_Scancode windows_scancode_table[]
int h
Definition: SDL_rect.h:67
The type used to identify a window.
Definition: SDL_sysvideo.h:73
const GLfloat * params
uint16_t Uint16
Definition: SDL_stdinc.h:169
void(* SDL_WindowsMessageHook)(void *userdata, void *hWnd, unsigned int message, Uint64 wParam, Sint64 lParam)
Set a function that is called for every windows message, before TranslateMessage() ...
Definition: SDL_system.h:49
SDL_VideoDevice * SDL_GetVideoDevice(void)
Definition: SDL_video.c:586
#define SDL_GetWindowMaximumSize
#define SDL_snprintf
#define SDL_BUTTON(X)
Definition: SDL_mouse.h:281
SDL_bool in_window_deactivation
#define VK_OEM_102
Definition: SDL_vkeys.h:74
GLsizei const GLchar *const * path
char * wmtab[]
Definition: wmmsg.h:24
void SDL_SetWindowsMessageHook(SDL_WindowsMessageHook callback, void *userdata)
#define SDL_PRESSED
Definition: SDL_events.h:50
#define SDL_stack_free(data)
Definition: SDL_stdinc.h:355
void WIN_CheckClipboardUpdate(struct SDL_VideoData *data)
#define SDL_BUTTON_X2
Definition: SDL_mouse.h:286
#define FALSE
Definition: edid-parse.c:34
Uint32 flags
Definition: SDL_sysvideo.h:83
#define SDL_TICKS_PASSED(A, B)
Compare SDL ticks values, and return true if A has passed B.
Definition: SDL_timer.h:56
HCURSOR SDL_cursor
#define SDL_RELEASED
Definition: SDL_events.h:49
#define SDL_BUTTON_MMASK
Definition: SDL_mouse.h:288
#define SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH
Allow mouse click events when clicking to focus an SDL window.
Definition: SDL_hints.h:295
#define MAX_WMMSG
Definition: wmmsg.h:22
#define TOUCHEVENTF_UP
int SDL_SendMouseButton(SDL_Window *window, SDL_MouseID mouseID, Uint8 state, Uint8 button)
Definition: SDL_mouse.c:506
SDL_Scancode
The SDL keyboard scancode representation.
Definition: SDL_scancode.h:43
#define SDL_GetMouseState
int SDL_RegisterApp(char *name, Uint32 style, void *hInst)
SDL_bool in_title_click
#define SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4
Tell SDL not to generate window-close events for Alt+F4 on Windows.
Definition: SDL_hints.h:800
SDL_bool IME_HandleMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM *lParam, struct SDL_VideoData *videodata)
Uint32 SDL_Appstyle