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Update the cursor clipping each frame, in case it was stolen by another application.

This commit is contained in:
Sam Lantinga 2018-08-26 20:37:23 -07:00
parent 15b3794f11
commit a1ca84411e
1 changed files with 17 additions and 6 deletions
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23
src/video/windows/SDL_windowsevents.c
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@ -399,11 +399,6 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
}
#endif /* WMMSG_DEBUG */
/* Update the clipping rect in case someone else has stolen it */
/* FIXME: Is this function cheap enough to call this frequently?
WIN_UpdateClipCursor(data->window);
*/
if (IME_HandleMessage(hwnd, msg, wParam, &lParam, data->videodata))
return 0;
@ -478,7 +473,6 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
}
if (GetClipCursor(&rect) && SDL_memcmp(&rect, &data->cursor_clipped_rect, sizeof(rect) == 0)) {
SDL_Log("Windows deactivate, ClipCursor(NULL)\n");
ClipCursor(NULL);
SDL_zero(data->cursor_clipped_rect);
}
@ -1036,6 +1030,20 @@ SDL_Log("Windows deactivate, ClipCursor(NULL)\n");
}
}
static void WIN_UpdateClipCursorForWindows()
{
SDL_VideoDevice *_this = SDL_GetVideoDevice();
SDL_Window *window;
if (_this) {
for (window = _this->windows; window; window = window->next) {
if (window->driverdata) {
WIN_UpdateClipCursor(window);
}
}
}
}
/* A message hook called before TranslateMessage() */
static SDL_WindowsMessageHook g_WindowsMessageHook = NULL;
static void *g_WindowsMessageHookData = NULL;
@ -1081,6 +1089,9 @@ WIN_PumpEvents(_THIS)
if ((keystate[SDL_SCANCODE_RSHIFT] == SDL_PRESSED) && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_RSHIFT);
}
/* Update the clipping rect in case someone else has stolen it */
WIN_UpdateClipCursorForWindows();
}
/* to work around #3931, a bug introduced in Win10 Fall Creators Update (build nr. 16299)