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cocoa: Don't crash if moving a message box created before SDL_Init.

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Fixes #5928.
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Ryan C. Gordon 2022-07-26 14:45:26 -04:00
parent f789bc7d5f
commit 218c3dbb34
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GPG key ID: FA148B892AB48044
1 changed files with 6 additions and 0 deletions
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6
src/video/cocoa/SDL_cocoamouse.m
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@ -400,6 +400,12 @@ Cocoa_HandleTitleButtonEvent(_THIS, NSEvent *event)
SDL_Window *window; SDL_Window *window;
NSWindow *nswindow = [event window]; NSWindow *nswindow = [event window];
/* You might land in this function before SDL_Init if showing a message box.
Don't derefence a NULL pointer if that happens. */
if (_this == NULL) {
return;
}
for (window = _this->windows; window; window = window->next) { for (window = _this->windows; window; window = window->next) {
SDL_WindowData *data = (__bridge SDL_WindowData *)window->driverdata; SDL_WindowData *data = (__bridge SDL_WindowData *)window->driverdata;
if (data && data.nswindow == nswindow) { if (data && data.nswindow == nswindow) {