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An example of how this bug can be worked around

restore_bug_workaround.cpp (text/plain), 2.12 KB, created by Euank on 2014-04-27 05:30:29 UTC

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Description:

Filename:

MIME Type:

Creator: Euank

Created: 2014-04-27 05:30:29 UTC

Size: 2.12 KB

patch

obsolete

>#include <SDL2/SDL.h>
>
>int main(int argc, char* argv[]){
>  SDL_Init(SDL_INIT_VIDEO);
>  SDL_Window *screen= SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 320, 240, SDL_WINDOW_RESIZABLE);
>  SDL_Renderer *renderer = SDL_CreateRenderer(screen, -1, SDL_RENDERER_PRESENTVSYNC);
>
>
>  /*
>   * This reproduces a simple bug I ran into.
>   * On windows, if you maximize the window this creates,
>   * then minimize it to the taskbar, and then restore it from the taskbar,
>   * you get a completely black screen instead of a screen with a red square
>   * in the upper left. Resizing the window afterwards restores it to working.
>   */
>
>  for(SDL_Event e; e.type!=SDL_QUIT; SDL_PollEvent(&e)){
>      switch(e.type) {
>          case SDL_WINDOWEVENT:
>              switch(e.window.event) {
>                  case SDL_WINDOWEVENT_FOCUS_GAINED:
>                      if(SDL_GetWindowFlags(screen) & SDL_WINDOW_MAXIMIZED) {
>                          SDL_RestoreWindow(screen);
>                          SDL_MaximizeWindow(screen);
>                      }
>                      if(SDL_GetWindowFlags(screen) & SDL_WINDOW_FULLSCREEN_DESKTOP) {
>                          SDL_RestoreWindow(screen);
>                          SDL_SetWindowFullscreen(screen, SDL_WINDOW_FULLSCREEN_DESKTOP);
>                      }
>                      break;
>              }
>              break;
>          case SDL_KEYDOWN:
>              /* f to turn on fullscreen, w to return to windowed */
>              if(e.key.keysym.sym == SDLK_f) {
>                  SDL_SetWindowFullscreen(screen, SDL_WINDOW_FULLSCREEN_DESKTOP);
>              }
>              if(e.key.keysym.sym == SDLK_w) {
>                  SDL_SetWindowFullscreen(screen, 0);
>              }
>              break;
>      }
>
>      SDL_RenderClear(renderer);
>
>      SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
>      SDL_Rect rect = {0,0,10,10};
>      SDL_RenderFillRect(renderer, &rect);
>
>      SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
>      SDL_RenderPresent(renderer);
>      SDL_Delay(10);
>  }
>
>  SDL_DestroyWindow(screen);
>  SDL_Quit();
>  return 0;
>}

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We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.