SDL2 does not show any window

[duwangthefirst]

I'm using the latest SDL2 and build the demo on macOS. When it comes to 05_DecodeAndDisplayVideo.cpp, the SDL does not show any window. Finally I find the solution: (the while loop after initSDL should be like this or else no window will show up)

SDL_Event e;
bool quit = false;
while (!quit){

    // original content in while loop

    while (SDL_PollEvent(&e)){
        if (e.type == SDL_QUIT){
            quit = true;
        }
        if (e.type == SDL_KEYDOWN){
            quit = true;
        }
        if (e.type == SDL_MOUSEBUTTONDOWN){
            quit = true;
        }
    }
}

[duwangthefirst]

nice work!