void PrintEvent(const SDL_Event * event)
{
    switch (event->type) {
    case SDL_WINDOWEVENT:
        switch (event->window.event) {
        case SDL_WINDOWEVENT_SHOWN:
            fprintf(stderr, "Window %d shown", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_HIDDEN:
            fprintf(stderr, "Window %d hidden", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_EXPOSED:
            fprintf(stderr, "Window %d exposed", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_MOVED:
            fprintf(stderr, "Window %d moved to %d,%d",
                    event->window.windowID, event->window.data1,
                    event->window.data2);
            break;
        case SDL_WINDOWEVENT_RESIZED:
            fprintf(stderr, "Window %d resized to %dx%d",
                    event->window.windowID, event->window.data1,
                    event->window.data2);
            break;
        case SDL_WINDOWEVENT_MINIMIZED:
            fprintf(stderr, "Window %d minimized", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_MAXIMIZED:
            fprintf(stderr, "Window %d maximized", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_RESTORED:
            fprintf(stderr, "Window %d restored", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_ENTER:
            fprintf(stderr, "Mouse entered window %d",
                    event->window.windowID);
            break;
        case SDL_WINDOWEVENT_LEAVE:
            fprintf(stderr, "Mouse left window %d", event->window.windowID);
            break;
        case SDL_WINDOWEVENT_FOCUS_GAINED:
            fprintf(stderr, "Window %d gained keyboard focus",
                    event->window.windowID);
            break;
        case SDL_WINDOWEVENT_FOCUS_LOST:
            fprintf(stderr, "Window %d lost keyboard focus",
                    event->window.windowID);
            break;
        case SDL_WINDOWEVENT_CLOSE:
            fprintf(stderr, "Window %d closed", event->window.windowID);
            break;
        default:
            fprintf(stderr, "Window %d got unknown event %d",
                    event->window.windowID, event->window.event);
            break;
        }
        break;
    }
}