SDL2 and Qt Development

??SDL2???
???SDL2???
??Linux Cnetos 6.6 ??Qt 5.4???SDL2???
???SDL2???
SDL_Window* window = SDL_CreateWindowFrom((void*)ptr_gfx->winId());
SDL_Renderer* render = SDL_CreateRenderer(window, -1,0);
//render = SDL_CreateRenderer(window,-1,SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
???SDL2?X11???Qt for Linux???
void SDL_HideWindow(SDL_Window * window)
{
CHECK_WINDOW_MAGIC(window, );

if (!(window->flags & SDL_WINDOW_SHOWN)) {
    return;
}

/* SDL_UpdateFullscreenMode(window, SDL_FALSE);

if (_this->HideWindow) {
    _this->HideWindow(_this, window);
}
SDL_SendWindowEvent(window, SDL_WINDOWEVENT_HIDDEN, 0, 0);*/

?
}