[PATCH v2] wined3d: Validate window before setting fullscreen mode

[Józef Kucia]

On Mon, Aug 27, 2018 at 10:03 PM Andrew Eikum <aeikum at codeweavers.com> wrote:
> @@ -1427,6 +1435,10 @@ HRESULT CDECL wined3d_swapchain_set_fullscreen(struct wined3d_swapchain *swapcha
>      {
>          /* Fullscreen -> windowed switch */
>          RECT *window_rect = NULL;
> +
> +        if (!IsWindow(swapchain->device_window))
> +            return WINED3DERR_NOTAVAILABLE;
> +
>          if (swapchain->desc.flags & WINED3D_SWAPCHAIN_RESTORE_WINDOW_RECT)
>              window_rect = &swapchain->original_window_rect;
>          wined3d_device_restore_fullscreen_window(device, swapchain->device_window, window_rect);

I haven't reviewed the patch in detail, but the quick test shows that
it should be possible to leave the fullscreen mode when the window is
destroyed. S_OK is returned in this case.