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Am 2016-06-24 um 22:49 schrieb Aaryaman Vasishta:
> +    if (FAILED(hr = IDirect3DRMDevice_QueryInterface(device, &IID_IDirect3DRMDevice3, (void **)&device3)))
> +        return hr;
> +
> +    if (FAILED(hr = IDirect3DRMFrame_QueryInterface(camera, &IID_IDirect3DRMFrame3, (void **)&camera3)))
> +    {
> +        IDirect3DRMDevice3_Release(device3);
> +        return hr;
> +    }
> +    IDirect3DRMDevice_Release(device);
> +    IDirect3DRMFrame_Release(camera);
> +
> +    return d3drm_viewport2_Init(&viewport->IDirect3DRMViewport2_iface, device3, camera3, x, y, width, height);
This has the same problem as the first version of your frame thunks: You get "device3", but then you release "device", to which you don't hold a reference.