DuplicateOutput 报错，为什么会这样？

[wicyn]

hr = dxgiOutput1->DuplicateOutput(d3d11_device_.Get(), dxgi_output_duplication_.GetAddressOf());

std::cout<<(int)hr<<std::endl;
if (FAILED(hr)) {
    /* 0x887a0004: NVIDIA控制面板-->全局设置--首选图形处理器(自动选择) */
    printf("[DXGIScreenCapture] Failed to get duplicate output.\n");
    Destroy();
    return false;
}