c++ - IDXGISwapChain::CheckInterfaceSupport 返回的结果不能

Question

根据IDXGIAdapter::CheckInterfaceSupport documentation如果支持传入的接口(interface)，则返回 S_OK，否则返回 DXGI_ERROR_UNSUPPORTED。代码片段:

for( size_t i = 0; i < GInterface::m_Adapters.size(); i++)
{
    hr = GInterface::m_Adapters.at(i)->CheckInterfaceSupport(__uuidof(ID3D11Device), (LARGE_INTEGER*)&umdVersion);
    printf( "***D3D11 %sSUPPORTED FOR ADAPTER %d (%d)",
            (hr != DXGI_ERROR_UNSUPPORTED) ? "" : "NOT ",
            i,
            umdVersion);
}

控制台始终打印NOT，但如果我更改为__uuidof(ID3D10Device)，则不会。
但我绝对知道我的 GPU 支持 DirectX11，因为:

1. 我目前正在编写的程序正在使用 DirectX 11 并且它正在运行
2. 我的 GPU:GTX 970，不是最新的，但是......应该支持 D3D11 :D

请有人把事情弄清楚我有点恼火，谢谢。

Answer 1

在 IDXGIAdapter:CheckInterfaceSupport 的“备注”部分(强调我的):

Note You can use CheckInterfaceSupport only to check whether a Direct3D 10.x interface is supported, and only on Windows Vista SP1 and later versions of the operating system. If you try to use CheckInterfaceSupport to check whether a Direct3D 11.x and later version interface is supported, CheckInterfaceSupport returns DXGI_ERROR_UNSUPPORTED. Therefore, do not use CheckInterfaceSupport. Instead, to verify whether the operating system supports a particular interface, try to create the interface. For example, if you call the ID3D11Device::CreateBlendState method and it fails, the operating system does not support the ID3D11BlendState interface.