WindowsDXGI方式屏幕捕获实现主要步骤graphTBA[D3D11CreateDevice]-->B[ID3D11Device]A[D3D11CreateDevice]-->C[ID3D11DeviceContext]B-.QueryInterface.->D[IDXGIDevice]B-.GetParent.->E[IDXGIAdapter]E-.EnumOutputs.->F[IDXG