D3D12_DISCARD_REGION
struct D3D12_DISCARD_REGION  {
}
 - FirstSubresource
uint FirstSubresource;
 Undocumented in source.
- NumRects
uint NumRects;
 Undocumented in source.
- NumSubresources
uint NumSubresources;
 Undocumented in source.
- pRects
D3D12_RECT* pRects;
 Undocumented in source.