D3DDDIARG_DISCARD structure (d3dumddi.h)
Defines video display memory that can be discarded because the contents are no longer needed.
Syntax
typedef struct _D3DDDIARG_DISCARD {
HANDLE hResource;
UINT FirstSubResource;
UINT NumSubResources;
const RECT *pRects;
UINT NumRects;
} D3DDDIARG_DISCARD;
Members
hResource
A handle to the resource in which subresources are to be discarded.
FirstSubResource
The index of the first subresource to be discarded.
NumSubResources
The number of subresources to be discarded.
pRects
An array of RECT structures for the rectangles in the resource view to discard. If NULL, the Discard function discards the entire surface.
NumRects
The number of rectangles in the array that the pRects member specifies.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8 |
| Minimum supported server | Windows Server 2012 |
| Header | d3dumddi.h (include D3dumddi.h) |