DXGKDDI_SETALLOCATIONBACKINGSTORE callback function (d3dkmddi.h)
DXGKDDI_SETALLOCATIONBACKINGSTORE obtains the system space address to a graphics allocation backing store.
Syntax
DXGKDDI_SETALLOCATIONBACKINGSTORE DxgkddiSetallocationbackingstore;
NTSTATUS DxgkddiSetallocationbackingstore(
IN_CONST_HANDLE hAdapter,
IN_CONST_PDXGKARG_SETALLOCATIONBACKINGSTORE pArgs
)
{...}
Parameters
hAdapter
[in] Handle to the miniport's context.
pArgs
[in] Pointer to a DXGKARG_SETALLOCATIONBACKINGSTORE structure that contains additional arguments for this function.
Return value
Return STATUS_SUCCESS if the operation succeeds. Otherwise, return an appropriate NTSTATUS Values error code.
Remarks
The address that pBackingStore points to is valid until the allocation is destroyed by DXGKDDI_DESTROYALLOCATION.
DXGKDDI_SETALLOCATIONBACKINGSTORE is called during D3DKMTCreateAllocation.
See Sharing the backing store with KMD for more information.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 11 (WDDM 3.0) |
| Header | d3dkmddi.h |
| IRQL | PASSIVE_LEVEL |