// d3dkmddi.h

DXGKDDI_SETALLOCATIONBACKINGSTORE DxgkddiSetallocationbackingstore;

NTSTATUS DxgkddiSetallocationbackingstore(
  IN_CONST_HANDLE hAdapter,
  IN_CONST_PDXGKARG_SETALLOCATIONBACKINGSTORE pArgs
)
{...}
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Windows Driver Kit DDI reference (nc-d3dkmddi-dxgkddi_setallocationbackingstore)

Description

DXGKDDI_SETALLOCATIONBACKINGSTORE obtains the system space address to a graphics allocation backing store.

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.

DXGKDDI_SETALLOCATIONBACKINGSTORE - NtDoc