DXGKCB_DESTROYCONTEXTALLOCATION callback function (d3dkmddi.h)
DXGKCB_DESTROYCONTEXTALLOCATION frees a resource that was previously allocated for a GPU or device-specific context.
Syntax
DXGKCB_DESTROYCONTEXTALLOCATION DxgkcbDestroycontextallocation;
NTSTATUS DxgkcbDestroycontextallocation(
[in] IN_CONST_HANDLE hAdapter,
[in] IN_CONST_HANDLE hAllocation
)
{...}
Parameters
[in] hAdapter
Handle to the graphics adapter for which the allocation was created. The display miniport driver receives the handle from the DeviceHandle member of the DXGKRNL_INTERFACE structure in a call to its DxgkDdiStartDevice function.
[in] hAllocation
Handle that was assigned by the DirectX graphics subsystem (Dxgkrnl) to the context allocation. The display miniport driver receives the handle from the hAllocation member of the DXGKARGCB_CREATECONTEXTALLOCATION structure in a call to the DXGKCB_CREATECONTEXTALLOCATION function.
Return value
DXGKCB_DESTROYCONTEXTALLOCATION returns STATUS_SUCCESS if it succeeds. Otherwise, it returns one of the error codes defined in Ntstatus.h.
Remarks
The display miniport driver calls DXGKCB_CREATECONTEXTALLOCATION to allocate a context resource. After such a call, the driver can call DXGKCB_DESTROYCONTEXTALLOCATION at any time to free the resource.
DXGKCB_XXX functions are implemented by Dxgkrnl. To use this callback function, call DxgkCbDestroyContextAllocation via the DXGKRNL_INTERFACE.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8 (WDDM 1.2) |
| Minimum supported server | Windows Server 2012 |
| Target Platform | Desktop |
| Header | d3dkmddi.h (include D3dkmddi.h) |
| IRQL | PASSIVE_LEVEL |
See also
DXGKARGCB_CREATECONTEXTALLOCATION