nc-d3dkmddi-dxgkcb_mapframebufferpointer.md

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NC:d3dkmddi.DXGKCB_MAPFRAMEBUFFERPOINTER	DXGKCB_MAPFRAMEBUFFERPOINTER (d3dkmddi.h)	DXGKCB_MAPFRAMEBUFFERPOINTER obtains a pointer to a subregion of the section object that was created for each physical adapter.	10/13/2021	DXGKCB_MAPFRAMEBUFFERPOINTER callback function	d3dkmddi.h			Windows 10, version 1803 (WDDM 2.4)						PASSIVE_LEVEL								Windows	display	DXGKCB_MAPFRAMEBUFFERPOINTER d3dkmddi/DXGKCB_MAPFRAMEBUFFERPOINTER	apiref	UserDefined	d3dkmddi.h	DXGKCB_MAPFRAMEBUFFERPOINTER

DXGKCB_MAPFRAMEBUFFERPOINTER callback function

-description

DXGKCB_MAPFRAMEBUFFERPOINTER obtains a pointer to a subregion of the section object that was created for each physical adapter.

-parameters

-param hAdapter [in]

A handle to a display adapter. The driver provides this handle for the master/lead device in the LDA chain.

-param pMapFrameBufferPointer [in/out]

Pointer to DXGKARGCB_MAPFRAMEBUFFERPOINTER structure that contains a pointer to the subregion of the section object.

-returns

DXGKCB_MAPFRAMEBUFFERPOINTER returns STATUS_SUCCESS if the operation succeeds. Otherwise, it returns an appropriate NTSTATUS error code.

-remarks

DXGKCB_XXX functions are implemented by Dxgkrnl. To use this callback function, set the appropriate members of DXGKARGCB_MAPFRAMEBUFFERPOINTER and then call DxgkCbMapFrameBufferPointer via the DXGKRNL_INTERFACE.

See IOMMU-based GPU isolation for more information.

-see-also

DXGKCB_UNMAPFRAMEBUFFERPOINTER

DXGKRNL_INTERFACE