// d3dkmddi.h

typedef struct _DXGK_QUERYSEGMENTMEMORYSTATE {
  WORD             DriverSegmentId;
  WORD             PhysicalAdapterIndex;
  union {
    UINT NumInvalidMemoryRanges;
    UINT NumUEFIFrameBufferRanges;
  };
  UINT             NumInvalidMemoryRanges;
  DXGK_MEMORYRANGE *pMemoryRanges;
} DXGK_QUERYSEGMENTMEMORYSTATE, DXGK_SEGMENTMEMORYSTATE;
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Windows Driver Kit DDI reference (ns-d3dkmddi-_dxgk_querysegmentmemorystate)

_DXGK_QUERYSEGMENTMEMORYSTATE structure

Description

DXGK_QUERYSEGMENTMEMORYSTATE is used with DxgkDdiQueryAdapterInfo to query invalid graphics processing unit (GPU) memory ranges.

Members

`DriverSegmentId`

A 1-based segment identifier of a local GPU memory segment.

`PhysicalAdapterIndex`

Physical adapter index in a linked display adapter link.

`NumUEFIFrameBufferRanges`

`NumInvalidMemoryRanges`

The number of entries in the pMemoryRanges array. This is the value returned by the kernel mode driver in DXGK_SEGMENTDESCRIPTOR4.

`pMemoryRanges`

Array of DXGK_MEMORYRANGE structures for the invalid memory ranges.

DXGK_QUERYSEGMENTMEMORYSTATE - NtDoc