// d3dkmddi.h

typedef struct _DXGKARG_SETFLIPQUEUELOGBUFFER {
  D3DDDI_VIDEO_PRESENT_SOURCE_ID VidPnSourceId;
  UINT                           LayerIndex;
  UINT                           NumberOfEntries;
  DXGK_FLIPQUEUE_LOG_ENTRY       *LogBufferAddress;
} DXGKARG_SETFLIPQUEUELOGBUFFER;
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Windows Driver Kit DDI reference (ns-d3dkmddi-dxgkarg_setflipqueuelogbuffer)

Description

The DXGKARG_SETFLIPQUEUELOGBUFFER structure contains parameters for the driver's DXGKDDI_SETFLIPQUEUELOGBUFFER callback function.

Members

`VidPnSourceId`

[in] A D3DDDI_VIDEO_PRESENT_SOURCE_ID value that identifies the VidPn source ID for which the flip queue log buffer is being provided.

`LayerIndex`

[in] A zero-based index value that identifies the MPO plane index for which the flip queue log buffer is being provided.

`NumberOfEntries`

[in] The number of entries in the flip queue log buffer that LogBufferAddress points to.

`LogBufferAddress`

[in] Pointer to an array of DXGK_FLIPQUEUE_LOG_ENTRY structures in the flip queue log buffer. This value is the kernel-mode CPU virtual address of the flip queue log buffer in non-paged memory. LogBufferAddress is NULL if the OS is about to destroy the current flip queue log buffer.

Remarks

See Obtaining present statistics for queued flips for more information.

DXGKARG_SETFLIPQUEUELOGBUFFER - NtDoc