PDX_GETCURRENTAUTOFLIP callback function (dxmini.h)

The DxGetCurrentAutoflip callback function is called when the device is hardware autoflipping and a client of the video miniport driver wants to know which surface is receiving the current field of video data for capture purposes.

Syntax

PDX_GETCURRENTAUTOFLIP PdxGetcurrentautoflip;

DWORD PdxGetcurrentautoflip(
  PVOID unnamedParam1,
  PDDGETCURRENTAUTOFLIPININFO unnamedParam2,
  PDDGETCURRENTAUTOFLIPOUTINFO unnamedParam3
)
{...}

Parameters

unnamedParam1

Points to the miniport driver's device extension.

unnamedParam2

Points to the DDGETCURRENTAUTOFLIPININFO structure that contains the VPE object information.

unnamedParam3

Points to the DDGETCURRENTAUTOFLIPOUTINFO structure that contains the surface information.

Return value

DxGetCurrentAutoflip returns DX_OK if it succeeds; otherwise, it returns one of the following error values:

Remarks

The DxGetCurrentAutoflip function returns the current index in the autoflip chain of the current surface in the dwSurfaceIndex member of the DDGETCURRENTAUTOFLIPOUTINFO structure at GetCurrentAutoflipOutInfo.

Requirements

See also

DDGETCURRENTAUTOFLIPININFO

DDGETCURRENTAUTOFLIPOUTINFO