VideoPortSetDmaContext function (video.h)

The VideoPortSetDmaContext function is obsolete in Windows 2000 and later.

Syntax

VIDEOPORT_DEPRECATED VIDEOPORT_API VOID VideoPortSetDmaContext(
  [in]  IN PVOID HwDeviceExtension,
  [out] OUT PDMA pDma,
  [in]  IN PVOID InstanceContext
);

Parameters

[in] HwDeviceExtension

Pointer to the miniport driver's device extension.

[out] pDma

Pointer to a DMA handle.

[in] InstanceContext

Pointer to the DMA context to set.

Return value

None

Remarks

See Bus-Master DMA in Video Miniport Drivers for information about packet-based and common-buffer DMA transfers.

Requirements

Requirement	Value
Minimum supported client	Available in Windows 2000 and later versions of the Windows operating systems.
Target Platform	Desktop
Header	video.h (include Video.h)
Library	Videoprt.lib
DLL	Videoprt.sys