// video.h

VIDEOPORT_DEPRECATED VIDEOPORT_API PDMA VideoPortAssociateEventsWithDmaHandle(
  [in]      IN PVOID                     HwDeviceExtension,
  [in, out] IN OUT PVIDEO_REQUEST_PACKET pVrp,
  [in]      IN PVOID                     MappedUserEvent,
  [in]      IN PVOID                     DisplayDriverEvent
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nf-video-videoportassociateeventswithdmahandle)

VideoPortAssociateEventsWithDmaHandle function

Description

The VideoPortAssociateEventsWithDmaHandle function is obsolete in Windows 2000 and later.

VideoPortAssociateEventsWithDmaHandle associates an event, which is shared by the video display driver and the video miniport driver, with a DMA handle.

Parameters

`HwDeviceExtension` [in]

Pointer to the miniport driver's device extension.

`pVrp` [in, out]

Pointer to a VIDEO_REQUEST_PACKET.

`MappedUserEvent` [in]

Is reserved for system use.

`DisplayDriverEvent` [in]

Is reserved for system use.

Return value

VideoPortAssociateEventsWithDmaHandle always returns NULL.

Remarks

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

View the official Windows Driver Kit DDI reference