DXGKDDI_DISPATCH_IO_REQUEST - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// dispmprt.h

DXGKDDI_DISPATCH_IO_REQUEST DxgkddiDispatchIoRequest;

NTSTATUS DxgkddiDispatchIoRequest(
  [in] IN_CONST_PVOID MiniportDeviceContext,
  [in] IN_ULONG VidPnSourceId,
  [in] IN_PVIDEO_REQUEST_PACKET VideoRequestPacket
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-dispmprt-dxgkddi_dispatch_io_request)

DXGKDDI_DISPATCH_IO_REQUEST callback function

Description

The DxgkDdiDispatchIoRequest function handles I/O control (IOCTL) requests.

Parameters

MiniportDeviceContext [in]

A handle to a context block associated with a display adapter. The display miniport driver's DxgkDdiAddDevice function previously provided this handle to the DirectX graphics kernel subsystem.

VidPnSourceId [in]

An integer that identifies the video present source associated with the I/O request.

VideoRequestPacket [in]

A pointer to a VIDEO_REQUEST_PACKET structure that describes the I/O request.

Return value

DxgkDdiDispatchIoRequest returns STATUS_SUCCESS if it succeeds; otherwise it returns one of the error codes defined in Ntstatus.h.

Remarks

The DxgkDdiDispatchIoRequest function should be made pageable.

See also

VIDEO_REQUEST_PACKET

View the official Windows Driver Kit DDI reference

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