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DXGKDDI_GETDPADDRESS callback function (dispmprt.h)

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The DXGKDDI_GETDPADDRESS callback queries the DisplayPort (DP) address of a monitor connected through DP.

Syntax

DXGKDDI_GETDPADDRESS DxgkddiGetdpaddress;

NTSTATUS DxgkddiGetdpaddress(
  HANDLE Context,
  PDXGKARG_GETDPADDRESS pArgs
)
{...}

Parameters

Context

Context pointer provided when querying the interface.

pArgs

Pointer to a DXGKARG_GETDPADDRESS structure.

Return value

DXGKDDI_GETDPADDRESS returns STATUS_SUCCESS if it succeeds; otherwise it returns an error code.

Remarks

DXGKDDI_GETDPADDRESS is both for developmental and validation purposes.

For TargetId of a monitor connected through DP, the driver should return its DP address in the form of RootPortIndex, NumLinks, and DP Relative Address in RelAddress. NumLinks should be 0 if the DP monitor is directly connected to the GPU; otherwise, it should be the number of links between the root port and target device. The format of the Relative Address in RelAddress should follow the DP spec.

Requirements

Requirement Value
Minimum supported client Windows 10, version 2004
Header dispmprt.h

See also

DXGKARG_GETDPADDRESS