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DXGKARG_QUERYDPCAPS structure (dispmprt.h)

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The DXGKARG_QUERYDPCAPS structure is a parameter for the DXGKDDI_QUERYDPCAPS callback.

Syntax

typedef struct _DXGKARG_QUERYDPCAPS {
  UINT NumRootPorts;
  BYTE DPVersionMajor;
  BYTE DPVersionMinor;
} DXGKARG_QUERYDPCAPS, *PDXGKARG_QUERYDPCAPS;

Members

NumRootPorts

Number of DisplayPort (DP) capable connectors on the GPU, including the one for the eDP internal panel.

DPVersionMajor

Value that represents the major version of the DP protocol.

DPVersionMinor

Value that represents the minor version of the DP protocol.

Remarks

Subsequent transmission calls will refer to the DP connectors with RootPortIndex ranging from 0 to NumRootPorts - 1.

DPVersionMajor and DPVersionMinor is the highest version of the DP protocol supported by the driver and GPU DP root ports of major/minor versions. For example, DPVersionMajor == 1 and DPVersionMinor == 1 represent DP protocol 1.1, DPVersionMajor == 1 and DPVersionMinor == 2 is for 1.2, and so forth.

Requirements

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

See also

DXGKDDI_DPAUXIOTRANSMISSION

DXGKDDI_DPI2CIOTRANSMISSION

DXGKDDI_DPSBMTRANSMISSION

DXGKDDI_QUERYDPCAPS