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DXGKDDI_VIDPNTARGETMODESET_GETNUMMODES callback function (d3dkmddi.h)

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The pfnGetNumModes function returns the number of target modes in a specified VidPN target mode set.

Syntax

DXGKDDI_VIDPNTARGETMODESET_GETNUMMODES DxgkddiVidpntargetmodesetGetnummodes;

NTSTATUS DxgkddiVidpntargetmodesetGetnummodes(
  IN_CONST_D3DKMDT_HVIDPNTARGETMODESET hVidPnTargetModeSet,
  OUT_PSIZE_T_CONST pNumTargetModes
)
{...}

Parameters

hVidPnTargetModeSet

A handle to a VidPN target mode set object. The display miniport driver previously obtained this handle by calling the pfnAcquireTargetModeSet function of the DXGK_VIDPN_INTERFACE interface.

pNumTargetModes

A pointer to a SIZE_T-typed variable that receives the number of target modes in the set.

Return value

The pfnGetNumModes function returns one of the following values:

Return code Description
STATUS_SUCCESS The function succeeded.
STATUS_GRAPHICS_INVALID_VIDPN_TARGETMODESET The handle supplied in hVidPnTargetModeSet was invalid.

Remarks

The D3DKMDT_HVIDPNTARGETMODESET data type is defined in D3dkmdt.h.

Requirements

Requirement Value
Minimum supported client Windows Vista
Target Platform Desktop
Header d3dkmddi.h (include D3dkmddi.h)
IRQL PASSIVE_LEVEL

See also

pfnAcquireFirstModeInfo

pfnAcquireNextModeInfo