DXGKDDI_VIDPNSOURCEMODESET_GETNUMMODES callback function

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

Syntax


DXGKDDI_VIDPNSOURCEMODESET_GETNUMMODES pfnGetNumModes;

NTSTATUS APIENTRY pfnGetNumModes(
  _In_  const D3DKMDT_HVIDPNSOURCEMODESET hVidPnSourceModeSet,
  _Out_       SIZE_T CONST                *pNumSourceModes
)
{ ... }

Parameters

hVidPnSourceModeSet [in]

[in] A handle to a VidPN source mode set object. The display miniport driver previously obtained this handle by calling the pfnAcquireSourceModeSet function of the DXGK_VIDPN_INTERFACE interface.

pNumSourceModes [out]

[out] A pointer to a SIZE_T-typed variable that receives the number of source modes in the set.

Return value

The pfnGetNumModes function returns one of the following values:

Return codeDescription
STATUS_SUCCESS

The function succeeded.

STATUS_GRAPHICS_INVALID_VIDPN_SOURCEMODESET

The handle supplied in hVidPnSourceModeSet was invalid.

 

Remarks

The D3DKMDT_HVIDPNSOURCEMODESET data type is defined in D3dkmdt.h.

Requirements

Target platform

Desktop

Version

Available in Windows Vista and later versions of the Windows operating systems.

Header

D3dkmddi.h (include D3dkmddi.h)

IRQL

PASSIVE_LEVEL

See also

pfnAcquireFirstModeInfo
pfnAcquireNextModeInfo

 

 

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