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 DxgkddiVidpnsourcemodesetGetnummodes;

NTSTATUS DxgkddiVidpnsourcemodesetGetnummodes(
  IN_CONST_D3DKMDT_HVIDPNSOURCEMODESET hVidPnSourceModeSet,
  OUT_PSIZE_T_CONST pNumSourceModes
)
{...}

Parameters

hVidPnSourceModeSet

[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] 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 code Description
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

   
Minimum supported client Available in Windows Vista and later versions of the Windows operating systems.
Target Platform Desktop
Header d3dkmddi.h (include D3dkmddi.h)
IRQL PASSIVE_LEVEL

See Also

pfnAcquireFirstModeInfo

pfnAcquireNextModeInfo