// d3dkmthk.h

PFND3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP Pfnd3dkmtCheckvidpnexclusiveownership;

NTSTATUS Pfnd3dkmtCheckvidpnexclusiveownership(
  const D3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP *unnamedParam1
)
{...}
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Windows Driver Kit DDI reference (nc-d3dkmthk-pfnd3dkmt_checkvidpnexclusiveownership)

PFND3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP callback function

Description

The D3DKMTCheckVidPnExclusiveOwnership function determines the video present source in the path of a video present network (VidPN) topology that exclusively owns the VidPN.

Parameters

`unnamedParam1`

pData [in]

A pointer to a D3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP structure that describes the parameters to determine exclusive VidPN ownership.

Return value

D3DKMTCheckVidPnExclusiveOwnership returns one of the following values:

Return code	Description
STATUS_SUCCESS	Exclusive ownership of the VidPN was successfully determined.
STATUS_DEVICE_REMOVED	The graphics adapter was stopped or the display device was reset.
STATUS_GRAPHICS_VIDPN_SOURCE_IN_USE	The video present source that is identified by the VidPnSourceId member of D3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP is already owned by a display mode manager (DMM) client and cannot be used until the client releases the video present source.
STATUS_GRAPHICS_INVALID_VIDEO_PRESENT_SOURCE	The video present source that is identified by the VidPnSourceId member of D3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP is invalid.
STATUS_INVALID_PARAMETER	Parameters were validated and determined to be incorrect.

This function might also return other NTSTATUS values.

PFND3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP - NtDoc