PFND3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP callback function (d3dkmthk.h)
The D3DKMTCheckVidPnExclusiveOwnership function determines the video present source in the path of a video present network (VidPN) topology that exclusively owns the VidPN.
Syntax
PFND3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP Pfnd3dkmtCheckvidpnexclusiveownership;
NTSTATUS Pfnd3dkmtCheckvidpnexclusiveownership(
const D3DKMT_CHECKVIDPNEXCLUSIVEOWNERSHIP *unnamedParam1
)
{...}
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | D3DKMTCheckVidPnExclusiveOwnership is supported beginning with the Windows 7 operating system. |
| Target Platform | Universal |
| Header | d3dkmthk.h (include D3dkmthk.h) |