DXGKDDI_VIDPNTOPOLOGY_RELEASEPATHINFO callback function (d3dkmddi.h)
The pfnReleasePathInfo function releases a D3DKMDT_VIDPN_PRESENT_PATH structure that the VidPN manager previously provided to the display miniport driver.
Syntax
DXGKDDI_VIDPNTOPOLOGY_RELEASEPATHINFO DxgkddiVidpntopologyReleasepathinfo;
NTSTATUS DxgkddiVidpntopologyReleasepathinfo(
[in] IN_CONST_D3DKMDT_HVIDPNTOPOLOGY hVidPnTopology,
[in] IN_CONST_PD3DKMDT_VIDPN_PRESENT_PATH_CONST pVidPnPresentPathInfo
)
{...}
Parameters
[in] hVidPnTopology
A handle to a VidPN topology object. The display miniport driver previously obtained this handle by calling the pfnGetTopology function of the DXGK_VIDPN_INTERFACE interface.
[in] pVidPnPresentPathInfo
A pointer to the D3DKMDT_VIDPN_PRESENT_PATH structure that is to be released.
Return value
The pfnReleasePathInfo function returns one of the following values:
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The function succeeded. |
| STATUS_GRAPHICS_INVALID_VIDPN_TOPOLOGY | The handle supplied in hVidPnTopology was invalid. |
| STATUS_GRAPHICS_INVALID_VIDPN_PRESENT_PATH | The pointer supplied in pVidPnPresentPathInfo was invalid. |
Remarks
When you have finished using a D3DKMDT_VIDPN_PRESENT_PATH structure that you obtained by calling any of the following functions, you must release the structure by calling pfnReleasePathInfo.
If you obtain a D3DKMDT_VIDPN_PRESENT_PATH structure by calling pfnCreateNewPathInfo and then pass that structure to pfnAddPath, you do not need to release the structure.If you obtain a handle by calling pfnCreateNewPathInfo and then you decide not to add the new path to a topology, you must release the newly created structure by calling pfnReleasePathInfo.
The D3DKMDT_HVIDPNTOPOLOGY 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 |