DXGKDDI_VIDPNSOURCEMODESET_GETNUMMODES callback function (d3dkmddi.h)
The pfnGetNumModes function returns the number of source modes in a specified VidPN source mode set.
Syntax
DXGKDDI_VIDPNSOURCEMODESET_GETNUMMODES DxgkddiVidpnsourcemodesetGetnummodes;
NTSTATUS DxgkddiVidpnsourcemodesetGetnummodes(
[in] IN_CONST_D3DKMDT_HVIDPNSOURCEMODESET hVidPnSourceModeSet,
[out] OUT_PSIZE_T_CONST pNumSourceModes
)
{...}
Parameters
[in] hVidPnSourceModeSet
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.
[out] pNumSourceModes
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
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista |
| Target Platform | Desktop |
| Header | d3dkmddi.h (include D3dkmddi.h) |
| IRQL | PASSIVE_LEVEL |