DXGKDDI_GETSCANLINE callback function (d3dkmddi.h)
The DxgkDdiGetScanLine function determines whether the specified video present target of a video present network (VidPN) is in vertical blanking mode and retrieves the current scan line.
Syntax
DXGKDDI_GETSCANLINE DxgkddiGetscanline;
NTSTATUS DxgkddiGetscanline(
[in] IN_CONST_HANDLE hAdapter,
[in/out] INOUT_PDXGKARG_GETSCANLINE pGetScanLine
)
{...}
Parameters
[in] hAdapter
A handle to a context block that is associated with a display adapter. The display miniport driver previously provided this handle to the Microsoft DirectX graphics kernel subsystem in the MiniportDeviceContext output parameter of the DxgkDdiAddDevice function.
[in/out] pGetScanLine
A pointer to a DXGKARG_GETSCANLINE structure that contains the vertical blanking status of a video present target.
Return value
DxgkDdiGetScanLine returns STATUS_SUCCESS if it succeeds; otherwise, it returns one of the error codes defined in Ntstatus.h.
Remarks
DxgkDdiGetScanLine should be made pageable.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista |
| Target Platform | Desktop |
| Header | d3dkmddi.h |
| IRQL | PASSIVE_LEVEL |