PFND3DDDI_CHECKPRESENTDURATIONSUPPORT callback function (d3dumddi.h)
Called by the Microsoft Direct3D runtime to request that the user-mode display driver get hardware device capabilities for seamlessly switching to a new monitor refresh rate. Optionally implemented by Windows Display Driver Model (WDDM) 1.3 and later user-mode display drivers.
Syntax
PFND3DDDI_CHECKPRESENTDURATIONSUPPORT Pfnd3dddiCheckpresentdurationsupport;
HRESULT Pfnd3dddiCheckpresentdurationsupport(
HANDLE hDevice,
D3DDDIARG_CHECKPRESENTDURATIONSUPPORT *unnamedParam2
)
{...}
Parameters
hDevice
A handle to the display device (graphics context).
unnamedParam2
pPresentDurationSupport [in]
A pointer to a D3DDDIARG_CHECKPRESENTDURATIONSUPPORT structure that contains info on hardware device support for seamlessly switching to a new monitor refresh rate.
Return value
If this routine succeeds, it returns S_OK. The driver should always return a success code.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8.1,WDDM 1.3 and later |
| Minimum supported server | Windows Server 2012 R2 |
| Target Platform | Desktop |
| Header | d3dumddi.h (include D3d10umddi.h) |