IVMRDeinterlaceControl::GetDeinterlacePrefs method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The GetDeinterlacePrefs method queries how the VMR will select a deinterlacing mode if it cannot use the preferred deinterlacing mode.
Syntax
HRESULT GetDeinterlacePrefs(
[in] LPDWORD lpdwDeinterlacePrefs
);
Parameters
[in] lpdwDeinterlacePrefs
Pointer to a variable that receives a member of the VMRDeinterlacePrefs enumeration.
Return value
Returns an HRESULT value. Possible values include the following:
| Return code | Description |
|---|---|
|
NULL pointer argument. |
|
Success. |
|
The VMR is not in mixer mode. |
Remarks
By default, the preferred deinterlacing mode is the first mode reported by the driver. The application can set the preferred mode by calling the IVMRDeinterlaceControl::SetDeinterlaceMode method. If the VMR cannot use the preferred mode, it will fall back to another mode as specified by the dwDeinterlacePrefs parameter.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP1 [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |
See also
IVMRDeinterlaceControl Interface