IVMRFilterConfig::GetRenderingPrefs
| Microsoft DirectShow 9.0 |
IVMRFilterConfig::GetRenderingPrefs
The GetRenderingPrefs method retrieves the current set of rendering preferences being used by the VMR.
Syntax
HRESULT GetRenderingPrefs( DWORD* pdwRenderFlags );
Parameters
pdwRenderFlags
[out] Receives a member of the VMRRenderPrefs enumeration, indicating the current rendering preferences.
Return Values
If the method succeeds, it returns S_OK. If it fails, it returns an error code.
| Error Code | Description |
| E_POINTER | pdwRenderingPrefs is invalid |
| VFW_E_WRONG_STATE | No allocator-presenter object is currently loaded. |
Remarks
This method calls through to the allocator-presenter's IVMRImagePresenterConfig::GetRenderingPrefs method. (The default allocator-presenter exposes IVMRImagePresenterConfig. Custom allocator-presenters can also expose this interface if desired.) If the VMR-7 has not yet created the default allocator-presenter, or if the application provided a custom allocator-presenter which does not support IVMRImagePresenterConfig, this method returns VFW_E_WRONG_STATE. To create the default allocator-presenter, call IVMRFilterConfig::SetRenderingMode with the value VMRMode_Windowed or VMRMode_Windowed.
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also