IVMRFilterConfig9::SetRenderingPrefs method (vmr9.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetRenderingPrefs method sets various application preferences related to video rendering.
Syntax
HRESULT SetRenderingPrefs(
[in] DWORD dwRenderFlags
);
Parameters
[in] dwRenderFlags
Double word containing a bitwise OR of VMR9RenderPrefs values specifying the rendering preferences.
Return value
The method returns an HRESULT. Possible values include those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
No allocator-presenter is present. |
|
dwRenderFlags is invalid. |
Remarks
This method calls through to the allocator-presenter's IVMRImagePresenterConfig9::SetRenderingPrefs method. (The default allocator-presenter exposes IVMRImagePresenterConfig9. Custom allocator-presenters can also expose this interface if desired.) If the VMR-9 has not yet created the default allocator-presenter, or if the application provided a custom allocator-presenter which does not support IVMRImagePresenterConfig9, this method returns VFW_E_WRONG_STATE. To create the default allocator-presenter, call IVMRFilterConfig9::SetRenderingMode with the value VMR9Mode_Windowed or VMR9Mode_Windowed.
Requirements
| Minimum supported client | Windows XP with SP2 [desktop apps only] |
| Minimum supported server | Windows Server 2003 R2 [desktop apps only] |
| Target Platform | Windows |
| Header | vmr9.h |
| Library | Strmiids.lib |