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IVMRFilterConfig9::GetRenderingPrefs

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Microsoft DirectShow 9.0

IVMRFilterConfig9::GetRenderingPrefs

The GetRenderingPrefs method retrieves the current set of rendering preferences being used by the VMR-9.

Syntax

  HRESULT GetRenderingPrefs(
  DWORD*  pdwRenderFlags
);

Parameters

pdwRenderFlags

[out]  Pointer to DWORD that receives a VMR9RenderPrefs value indicating the current rendering preferences.

Return Values

The method returns an HRESULT. Possible values include those in the following table.

Value Description
S_OK The method succeeded.
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 IVMRImagePresenterConfig9::GetRenderingPrefs 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

Header: Include D3d9.h, Vmr9.h.

Library: Use Strmiids.lib.

See Also