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IVMRFilterConfig9::SetImageCompositor

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Microsoft DirectShow 9.0

IVMRFilterConfig9::SetImageCompositor

The SetImageCompositor method installs an application-provided image compositor object.

Syntax

  HRESULT SetImageCompositor(
  IVMRImageCompositor9*  lpVMRImgCompositor
);

Parameters

lpVMRImgCompositor

[in]  Pointer to the image compositor object provided by the application.

Return Values

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

Value Description
E_FAIL Cannot change the compositor when the VMR filter's pins are connected.
E_POINTER NULL pointer.
S_OK The method succeeded.
VFW_E_WRONG_STATE The VMR is not in mixing mode.

Remarks

Use this method to replace the VMR's default compositor with a custom compositor provided by the application. The image compositor is a sub-component of the mixer. The mixer must be loaded, through a call to IVMRFilterConfig9::SetNumberOfStreams,

before the compositor can be specified. The VMR manages all reference counting on the IVMRImageCompositor9 interface.

Requirements

Header: Include D3d9.h, Vmr9.h.

Library: Use Strmiids.lib.

See Also