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IAMOverlayFX interface (strmif.h)

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 IAMOverlayFX interface controls how the video overlay appears on the user's screen. The Overlay Mixer filter implements this interface.

Inheritance

The IAMOverlayFX interface inherits from the IUnknown interface. IAMOverlayFX also has these types of members:

Methods

The IAMOverlayFX interface has these methods.

 
IAMOverlayFX::GetOverlayFX

The GetOverlayFX method retrieves the effects currently applied to the overlay surface, if any. The application can call this method while the filter graph is running.
IAMOverlayFX::QueryOverlayFXCaps

The QueryOverlayFXCaps method retrieves information about which overlay effects are available to the Overlay Mixer filter.
IAMOverlayFX::SetOverlayFX

The SetOverlayFX method applies the specified effects to the overlay surface.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)