IAMOverlayFX interface (strmif.h)

The IAMOverlayFX interface controls how the video overlay appears on the user's screen. The Overlay Mixer filter implements this interface.


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


The IAMOverlayFX interface has these methods.

Method Description
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.


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)