The MVIOOutput control is an ActiveX Control that sends events to an application for every received I/O value from a MV I/O Renderer filter. Use the control to get I/O data from a filter graph configuration.
Interface: IMVIOOutput
Events: _IMVIOOutputEvents
File: MVIOControls.dll
How To Use
Look at this page to get more information.
To get the events from this control select the control in the property bar of your development environtment and add an event handler for the events.