![]() If there is no default action, the Filter Graph Manager automatically forwards the event to the application (through the event queue).įilters can define custom events with event codes in the range EC_USER and higher. Event codes are defined in the header files Evcode.h and Audevcod.h. To override the default action, call IMediaEvent::CancelDefaultHandling. In the sections that follow, each entry lists the event code, the meaning of the event parameters, and the Filter Graph Manager's default action for the event, if any. The application retrieves them by calling the IMediaEvent::GetEvent method. The Filter Graph Manager handles some events and queues others for the application. For events specific to DVD, see DVD Event Notification Codes.įilters send events to the Filter Graph Manager by calling the IMediaEventSink::Notify method. This sections lists the DirectShow events that are not specific to DVD. ![]()
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