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A user has forced the termination of a requested operation.
Parameters
- lParam1
- Zero.
- lParam2
- Zero.
Remarks
This event notification is sent by video renderers to the filter graph manager and the application. This notification signals a closure that the user requested. For example, this notification would be sent if the user closed the video window. After this notification has been sent, no more samples should be accepted until the renderer has gone through a stop transition. No EC_REPAINTnotifications should be sent after an EC_USERABORTnotification is sent unless the renderer is stopped and reset.
For information on how to use this event code, see CBaseFilter::NotifyEvent.