Fires once the filter has attached and filtering has started.
The 'callback' is called when the 'FilterStart' event is emited.
The argument 'e' has the following properties:
This event fires once the filter has attached and filtering has started; please refer to the StartFilter method for more information.
The ResultCode parameter will always be 0 when the event is fired. If the event cannot be handled in a "successful" manner for some reason (e.g., a resource isn't available, security checks failed, etc.), set it to a non-zero value to report an appropriate error. Please refer to the Error Reporting and Handling topic for more information.
This event is fired synchronously; please refer to the Event Types topic for more information.