/// <summary>
/// Event handler for subscribed events.
/// </summary>
/// <param name="eventCode">Code of the captured event.</param>
/// <param name="source">Source object. In this case, it will always be the Visio application.</param>
/// <param name="eventID">?</param>
/// <param name="eventSequenceNumber">?</param>
/// <param name="subject">The object which caused the event. This parameter is not set for marker events (which are raised by Visio).</param>
/// <param name="moreInfo">?</param>
/// <returns>Always null.</returns>
public object VisEventProc(short eventCode, object source, int eventID, int eventSequenceNumber, object subject, object moreInfo)
{
VisioApplication visioApplication = null;
try
{
visioApplication = (VisioApplication)source;
if (_active == false)
{
return(null);
}
if (visioApplication.IsUndoingOrRedoing == true)
{
return(null);
}
/*
* Test eventCode.
* Yes, it's _so_ retarded to have to use if/else, but we can't switch
* since VisioEvent.* aren't constants. :/
*/
/*
* Called whenever one shape connects to another. Filter out
* connects which are not raised by QuartzProcess shapes.
*/
#region Shape Connect
if (eventCode == VisioEvent.ShapeConnect)
{
Connects connects = (Connects)subject;
HandleShapeConnect(connects);
}
#endregion
/*
* Called whenever a shape is disconnected from another. Filter
* out disconnects which are not raised by QuartzProcess shapes.
*/
#region Shape Disconnect
else if (eventCode == VisioEvent.ShapeDisconnect)
{
Connects connects = (Connects)subject;
HandleShapeDisconnect(connects);
}
#endregion
/*
* Called whenever a QueueMarkerEvent command is executed from
* the shape. Filter out events which are not raised by
* QuartzProcess app.
*/
#region Marker Events
else if (eventCode == VisioEvent.ShapeEventMarker)
{
string context = visioApplication.get_EventInfo(VisioEvent.IdMostRecent);
if (context == null)
{
return(null);
}
NameValueCollection nvc = VisioUtils.ParseContext(context);
HandleMarkerEvent(nvc);
}
#endregion
}
catch (Exception ex)
{
ESIMessageBox.ShowError(ex);
}
return(null);
}