event Event (EventID as Long)
Notifies the application once the control fires an event.

TypeDescription
EventID as Long A Long expression that specifies the identifier of the event. Use the EventParam(-2) to display entire information about fired event ( such as name, identifier, and properties ).
The Event notification occurs ANY time the control fires an event. 

This is useful for X++ language, which does not support event with parameters passed by reference.

In X++ the "Error executing code: FormActiveXControl (data source), method ... called with invalid parameters" occurs when handling events that have parameters passed by reference. Passed by reference, means that in the event handler, you can change the value for that parameter, and so the control will takes the new value, and use it. The X++ is NOT able to handle properly events with parameters by reference, so we have the solution. 

The solution is using and handling the Event notification and EventParam method., instead handling the event that gives the "invalid parameters" error executing code.

Here's how the output is shown, when printing the EventParam(-2) during the Event event:

MouseIn/2( 0 )
MouseMove/-606( 0 , 0 , 184 , 420 )
MouseDown/-605( 1 , 0 , 184 , 420 )
DragStart/4( [Object] , =false )
MouseMove/-606( 1 , 0 , 185 , 420 )
Change/7( 0 )
Drag/5( [Object] )
DragEnd/6( [Object] , false )
MouseUp/-607( 1 , 0 , 337 , 382 )
MouseMove/-606( 0 , 0 , 338 , 383 )
MouseOut/3( 0 )
MouseMove/-606( 0 , 0 , 369 , 623 )
MouseMove/-606( 0 , 0 , 369 , 636 )

Syntax for Event event, /NET version, on: 

private void Event(object sender,int   EventID)
{
}


Private Sub Event(ByVal sender As System.Object,ByVal EventID As Integer) Handles Event
End Sub

Syntax for Event event, /COM version, on: 

private void Event(object sender, AxEXGAUGELib._IGaugeEvents_EventEvent e)
{
}


void OnEvent(long   EventID)
{
}


void __fastcall Event(TObject *Sender,long   EventID)
{
}


procedure Event(ASender: TObject; EventID : Integer);
begin
end;


procedure Event(sender: System.Object; e: AxEXGAUGELib._IGaugeEvents_EventEvent);
begin
end;


begin event Event(long  EventID)

end event Event


Private Sub Event(ByVal sender As System.Object, ByVal e As AxEXGAUGELib._IGaugeEvents_EventEvent) Handles Event
End Sub


Private Sub Event(ByVal EventID As Long)
End Sub


Private Sub Event(ByVal EventID As Long)
End Sub


LPARAMETERS EventID



PROCEDURE OnEvent(oGauge,EventID)

RETURN

Syntax for Event event, /COM version (others), on: 

<SCRIPT EVENT="Event(EventID)" LANGUAGE="JScript">
</SCRIPT>


<SCRIPT LANGUAGE="VBScript">
Function Event(EventID)
End Function
</SCRIPT>


Procedure OnComEvent Integer   llEventID
	Forward Send OnComEvent llEventID
End_Procedure


METHOD OCX_Event(EventID) CLASS MainDialog
RETURN NIL


void onEvent_Event(int   _EventID)
{
}


function Event as v (EventID  as  N)
end function


function nativeObject_Event(EventID)
return