Use the ID property to specify a specified even by its identifier. Use the ToString property to display information about fired event such us name, parameters, types and values. Use the CountParam property to count the parameters  of an OLE event. Use the Param property to get the event's parameter. Use the Value property to specify the value of the parameter.

The following VB sample prints the events that an inside ActiveX control fires:

Private Sub ExMenu1_OleEvent(ByVal ID As Long, ByVal Ev As EXMENULibCtl.IOleEvent)
    With ExMenu1.Item(ID)
        Debug.Print (.Caption)
    End With
    With Ev
        Debug.Print .Name
        Dim i As Long
        For i = 0 To .CountParam - 1
            With .Param(i)
                Debug.Print .Name & " = " & .Value
            End With
        Next
    End With
End Sub

The following C++ sample prints the events that an inside ActiveX control fires:

#import <exmenu.dll>
void OnOleEventExmenu1(long ID, LPDISPATCH Ev) 
{
	EXMENULib::IOleEventPtr spEvent( Ev );
	OutputDebugString( spEvent->GetName() );
	for ( long i = 0; i < spEvent->CountParam; i++ )
	{
		EXMENULib::IOleEventParamPtr spParam = NULL; 
		spEvent->get_Param( COleVariant( i ), &spParam );
		CString strOutput;
		strOutput.Format( "%s = %s", spParam->Name.operator const char *(), V2S( &spParam->Value ) );
		OutputDebugString( strOutput );
	}
}

The C++ sample requires #import <exmenu.dll> to import definitions for OleEvent and OleEvenParam objects. It generates the EXMENULib namespace that includes all objects for the ExMenu component. 

The V2S function converts a VARIANT value to a string expression:

static CString V2S( VARIANT* pv, LPCTSTR szDefault = _T("") )
{
	if ( pv )
	{
		if ( pv->vt == VT_ERROR )
			return szDefault;

		COleVariant vt;
		vt.ChangeType( VT_BSTR, pv );
		return V_BSTR( &vt );
	}
	return szDefault;
}

The following VB.NET sample prints the events that an inside ActiveX control fires:

Private Sub AxExMenu1_OleEvent(ByVal sender As Object, ByVal e As AxEXMENULib._IMenuEvents_OleEventEvent) Handles AxExMenu1.OleEvent
    With AxExMenu1.item(e.iD)
        Debug.Print(.Caption)
    End With
    With e.ev
        Debug.WriteLine(.Name())
        Dim i As Integer
        For i = 0 To .CountParam - 1
            With .Param(i)
                Debug.WriteLine(.Name + " = " + .Value.ToString())
            End With
        Next
    End With
End Sub

The following C# sample prints the events that an inside ActiveX control fires:

private void axExMenu1_OleEvent(object sender, AxEXMENULib._IMenuEvents_OleEventEvent e)
{
	System.Diagnostics.Debug.WriteLine(axExMenu1[e.iD].Caption);
	System.Diagnostics.Debug.WriteLine(e.ev.Name);
	for (int i = 0; i < e.ev.CountParam; i++)
	{
		EXMENULib.OleEventParam param = e.ev[i];
		System.Diagnostics.Debug.WriteLine( param.Name + " = " + param.Value.ToString());
	}
}

The following VFP sample prints the events that an inside ActiveX control fires:

*** ActiveX Control Event ***
LPARAMETERS id, ev

With thisform.ExMenu1.Item(ID)
    wait window nowait (.Caption)
EndWith
With Ev
    wait window nowait .Name
	local i
    For i = 0 To .CountParam - 1
        With .Param(i)
            wait window nowait .Name && + " = " + Str(.Value)
        EndWith
    Next
EndWith