| SoPolyLineScreenDrawerOnStart Event | 
Event raised when starting to draw a polyline. 
 
Namespace: OIV.Inventor.DrawersAssembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2023.1.3.0 (2023.1.3)
Syntaxpublic event EventHandler<SoPolyLineScreenDrawerEventArg> OnStart
Public Event OnStart As EventHandler(Of SoPolyLineScreenDrawerEventArg)
public:
 event EventHandler<SoPolyLineScreenDrawerEventArg>^ OnStart {
	void add (EventHandler<SoPolyLineScreenDrawerEventArg>^ value);
	void remove (EventHandler<SoPolyLineScreenDrawerEventArg>^ value);
}member OnStart : IEvent<EventHandler<SoPolyLineScreenDrawerEventArg>,
    SoPolyLineScreenDrawerEventArg>
Value
Type: 
SystemEventHandlerSoPolyLineScreenDrawerEventArg
RemarksSee SbEventHandler for methods to set a callback to be notified when this event is raised. The callback will be called with an OIV.Inventor.Drawers.SoPolyLineScreenDrawer.EventArg from which it can query the current action and drawer objects. 
Note that the callback parameter must be declared  const . 
See Also