Adds an event handler for the "OnMeasureItem" event notification. This event is called for list boxes whose drawMode property is set to DrawMode.OWNERDRAWVARIABLE, and asks the programmer for the size of the given item in the listbox.
[Visual Basic] Public Sub AddOnMeasureItem( _ ByVal handler As MeasureItemEventHandler _ ) [C#] public void AddOnMeasureItem( MeasureItemEventHandler handler ); [C++] public: void AddOnMeasureItem( MeasureItemEventHandler* handler ); [JScript] public function AddOnMeasureItem( handler : MeasureItemEventHandler );