wxListCtrl

I'm not a fan of that row of column width constants - especially the +3

How about:

	Method GetColumnWidth:Int(_list_control:wxListCtrl,_col:Int)
	
		Local width:Int
	
		For Local column:Int = 0 Until _list_control.GetColumnCount()
			If column <> _col Then width :+ _list_control.GetColumnWidth(column)
		Next
		
		If width 
			Local listbox_width:Int
			Local dummy:Int
			_list_control.GetClientSize(listbox_width,dummy)
			width = Max(0,listbox_width - width)
		EndIf
		
		Return width
	
	End Method

And calling with

ListControl.SetColumnWidth(4,GetColumnWidth(ListControl,4))

That said, I probably would have extended the wxListCtrl and placed this code in there, to prevent all this ListControl argument passing.