'DeclarationReadOnly Property VisibleDefined As System.Boolean
'UsageDim instance As ILineFormat Dim value As System.Boolean value = instance.VisibleDefined
System.bool VisibleDefined {get;}
read-only property VisibleDefined: System.Boolean;
function get VisibleDefined : System.boolean
            __property System.bool get_VisibleDefined();
            property System.bool VisibleDefined { System.bool get(); }