TFPgtkToolbar.InsertElement

public function TFPgtkToolbar.InsertElement(

  ButtonType: TGtkToolbarChildType;

  PrevRadioBut: TFPgtkWidget;

  Text: string;

  TooltipText: string;

  TooltipPrivate: string;

  Icon: TFPgtkWidget;

  CallBack: TFPgtkSignalFunction;

  data: pointer;

  position: Integer

):TFPgtkWidget;