- GtkReserved1
void function() GtkReserved1;
- GtkReserved2
void function() GtkReserved2;
- GtkReserved3
void function() GtkReserved3;
- GtkReserved4
void function() GtkReserved4;
- parentClass
GtkToolButtonClass parentClass;
- showMenu
void function(GtkMenuToolButton* button) showMenu;