Menus, Combo Box, Toolbar

GtkComboBox - a widget used to choose from a list of items.
GtkComboBoxEntry - a text entry field with a dropdown list
GtkMenu - a drop down menu widget.
GtkMenuBar - A subclass widget for GtkMenuShell which holds GtkMenuItem widgets
GtkMenuItem - the widget used for item in menus
GtkMenuShell - a base class for menu objects.
GtkImageMenuItem - a menu item with an icon.
GtkRadioMenuItem - A choice from multiple check menu items.
GtkCheckMenuItem - a menu item with a check box.
GtkSeparatorMenuItem - a separator used in menus.
GtkTearoffMenuItem - a menu item used to tear off and reattach its menu.
GtkToolbar - Create bars of buttons and other widgets.
GtkToolItem - GtkToolItem is the base class of widgets that can be added to GtkToolbar.
GtkSeparatorToolItem - A toolbar item that separates groups of other toolbar items.
GtkToolButton - A GtkToolItem subclass that displays buttons
GtkToggleToolButton - A GtkToolItem containing a toggle button.
GtkRadioToolButton - A toolbar item that contains a radio button.