A toolbar button that can be toggled on or off.
GObject
`-- GtkObject
`-- GtkWidget
`-- GtkContainer
`-- GtkBin
`-- GtkToolItem
`-- GtkToolButton
`-- GtkToggleToolButton
A GtkToolItem containing a toggle button.
-- Creates a new toggle tool button.
-- Creates a new toggle tool button based on a stock item.
get_active() If the button is toggled active. set_active() Sets the button to active state.
"toggled" The state has been changed.