Adds an accelerator (shortcut key) for the widget, so that the
button/widget can be accessed by using the keyboard, without moving
the mouse or tabbing through widgets.
signal is the name of a signal that should
be invoked on the widget once the accelerator is pressed. For a button,
you most likely want to pass clicked here.
group is a GtkAccelGroup
and should be the one set active for the window. Maybe you
need to create the group and add it to the window first via
add_accel_group() to be
able to use it here.
accel_key defines the key to be pressed, see
Symbolic names for keys to
find the right one.
modifiers tells which additional button
has to be pressed to emit the signal. Normally, you want to use
Gdk::CONTROL_MASK (Ctrl key)
or Gdk::MOD1_MASK (Alt key).
Example 149. Adding a shortcut for a button
$wnd = new GtkWindow();
$group = new GtkAccelGroup();
//Add group to window, making it active
$btn = GtkButton::new_from_stock(Gtk::STOCK_GO_BACK);
'clicked', $group, Gdk::KEY_Left, Gdk::MOD1_MASK, 0
In this example, you can use the shortcut Alt+Left
to activate the back-button.