gtk:accel-group-activate (group quark acceleratable key mask)

group -- a gtk:accel-group object
quark -- a string with the g:quark-as-string ID for the accelerator name
acceleratable -- a g:object object, usually a gtk:window widget, on which to activate the accelerator
key -- an unsigned integer with the accelerator keyval from a key event
mask -- a gdk:modifier-type value with the keyboard state mask from a key event

True if an accelerator was activated and handled this keypress.

Finds the first accelerator in group that matches key and mask, and activates it.