Locking an acelerator group prevents the accelerators contained
within it to be changed during runtime. Refer to
gtk.accel_map.AccelMap.changeEntry about runtime accelerator changes.
If called more than once, accel_group remains locked until
gtk.accel_group.AccelGroup.unlock has been called an equivalent number
of times.
Locks the given accelerator group.
Locking an acelerator group prevents the accelerators contained within it to be changed during runtime. Refer to gtk.accel_map.AccelMap.changeEntry about runtime accelerator changes.
If called more than once, accel_group remains locked until gtk.accel_group.AccelGroup.unlock has been called an equivalent number of times.