An #AtkKeySnoopFunc is a type of callback which is called whenever a key event occurs,
if registered via atk_add_key_event_listener. It allows for pre-emptive
interception of key events via the return code as described below.
TRUE (nonzero) if the event emission should be stopped and the event
discarded without being passed to the normal GUI recipient; FALSE (zero) if the
event dispatch to the client application should proceed as normal.
An #AtkKeySnoopFunc is a type of callback which is called whenever a key event occurs, if registered via atk_add_key_event_listener. It allows for pre-emptive interception of key events via the return code as described below.