filter_key

Description:

public bool filter_key (bool press, Surface surface, Device device, uint32 time, uint keycode, ModifierType state, int group)

Allow an input method to forward key press and release events to another input method without necessarily having a `GdkEvent` available.

this	a `GtkIMContext`
press	whether to forward a key press or release event
surface	the surface the event is for
device	the device that the event is for
time	the timestamp for the event
keycode	the keycode for the event
state	modifier state for the event
group	the active keyboard group for the event

true if the input method handled the key event.