ungrab_key/3
ungrab_key(+Key, +ModifiersMask, +UngrabWindow)
Releases the passive grab started by the key combination on the specified window if it was grabbed by this client. Has no effect on an active grab.
Key is the key that should be ungrabbed. One of:
keysym/2
.
any_key
ModifiersMask is one of:
modifiers_mask/2
is useful to translate between
modifier specifications and bitmasks.
any_modifier
UngrabWindow is the ProXL window where the grab is in effect.