Package guievent:

:- builtin([
		actionListener_create / 2,
		adjustmentListener_create / 2,
		componentListener_create / 5,
		containerListener_create / 3,
		focusListener_create / 3,
		itemListener_create / 2,
		keyListener_create / 4,
		mouseListener_create / 6,
		mouseMotionListener_create / 3,
		textListener_create / 2,
		windowListener_create / 8
	]).

These predicates are used to create listeners for GUI objects. (cf JDK >= 1.1)

actionListener_create(
	+goal, -Listener)

adjustmentListener_create(
	+goal, -Listener)

componentListener_create(
	+shown_goal, +hidden_goal, +moved_goal, +resized_goal, -Listener)

containerListener_create(
	+added_goal, +removed_goal, -Listener)

focusListener_create(
	+gained_goal, +lost_goal, -Listener)

itemListener_create(
	+goal, -Listener)

keyListener_create(
	+pressed_goal, +released_goal, +typed_goal, -Listener)

mouseListener_create(
	+clicked_goal, +pressed_goal,
	+released_goal, +entered_goal, +exited_goal, -Listener)

mouseMotionListener_create(
	+dragged_goal, +moved_goal, -Listener)

textListener_create(
	+goal, -Listener)

windowListener_create(
	+activated_goal, +closed_goal,
	+closing_goal, +deactivated_goal,
	+deiconified_goal, +iconified_goal, +opened_goal, -Listener)

*_goal can be any term. If an event occurs it activates the term as a goal. If the term is a compound with a variable as its first argument, then this argument will be instantiated with the first argument.