deferred class
	EV_ABSTRACT_PICK_AND_DROPABLE

General
	cluster: interface
	description: 
		"Abstract interface for all pick and dropable classes.
		Descendants include: widgets, items and figures."
	keywords: "pick and drop, figure, widget, item"

Ancestors
	IDENTIFIED

Action sequences
	conforming_pick_actions: EV_NOTIFY_ACTION_SEQUENCE
	drop_actions: EV_PND_ACTION_SEQUENCE
	pick_actions: EV_PND_START_ACTION_SEQUENCE
	pointer_motion_actions: EV_POINTER_MOTION_ACTION_SEQUENCE

Queries
	accept_cursor: EV_POINTER_STYLE
	deny_cursor: EV_POINTER_STYLE
	id_object (an_id: INTEGER_32): ?IDENTIFIED
	is_equal (other: [like Current] EV_ABSTRACT_PICK_AND_DROPABLE): BOOLEAN
	object_id: INTEGER_32
	pebble: ANY
	pebble_function: FUNCTION [ANY, TUPLE, ANY]
	target_data_function: FUNCTION [ANY, TUPLE [ANY], EV_PND_TARGET_DATA]
	target_name: STRING_GENERAL

Commands
	copy (other: [like Current] EV_ABSTRACT_PICK_AND_DROPABLE)
	remove_pebble
	set_accept_cursor (a_cursor: [like accept_cursor] EV_POINTER_STYLE)
	set_deny_cursor (a_cursor: [like deny_cursor] EV_POINTER_STYLE)
	set_pebble (a_pebble: [like pebble] ANY)
	set_pebble_function (a_function: FUNCTION [ANY, TUPLE, ANY])
	set_target_data_function (a_function: FUNCTION [ANY, TUPLE [[like pebble] ANY], EV_PND_TARGET_DATA])
	set_target_name (a_name: STRING_GENERAL)