interaction

• dragrect — Drag rectangle(s) with mouse
• edit_curv — interactive graphic curve editor
• event handler functions — Prototype of functions which may be used as event handler.
• locate — mouse selection of a set of points in a 2D axes
• rubberbox — растягиваемая рамка для прямоугольного выделения
• seteventhandler — set an event handler for the current graphic window
• twinkle — используется для мерцания графического объекта
• xclick — Wait for a mouse click or an event in a graphic window.
• xgetmouse — get the mouse events and current position