The following customizations consist generally in providing specific handlers in the script of the graphic window, or in the script of a graphic view. It is better that you be familiar with editing the script of a graphic object. If you are not, visit the page about Attaching a script to a graphical object.

• When the user clicks then drags the mouse in a graphic view, or in a graphic window out of any graphic view, Smile sends pick in events to the script of the graphic view or of the graphic window.
• When the user presses a key or a key combination while a graphic window is the active window, Smile sends a keydown event to the graphic window.
• When the user resizes a graphic window, Smile sends a resized event to the graphic window.
• Overlay drawings describe how to superimpose a drawing over a graph.
• Installing widgets in a graphic window describe how to install widgets with programmable shape and colors in graphic windows, and handle the user's mouse events in the widgets in a script.

You can customize your environment to still a higher extent, as described in the following pages of Smile's documentation.

• Customizing the toolbar - you can install buttons, menus, and a message in the window's toolbar,
• Installing a contextual menu - you can install your personal contextual menu, in addition to or in place of the standard menu,
• The User Scripts menu - install your menus in the menu bar,
• The custom dialogs - make your own scripted graphical user interface.