Mousing Around in Squeak


Squeak, like most Smalltalks, was written for 3 button mice. Consequently, to get the mouse to do its stuff properly under Operating Systems which don't natively use 3 button mice requires the use of the keyboard as well.

Here is a table prepared by Andrew P. Black to illustrate the functions of the mouse buttons.


Symbolic

MacOS

Windows

3-button

Use

Red

Mouse button

Left-button

Left-button

Selecting, moving the insertion cursor

Yellow

Option-button

Right-button

Middle-button

Application-specific menus

Blue

-button

Alt-Left-button

Right-button

Window and graphics manipulation




I think I'm right in saying that the red, yellow, blue convention dates back to Xerox PARC where the mice actually had red, yellow and blue buttons. Here I'll use the red, yellow, blue convention throughout.

Getting Started and a bit about Morphic