button-match

Arguments: button-state button-form

Compares the button-state to the buttons described in button-form. button-form is recursively defined as follows:

simple-button-form | 
(only simple-button-form) |
(not button-form) |
(or button-form*) | 
(and button-form*) | 
NONE | 
nil | 
UP

Where simple-button-form can be any constant with an integer value. Examples of button-forms are:

meta-key 
(only shift-key)
(and (or shift-key meta-key) (not left-mouse-button))

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This page was not revised from the 8.1 page.
Created 2010.1.21.