dialog-mixin

A non-instantiable class that provides specific behavior for using the keyboard to move the keyboard focus among the controls on a window by pressing the TAB key (or arrow keys in a group of buttons) or the various ALT key shortcuts for each widget. This mixin also provides the behavior where pressing the Enter key emulates pushing the default-button that's on the window (if any), and pressing the Escape key emulates pressing the cancel-button (if any).

Usually this behavior is obtained by instantiating the built-in dialog class to create a window that is to have controls on it, but this mixin class exists separately in case this special dialog behavior needs to be mixed with other window classes.

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This page was not revised from the 10.0 page.
Created 2019.8.20.