8.11 DUIM-Gadgets Module
gadget-key-press-callback
Generic function
Summary
Returns the key-press callback for the specified gadget.
Signature
gadget-key-press-callback gadget => key-press-callback
Arguments
- gadget
- An instance of type
<collection-gadget>.
Values
- key-press-callback
-
An instance of type
false-or(<command>, <function>).
Library
duim-gadgets
Module
duim-gadgets
Description
Returns the key-press callback for gadget. The key-press callback is the callback invoked when a key on the keyboard is pressed while the gadget has focus. They are of most use in tab controls, list controls, table controls, graph controls, and tree controls.
In Windows, a good use for the key-press callback would be to mirror the behavior of Windows Explorer, where typing a filename, or part of a filename, selects the first file in the current folder whose name matches that typed.
See also
gadget-key-press-callback-setter, page 568
<list-control>, page 601
<tab-control>, page 656
<table-control>, page 666
<tree-control>, page 679