
203Uitools
(Separated), shown depressed (State), tooltip-ed (Tooltip), icon-customized (CData),
91
and
deleted (by simply calling delete(hButton)).
Several button callback properties are available: ClickedCallback is invoked upon button
click; OnCallback and OffCallback are invoked when the button State changes on/off.
92
All
the standard HG properties are also accessible: UserData, Tag, Parent, ApplicationData, and
so on. Refer to the online documentation for details.
93
Modication of the ClickedCallback is an easy way to change the default gure toolbar’s behav-
ior. For example, to modify the print button’s default print action to a print-pre ...