ChoiceVBT. The main steps of a typical application are:
RadioButtonsuses margin feedback with bullets in the margin.
ChoiceVBTfor each switch and override its callback method with the action appropriate for the switch. Initialize its radio group to be the group created in step 2.
that get and set the current selection of the group of radio buttons.
The program RadioButtons.m3 illustrates the use of radio buttons. And the following images: