type ::= (radio-button-choice [keyword argument]... type ... )
The component types specify the choices, with one radio button for each. The widget's value will be that of the chosen type argument. This widget matches any value that matches at least one of the specified type arguments.
The following extra properties are recognized.
You can add extra radio button items to a
widget after it has been created with the function
radio-button-choicewidget widget a new radio button item of type type.
Please note that such items added after the
widget has been created will not be properly destructed when