radiobutton(3tcl)
NAME
ttk::radiobutton - Mutually exclusive option widget
SYNOPSIS
ttk::radiobutton pathName ?options?
DESCRIPTION
radiobutton widgets are used in groups to show or change a set of mutually-exclusive options. Radiobuttons are linked to a Tcl variable, and
have an associated value; when a radiobutton is clicked, it sets the
variable to its associated value. -class -compound -cursor -image
-state -style -takefocus -text -textvariable -underline -width
OPTIONS
[-command command] A Tcl script to evaluate whenever the widget is
invoked. [-value Value] The value to store in the associated -variable
when the widget is selected. [-variable variable] The name of a global
variable whose value is linked to the widget. Default value is
::selectedButton.
WIDGET COMMAND
In addition to the standard cget, configure, instate, and state commands, radiobuttons support the following additional widget commands:
- pathname invoke
- Sets the -variable to the -value, selects the widget, and evaluates the associated -command. Returns the result of the -command, or the empty string if no -command is specified.
WIDGET STATES
The widget does not respond to user input if the disabled state is set.
The widget sets the selected state whenever the linked -variable is set
to the widget's -value, and clears it otherwise. The widget sets the
alternate state whenever the linked -variable is unset. (The alternate
state may be used to indicate a ``tri-state'' or ``indeterminate''
selection.)
SEE ALSO
widget(n), keynav(n), checkbutton(n)
KEYWORDS
- widget, button, option