NAME
ttk::radiobutton - Mutually exclusive option widget
SYNOPSIS
ttk::radiobutton pathName ?options?
DESCRIPTION
ttk::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.
STANDARD OPTIONS
See ttk::widget for standard themed widget options.
| -class | -compound | -cursor |
| -image | -state | -style |
| -takefocus | -text | -textvariable |
| -underline | -width |
WIDGET-SPECIFIC OPTIONS
Command-Line Name: -command
Database Name: command
Database Class: Command
A Tcl script to evaluate whenever the widget is invoked.
Command-Line Name: -value
Database Name: Value
Database Class: Value
The value to store in the associated -variable when the widget is selected.
Command-Line Name: -variable
Database Name: variable
Database Class: 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
ttk::widget, ttk::checkbutton, radiobutton
KEYWORDS
widget, button, option