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

-class	-compound	-cursor
-image	-state	-style
-takefocus	-text	-textvariable
-underline	-width

See the ttk_widget manual entry for details on the standard options.

WIDGET-SPECIFIC 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, identify, 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.)

STANDARD STYLES

Ttk::radiobutton widgets support the Toolbutton style in all standard themes, which is useful for creating widgets for toolbars.

SEE ALSO

ttk::widget(n), ttk::checkbutton(n), radiobutton(n)

KEYWORDS

widget, button, option