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Man Pages


Manual Reference Pages  -  TTK_CHECKBUTTON (n)

NAME

ttk::checkbutton - On/off widget

CONTENTS

Synopsis
Description

SYNOPSIS

ttk::checkbutton pathName ?options?

   








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DESCRIPTION

A ttk::checkbutton widget is used to show or change a setting. It has two states, selected and deselected. The state of the checkbutton may be linked to a Tcl variable.

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-Line Name:-command
Database Name:command
Database Class:Command

A Tcl script to execute whenever the widget is invoked.

Command-Line Name:-offvalue
Database Name:offValue
Database Class:OffValue

The value to store in the associated -variable when the widget is deselected. Defaults to 0.

Command-Line Name:-onvalue
Database Name:onValue
Database Class:OnValue

The value to store in the associated -variable when the widget is selected. Defaults to 1.

Command-Line Name:-variable
Database Name:variable
Database Class:Variable

The name of a global variable whose value is linked to the widget. Defaults to the widget pathname if not specified.

WIDGET COMMAND

In addition to the standard cget, configure, identify, instate, and state commands, checkbuttons support the following additional widget commands:
pathname invoke
  Toggles between the selected and deselected states and evaluates the associated -command. If the widget is currently selected, sets the -variable to the -offvalue and deselects the widget; otherwise, sets the -variable to the -onvalue Returns the result of the -command.

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 -onvalue, 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(n), ttk::radiobutton(n), checkbutton(n)

KEYWORDS

widget, button, toggle, check, option
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Tk TTK::CHECKBUTTON (n) 8.5

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