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ttk::checkbutton

NAME
SYNOPSIS
DESCRIPTION
STANDARD OPTIONS
WIDGET-SPECIFIC OPTIONS
WIDGET COMMAND
WIDGET STATES
STANDARD STYLES
SEE ALSO
KEYWORDS

___________________________

NAME

ttk::checkbutton − On/off widget

SYNOPSIS

ttk::checkbutton pathName ?options? ___________________________

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.)

STANDARD STYLES

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

KEYWORDS

widget, button, toggle, check, option

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