Tk::DialogBox - create and manipulate a dialog screen.


Tk::DialogBox - create and manipulate a dialog screen.


    use Tk::DialogBox
    $d = $top->DialogBox(-title => "Title", -buttons => ["OK", "Cancel"]);
    $w = $d->add(Widget, args);
    $button = $d->Show;


DialogBox is very similar to Dialog except that it allows any widget in the top Frame. DialogBox creates two Frames, top and bottom. The bottom Frame shows all the specified Buttons, lined up from left to right. The top Frame acts as a container for all other widgets that can be added with the add() method.


The options recognized by DialogBox are as follows:

Specify the title of the DialogBox. If this is not set, then the name of the program is used.

The button names to display in the bottom Frame. This is a reference to an array of strings containing the text to put on each Button. There is no default value for this. If you do not specify any button names, no Buttons are displayed.

Specifies the default Button that is considered invoked when user presses <Return> on the DialogBox. This Button is highlighted. If no default Button is specified, then the first element of the array whose reference is passed to the -buttons option is used as the default.


DialogBox supports only two methods as of now:

add(widget, options)
Add the widget indicated by widget. Widget can be the name of any Tk widget (standard or contributed). options are the options that the widget accepts. The widget is advertised as a subwidget of DialogBox. The first character of widget is lower-cased and used as the advertised name.

Displays the Dialog until the user invokes one of the Buttons in the bottom Frame. If the grab type -global is specified, then Show uses that grab; otherwise it defaults to a local grab. Returns the name of the Button invoked.

The actual Dialog is shown using the Popup method. Any other options supplied to Show are passed to Popup, and can be used to position the Dialog on the screen. Please read the Tk::Popup manpage for details.


The subwidget reference to the top half of the DialogBox widget, the Frame containing widgets added by the add method.

The subwidget reference to the bottom half of the DialogBox widget, the Frame containing the Button widgets.

Individual subwidget references to the Buttons in the DialogBox widget. The subwidget name is the string B_ concatenated with the Button's -text value.


There is no way of removing a widget once it has been added to the top frame, unless you access the top subwidget and go through the child widgets.

There is no control over the appearance of the Buttons in the bottom Frame nor is there any way to control the placement of the two Frames with respect to each other.


Rajappa Iyer

This code is distributed under the same terms as Perl.

 Tk::DialogBox - create and manipulate a dialog screen.