DialogBox(3) User Contributed Perl Documentation DialogBox(3)
Tk::DialogBox - create and manipulate a dialog screen.
$d = $top->DialogBox(-title => "Title", -buttons => ["OK", "Cancel"]);
$w = $d->add(Widget, args)->pack;
$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
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
Specifies the Button that is considered invoked when the user closes the DialogBox
using the window manager's close button. If the -cancel_button option is not given,
and if there's only one button configured, then this button is also used as the cancel
button. Otherwise no button is considered as the cancel button; in such a case Show
just returns "undef" when the user closes the DialogBox.
A callback which is executed after invoking an action to close the DialogBox, but
before restoring focus and grab information. The selected button is passed as the
Specify the widget to receive the initial focus after popping up the DialogBox. By
default the -default_button widget receives the initial focus.
A callback which is executed before displaying the DialogBox and waiting for user
input. The DialogBox itself is passed as the first argument.
DialogBox supports only two methods as of now:
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
advertized as a subwidget of DialogBox. The name of widget is lower-cased and used as
the advertised name. If multiple instances of widget are created in the DialogBox,
then only the last one gets the advertised name. add() does not automatically pack()
or grid() widget into the DialogBox.
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
Tk::Popup for details.
Close the dialogbox, by emulating a click on the default button.
top 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 firstname.lastname@example.org
This code is distributed under the same terms as Perl.
perl v5.16.3 2014-06-10 DialogBox(3)