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DialogBox(3)		       User Contributed Perl Documentation		     DialogBox(3)

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

	   use Tk::DialogBox
	   $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
	   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.

	   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
	   first argument.

	   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(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
	   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 rsi@earthling.net

       This code is distributed under the same terms as Perl.

perl v5.16.3				    2014-06-10				     DialogBox(3)
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