DOKK / manpages / debian 11 / perl-tk / Tk::LabFrame.3pm.en
LabFrame(3pm) User Contributed Perl Documentation LabFrame(3pm)

Tk::LabFrame - labeled frame.

    use Tk::LabFrame;

    $f = $parent->LabFrame(?-label=>text, -labelside=>where, ...?);

LabFrame is exactly like Frame and additionally allows one to add a label to the frame.

LabFrame supports the same options as the Frame widget.

Additional options of LabFrame are:

Specifies the label's font
Specifies the label's foreground color
The text of the label to be placed with the Frame.
Where can be one of left, right, top, bottom or acrosstop. The first four work as might be expected and place the label to the left, right, above or below the frame respectively. The acrosstop creates a grooved frame around the central frame and puts the label near the northwest corner such that it appears to "overwrite" the groove.
Specifies a reference to a variable and used as an alternative to -label. If the value of the variable changes, then the widget will be updated automatically to reflect the change. Used like -textvariable.

See "Subwidget" in Tk::mega how to use advertised widgets.

  Frame used to display the border
    
  Frame used to create new LabFrame children.
    
  Label used for displaying text
    

Run the following test program to see this in action:

    use strict;
    use Tk;
    require Tk::LabFrame;
    require Tk::LabEntry;
    my $test = 'Test this';
    my $mw = Tk::MainWindow->new;
    my $f = $mw->LabFrame(-label => "This is a label",
                           -labelside => "acrosstop");
    $f->LabEntry(-label => "Testing", -textvariable => \$test)->pack;
    $f->pack;
    Tk::MainLoop;

Perhaps LabFrame should be subsumed within the generic pTk labeled widget mechanism.

Rajappa Iyer rsi@earthling.net

This code is derived from LabFrame.tcl and LabWidg.tcl in the Tix4.0 distribution by Ioi Lam. The code may be redistributed under the same terms as Perl.

2020-11-09 perl v5.32.0