Webmaster Forum / Perl / Tk / October 2005

Suppose I have something like this:
my $mw = tkinit;
my @choices = qw(one two three);
my $be = $mw->BrowseEntry(

Someone asked a question about making Venn diagrams
using Perl, and it got me thinking about how to detect when there
is an overlapping area. Is it possible to get all objects that are
at a point on the screen?

I have created a very simple custom widget of a canvas with a filled
rectangle (see code below).  I then instantiate/create two of these
widgets on a mainwindow.  I would like to create a line between the two
rectangles... how do I span the line across two widgets?  Any help or

how can I set the background colour of a MainWindow? Is that possible?
Thanks,
Alex.

Hi, I'm new to perl-tk, but I've managed to make a window with a text
area in the middle. I have also set up a different thread to insert
text into a text area whenever a specified event occurs (recieves data
from client). This is all working together nicely, except that for the

In one of my perl/tk programs I refresh the contents of a listbox with
new data by deleting the current values and inserting new ones.  A few
bytes of memory seem to be leaked by the Listbox->insert() function
that are not recovered by the Listbox->delete() function.  Given time,

I have a question about the Tk::JComboBox package. When I run the
script below and click the down arrow to display the drop down list,
the default item ($variable) is NOT selected or hilighted in the list.
If I click anywhere else to make the list go away and then click the

Dear perl/tk friends,
I wrote a utility for linux, that shows the size of a given
directory tree and its braches.
http://tkltrans.sourceforge.net/magyar/treesize.tar.gz

I've been toying around with the KDE installation of the latest
OpenSuSE distirbution.
The KDE version is 3.4.2
Anyways, when I run Tk apps, the window manager's "maximize window"

The following program is the standard DataEntry Address TK program. I
want the text entry boxes to expand when I resize the window. Can I do
this when they are created via windowcreate. I would like the label
portion to stay as a fixed length, but the data entry portion to resize

Does anyone know a way to use a checkbutton widget in place of the
label widget in a LabFrame? My LabFrame, as it exists now, just has a
text label across the top describing the frame. What I need is to put a
checkbutton there instead in order to control some the the content

I have scroll bar code as below, it is Unix system, and it is
vertical right scroll bar.
The scrollbar show on xterm windows, but I could not drag down
the scroll bar, it stays at the top always, whenever I drag

I have a Perl/Tk program that draws arrows from a box to another to
represent operation of a system. There are many boxes and arrows are
drawn based on some user input. All that works ok. My code looks
something like this at the moment:

To begin with I am not going to include much code as my code is
extensive and it would be difficult to include enough parts to
demonstrate my problem. So I will have to make do with words.
Basically, I have been writing this code and testing it on Solaris with

Question:
I have a perl build tree on my local pc. I can run the BBCnews script
there successfully. I then share this drive. From another pc which has
my local drive mapped, I try to run this script.