Webmaster Forum / Perl / Tk / July 2005

In the program,I write :
----------------------
use Tk;
use constant LGUEUR => 400;

$ perl -v
This is perl, v5.8.7 built for cygwin-thread-multi-64int
---
$ make

Looking for some advice.
I have an application in Perl Tk that requires mirrored text.
I've played with the scale method on the canvas and it works beautifully
with a scale factor of -1 for every object on the canvas, including the

Unfortunately, "Mastering Perl/Tk" has little to say about Optionmenus.
Below is some code to construct an Optionmenu. My problem is that I
would like to set the initial value of the menu to "5", but Optionmenu
seems to have its own idea what the initial value should be ("1"). Is ...

I have prepared this small test-case:
use Tk;
use Tk::DialogBox;
my $top = MainWindow->new();

I am trying to make a form where the label is next to the
entry. i.e. I want the label right justified and the entry
left justified. I have tried every combination of settings I
can think of. I have managed to get the labels to line up

Howdy,
Perl 5.6.8, Tk.pm 8.4
I have constructed several derived frames and several derived
toplevels. I would now like to pack the frames into the toplevels.

I am trying to make a screen to collect login information. I
have it working from an example in a book but it has
scroll-bars on both horiz and vert. I have tried to change
it to drop the unneeded scroll-bars but I can not seem to

On Jul 21, 2005, at 9:21 AM, lusol wrote:

my platform is Perl V. 5.8.4 under WinXP
whats the best way to start a nonblocking system call from a perlscript
with reading and displaying the output of the system call from STDOUT (for
example the output of PPM)

Is it possible to embed an application (X11 or not) into a Tk window
that is spawned by Tk using the exec command?  I am running Tk and X11
in cygwin.  Or possibly is there another Tk command that allows one to
place this spawned window in the tk window hierarchy?

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I want to display an array that has hyphens in the items. They are not being
displayed in a listbox widget. Is there a way to do this?
Tnx
Tony

I can't figure out what I am doing wrong here.
My goal was to intercept incoming single scan lines (i.e. y constant, x
changing) and draw the scans as I get them. I set up this simple test,
and the canvas comes out blank. I seem to be missing something...

Encountering an odd problem.
If I define Unicode text into a hash using conventional
means (&define_codes_method1), my Tk output appears
correctly (other than two Chinese characters showing