help sharing Tk::Photo object

[email protected] (Brent Baccala)
Newsgroups perl.ithreads
Message-ID <[email protected]>
Hello,

I'm having problems writing my first ithreads program.

I need a Tk::Photo object shared between threads.  The idea is
to load images in background while the GUI keeps running.

Can it be done?

As soon as I do a &share($fimage), I can no longer do anything
useful with $fimage.  I get complaints like:

   Use of uninitialized value in subroutine entry at 
   /usr/lib/perl5/Tk/Submethods.pm line 37.
   image "" doesn't exist at /usr/lib/perl5/Tk/Submethods.pm line 37.

$fimage is a blessed object reference.

I'm running a pretty stock Debian "edge" system, Perl 5.8.8.

Here's a test program that shows my pain.
Usage is "program imagefile".

Thank you for any help you can give.



#!/usr/bin/perl -w

use strict;

use Tk;
use Tk::JPEG;
use threads;
use threads::shared;

my $file = shift;

my $mw  = MainWindow->new();
my $fimage = $mw->Photo(-file => $file);

# THIS MAKES ALL THE DIFFERENCE
# &share($fimage);

print $fimage->width, "\n";




					-bwb

					Brent Baccala
					[email protected]
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