Gassho!
I could need a helping pair of eyes on this issue:

The general problem i'm wrestling is starting a while(1) { do_something; sleep_awhile; } block in a Perl/Tk app, and still being able to break the loop through a GUI event such as a mouse click (that is: keeping the UI alive in parallel with the while(1)-loop).


________________________________________________________
I decided basing my solution on the small Tk:waitVariableX package from Mastering Perl/Tk (EMU:O'Reilly'02, pg392-393,also on CPAN), -- in principle:
use Tk;
use lib ".";
use Tk::waitVariableX;
my $break;
sub start_it{
    $break=0; while (!$break) {
        my $result = foo($a1, $a2);
        $detail->insert("1.0", $result);
        $mw->waitVariableX(3000, \$break); # cf EMU-book
    }
}
sub stop_it {
    $break = 1;   # set by mou-click
}

[download]


________________________________________________________
For some reason i keep getting : 
Tk::Error: Failed to AUTOLOAD 'MainWindow::waitVariableX'
Carp::croak at C:/Perl/lib/Carp.pm line 269
Tk::Widget::__ANON__ at C:/Perl/site/lib/Tk/Widget.pm

[download]


________________________________________________________
TWO QUESTIONS:

(1) Specifically: Perl seems to able to locate the Tk::waitVariableX pm module (which i've placed in the "./Tk" dir), so why does Tk "Fail to AUTOLOAD" the module ...???

(2) And in general: is there a better way to solve the problem of while(1){} and a responsive GUI in Perl/Tk ?

Best regards
-- allan

===========================================================
As the eternal tranquility of Truth reveals itself to us, this very place is the Land of Lotuses

-- Hakuin Ekaku Zenji

In reply to Perl/Tk while {1} and a responsive UI by ady

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