Re: Is it possible to stop a signal callback?
On Mon, 2007-08-06 at 10:00 +0800, Ye Wenbin wrote: On Mon, 06 Aug 2007 01:35:41 +0800, zentara [EMAIL PROTECTED] wrote: Have you looked at http://forgeftp.novell.com/gtk2-perl-study/download/ it will answer alot of questions. I have read this document. It is really helpful. Don't use while(1) or sleep in a gui script, they cause malfunctions. I did not use sleep to do some work periodly. I was trying to show the signal callback will take a long time to finish. Maybe it need fork or using thread. But the problem is I don't know how to communicate with subprocess. I will try to find it. you should look at the Gtk2-Perl FAQ: http://live.gnome.org/GTK2-Perl/FrequentlyAskedQuestions especially the 'How do I keep my GUI updating while doing a long file read?' question. ciao, Emmanuele. -- Emmanuele Bassi, W: http://www.emmanuelebassi.net B: http://log.emmanuelebassi.net ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
Is it possible to stop a signal callback?
Hi,
In my application, there is a callback which may take a long time to
finish.
Is it possible to return from the callback when user really need? For
example,
code as following, can I press the button 'cancel' to stop the counting?
Is there any document about thread in Gtk2?
use Gtk2 '-init';
use Glib qw(TRUE FALSE);
my $window = Gtk2::Window-new('toplevel');
$window-signal_connect('delete_event' = sub { Gtk2-main_quit; });
my $hbox= Gtk2::HBox-new(FALSE, 0);
my $but;
$but = Gtk2::Button-new('start');
$but-signal_connect(
'clicked' = sub {
my $i = 0;
while ($i 10) {
sleep( 1 );
$i++;
print I'm working\n;
}
return FALSE;
}
);
$hbox-pack_start($but, TRUE, TRUE, 5);
$but = Gtk2::Button-new('Cancel');
$but-signal_connect(
'clicked' = sub {
die Stop it\n;
}
);
$hbox-pack_start($but, TRUE, TRUE, 5);
$window-add($hbox);
$window-show_all();
Gtk2-main;
--
Best regards,
Ye Wenbin
___
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Re: Is it possible to stop a signal callback?
On Mon, 06 Aug 2007 01:35:41 +0800, zentara [EMAIL PROTECTED] wrote: Have you looked at http://forgeftp.novell.com/gtk2-perl-study/download/ it will answer alot of questions. I have read this document. It is really helpful. Don't use while(1) or sleep in a gui script, they cause malfunctions. I did not use sleep to do some work periodly. I was trying to show the signal callback will take a long time to finish. Maybe it need fork or using thread. But the problem is I don't know how to communicate with subprocess. I will try to find it. -- Best regards, Ye Wenbin ___ gtk-perl-list mailing list gtk-perl-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-perl-list
