Try it this way;

Perl> $pid = system 1, 'perl', '-E"sleep 20; say q[done]"';;
Perl> print kill 0, $pid while sleep 1;;
1
1
1
1
1
1
1
1
1
1
1
1
done
1
0
0
0
0
0
0
0
[download]

Hey BrowserUK, thanks again for the reply!

Humm.... I was going to do your example but your first line confused me a bit... Sorry, I'm not brand new to
Perl or anything like that but I'm definitely no expert.

But since my script uses Gtk2, I can't really use the "Sleep" command in the final 'production' script, since
the regular 'sleep' command will pause the processing of Gtk events.

But for pure testing purposes only I tried this and it seemed to work:


my $pid = system 1, ".\\bg_script.pl $ARG1 \"$ARG2\" $ARG3 $ARG4";
print "\$pid == '$pid'\n";

while (kill 0, $pid)
{
    print kill 0, $pid;
    print "\n";
    sleep 1;
}
print "\n\nOUT OF WHILE LOOP\n\n";



______________OUTPUT______________

C:\Script_dir>main_script.pl

$pid == '3144'
1
1
1
1
1
1
0
OUT OF WHILE LOOP
[download]


Nice, so it looks like its working that way.... Weird, do you think I had a typo the first time I posted
that, or do you think I can't set it to a variable and check it that way?

And just so you know, in my final script that was working before, with Proc::Background, which was before
I attempted using the CavaPackager to turn this into a standalone executable. I was using a while loop and the
usleep command from --> "use Time::HiRes qw( usleep );" which sleeps so quickly that I was able to continue
processing Gtk commands during each loop. I can show the code for that if your interested...


But anyway, in terms of the Win32::Process, when reading the cpan page for Proc::Background, it sounded like
that Proc::Background Module when run on Win32 it automatically uses the Win32::Process Module.
Is that right, or to try that Win32::Process, do I need to specifically call that, because it looks
like there is quite a good bit of a difference between the two?


Thanks Again,
Matt

But since my script uses Gtk2, I can't really use the "Sleep" command in the final 'production' script, since the regular 'sleep' command will pause the processing of Gtk events.

I've never used gtk2, but it presumably has repeating timers like Tk. So, set up a repeating timer that does the kill.

Nice, so it looks like its working that way.... Weird, do you think I had a typo the first time I posted that, or do you think I can't set it to a variable and check it that way?

Dunno about a typo; but I strongly recommend you use 'perl' as the second arg to system.:

my $pid = system 1, 'perl', ".\\bg_script.pl $ARG1 \"$ARG2\" $ARG3 $AR
+G4";
[download]

Without that, perl starts a shell, and the shell invokes perl; but the pid you get back is that of the shell not perl, so it doesn't tell you when the perl process ends.

I attempted using the CavaPackager t

Sorry. I have no knowledge of that at all.

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