Re-reading this post, I'm just going to say sorry. I'm not sure I even understand what I meant. Thanks for everything so far, and if you don't mind, I'll post the offending code and you guys can look over it. 
sub go
{
    foreach (1..5)
    {
        &neighbors_non_edge($radiovar);
        &neighbors_corners($radiovar);
        &neighbors_edge($radiovar);
        &update_go_array();
        &print_array();
    }
}

[download]

This sub calls the five subs, in order, to complete a single iteration of the whole program. It's nested in a for loop because I want it to happen five times (printing out each time separately, clearing/refreshing the previous printout on the screen as it goes). This sub is outside the tk gui (so outside MainLoop) as are the five subs it calls.
The code for the button in the gui that calls sub go is
$start_button =$top->Button(-text => "Start the Process", -foreground 
+=>"red", -command => sub{go()});

[download]

I've been looking into the tk::after module. Is that something that I should implement here? If so, where?

thanks again,
john



Faster, faster, faster....till the thrill of speed overcomes the fear of death -Daniel Keys Moran

In reply to Re: refreshing a GUI by ralfthewise
in thread refreshing a GUI by ralfthewise

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