I'm a newbie Tk programmer. Trying to write a simple cellular automata (Life), I wanted to use Tk simply for graphics output. Prog.structure is the following: 
$mw->bind("<KeyPress>", sub {$lifeid->cancel;exit});

init();
$lifeid = $mw->repeat( $sleeptime, \&life);
MainLoop;

sub life {updatecells();showcells()}

[download]

It <seem> to work, but I believe there are problems: generations of cells are sometimed skipped, depending on the length of $sleeptime - is it possible that &life is called again before a previous call completed?

Anyway, my question is: there is a better way than $mw->repeat to have a simple iteration of a procedure (&life) while waiting for a keypress to exit? Thanks a lot! Alessandro

In reply to Perl/Tk without events by alexxxm

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