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Perl/Tk uses references all the time, so we need to be familiar to the different syntaxes.

In my examples to come, I often use slicing on hashes, because hashes are in most cases the best structure to store information, and you often receive a bunch of different data at once.

Do not write a & before a normal function call: that is ancient Perl4 syntax!

TclTk vs Perl/Tk -2 OO in Perl -1

Created by Mark Overmeer with PPresenter on 22 May 2000.