Does anyone know of an online tutorial that talks about the use of the Tcl::Tk module with. I have looked at the manpages and the documentation in Tcl.pm and Tk.pm The examples in there work quite happily, but I am getting stuck with creating entry widgets and using a button to e.g. disply the sum of two numbers entered. The funny thing is that I can write the correct script for wish. Perl (bless it's heart :)) does not seem to like things like; 
entry(".e", -textvariable => var1);
entry(".e2, -textvarible => var2);
entry(".e3", -textvariable => var3);
button(".b", -command => {set var3 [expr $var1 + $var2]});
tkpack ".e";
tkpack ".e2";
tkpack ".e3";
tkpack ".b";
MainLoop;

[download]
Take all the perl bits out and you have a wish script that works perfectly. Perl complains (under -w switch) that var1 and var2 are used once only and that var3 is not initialised. If anyone could give me some pointers I would be eternally grateful. Regards to all Perl Monks.

In reply to Tcl::Tk module by greadey

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