Interestingly, there's no such a thing as Tk::Widget::EnterFocus.

The string EnterFocus is mentioned several times in the Tk source, though: 

$ ack EnterFocus ~/perl5/lib/perl5/
/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/Tk.pm
703:sub EnterFocus
720: $widget->bind('all','<Enter>','EnterFocus');

/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/Tk/Menu.pm
999: # $menu->bind('<Enter>','EnterFocus');

/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/auto/Tk/EnterF
+ocus.al
6:#line 693 "blib/lib/Tk.pm (autosplit into blib/lib/auto/Tk/EnterFocu
+s.al)"
17:sub EnterFocus
26:# end of Tk::EnterFocus

/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/auto/Tk/autosp
+lit.ix
21:sub EnterFocus 

/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/auto/Tk/.packl
+ist
483:/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/auto/Tk/En
+terFocus.al

/home/choroba/perl5/lib/perl5/x86_64-linux-thread-multi/auto/Tk/focusF
+ollowsMouse.al
10: $widget->bind('all','<Enter>','EnterFocus');

[download]

What version of Perl and Tk are you running?

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re: Tk::Error: Failed to AUTOLOAD `TK::Widget::EnterFocus' by choroba
in thread Tk::Error: Failed to AUTOLOAD `TK::Widget::EnterFocus' by andyok

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