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Re: Clearing and entry-box in TK

by strat (Canon)
on Sep 23, 2006 at 10:08 UTC ( #574497=note: print w/replies, xml ) Need Help??

in reply to Clearing an entry-box in TK

You could work with -textvariable (instead of -text) which binds a reference to a variable to the content of the entry, e.g

use vars qw($InputText); $InputText = ""; ... my $input = $mw->Entry (-textvariable => \$InputText)->form; ... # my $guess = int ($input->get); my $guess = int( $InputText ); $InputText = ""; # empty it

Another Idea: If you just want to allow integer values to be entered, it often is a good way not to allow other input than numbers which makes errorchecking easier. Maybe Tk::NumEntry could be interesting for you, or my Tk::EntryCheck, e.g.

my $input = $mw->EntryCheck( -textvariable => \$InputText, -pattern => qr~\d~, )->form;

Best regards,
perl -e "s>>*F>e=>y)\*martinF)stronat)=>print,print v8."

Replies are listed 'Best First'.
Re^2: Clearing and entry-box in TK
by Panda (Scribe) on Sep 24, 2006 at 01:57 UTC
    Thanks strat, I'll get GrandFather to download Tk::EntryCheck so I can try the game using it as well.

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