G'day Mj1234,

"Is there any option similar to command option for buttons which can be used if an entry is done to entry widget?"

Tk::Entry's -validatecommand option seems closest to what you want: it can specify a callback to use when the Tk::Entry widget receives input.

In that same documentation, also see the -validate and -invalidcommand options; the validate() method; and the VALIDATION section.

— Ken

In reply to Re: Perl Tk entry widget by kcott
in thread Perl Tk entry widget by Mj1234

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