Here's the problem: 
\&selection("option1")

[download]

This is not a reference to subroutine called with a parameter. In fact, there's no such a thing as a code reference plus parameters. You have two options:

  1. Use a subroutine: 
    -browsecmd => sub { selection('option1') }

    [download]
  2. Tk allows you to specify a callback as an array reference (the first member is the code ref, the rest the parameters): 
    -browsercmd => [ \&selection, 'option1' ]

    [download]
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Tk::Browseentry -browsecmd Option with Subroutine Parameter by choroba
in thread Tk::Browseentry -browsecmd Option with Subroutine Parameter by erpse

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