i am trying to use a lab entry widget .. Wheni click the button it displays the test.mrc not the value i typed in the entry here is the code 
$output = 'test.mrc';
my  $output_entry = $mrc_frame->LabEntry(
        -label=>'Output File Name',
        -labelPack=>[qw/-side left -anchor w/],
        -labelFont=>'9x13bold',
        -relief=>'flat',
        -textvariable=>\$output,
        -width=>15,
        );
my $info_test = $mrc_frame->Button(
       -text => 'Generate & View',
       -font => $gui_font,
       -background =>'#336699',
       -foreground =>'white',
       -padx=>4,
       -pady=>$button_pady,
       -command =>[sub{
         printf "pdb2mrc $_[0] $_[1]";                                
+   },$input_file,$output]
      )->pack(-pady=>4, -side=>'left');

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wat am i missing out here ? Sandeep

In reply to Tk lab entry widget by sandeep.ses

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