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Ruby Programming
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Variable References

Perl/Tk:  -textvariable => \$variable
          -textvariable => varRef
Ruby:     ref =
          'textvariable' => ref
          { textvariable ref }

Use TkVariable to attach a Ruby variable to a widget's value. You can then use the value accessors in TkVariable (TkVariable#value and TkVariable#value=) to affect the contents of the widget directly.

Ruby Programming
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