This directory contains the GUI Builder classes.
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 Several documents describing the I/O classes are listed below:
<ul>
<li><a href="ftp://root.cern.ch/root/doc/25WritingGUI.pdf">The Chapter about Writing a Graphical User Interface in the Users Guide
    </a></li>
<li><a href="ftp://root.cern.ch/root/doc/9Graphics.pdf">The Chapter about Graphics and Graphical User Interface in the Users Guide
    </a></li>
<li><a href="http://root.cern.ch/drupal/content/how-use-root-gui-classes">How to use the ROOT GUI classes
    </a></li>
<li><a href="http://root.cern.ch/drupal/content/how-use-signalslot-communication-mechanism">How to use the Signal/Slot communication mechanism
      </a></li>
<li><a href="http://root.cern.ch/drupal/content/how-use-root-gui-builder">How to use the GUI Builder
      </a></li>
<li><a href="http://root.cern.ch/drupal/content/how-create-or-modify-style">How to Create or Modify a style
      </a></li>
</ul>
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