textmenus.html">GoJS Intro</a>.
</p>
            <p>
              <a href="../samples/index.html#contextmenus">Related samples</a>
            </p>
            <hr>
          
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            <h4>Tools</h4>
<p>
<a href="../api/symbols/Tool.html" target="api">Tool</a>s handle all input events, such as mouse and keyboard interactions, in a Diagram.
There are many kinds of predefined Tool classes that implement all of the