csharp
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gui-cs.Terminal.Gui
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            <article class="content wrap" id="_content" data-uid="Terminal.Gui.Responder">
  
  
  <h1 id="Terminal_Gui_Responder" data-uid="Terminal.Gui.Responder" class="text-break">Class Responder
  </h1>
  <div class="markdown level0 summary">
Responder base class implemented by objects that want to participate on keyboard and mouse input.
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><span class="xref">System.Object</span></div>
    <div class="level1"><span class="xref">Responder</span></div>
      <div class="level2"><a class="xref" href="Terminal.Gui.View.html">View</a></div>
  </div>
  <div classs="implements">
    <h5>Implements</h5>
    <div><span class="xref">System.IDisposable</span></div>
  </div>
  <div class="inheritedMembers">
    <h5>Inherited Members</h5>
    <div>
      <span class="xref">System.Object.Equals(System.Object)</span>
    </div>
    <div>
      <span class="xref">System.Object.Equals(System.Object, System.Object)</span>
    </div>
    <div>
      <span class="xref">System.Object.GetHashCode()</span>
    </div>
    <div>
      <span class="xref">System.Object.GetType()</span>
    </div>
    <div>
      <span class="xref">System.Object.MemberwiseClone()</span>
    </div>
    <div>
      <span class="xref">System.Object.ReferenceEquals(System.Object, System.Object)</span>
    </div>
    <div>
      <span class="xref">System.Object.ToString()</span>
    </div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="Terminal.Gui.html">Terminal.Gui</a></h6>
  <h6><strong>Assembly</strong>: Terminal.Gui.dll</h6>
  <h5 id="Terminal_Gui_Responder_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class Responder : IDisposable</code></pre>
  </div>
  <h3 id="properties">Properties
  </h3>
  
  
  <a id="Terminal_Gui_Responder_CanFocus_" data-uid="Terminal.Gui.Responder.CanFocus*"></a>
  <h4 id="Terminal_Gui_Responder_CanFocus" data-uid="Terminal.Gui.Responder.CanFocus">CanFocus</h4>
  <div class="markdown level1 summary">
Gets or sets a value indicating whether this <a class="xref" href="Terminal.Gui.Responder.html">Responder</a> can focus.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool CanFocus { get; set; }</code></pre>
  </div>
  <h5 class="propertyValue">Property Value</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code> if can focus; otherwise, <code>false</code>.</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_HasFocus_" data-uid="Terminal.Gui.Responder.HasFocus*"></a>
  <h4 id="Terminal_Gui_Responder_HasFocus" data-uid="Terminal.Gui.Responder.HasFocus">HasFocus</h4>
  <div class="markdown level1 summary">
Gets or sets a value indicating whether this <a class="xref" href="Terminal.Gui.Responder.html">Responder</a> has focus.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool HasFocus { get; }</code></pre>
  </div>
  <h5 class="propertyValue">Property Value</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code> if has focus; otherwise, <code>false</code>.</td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
  </h3>
  
  
  <a id="Terminal_Gui_Responder_Dispose_" data-uid="Terminal.Gui.Responder.Dispose*"></a>
  <h4 id="Terminal_Gui_Responder_Dispose" data-uid="Terminal.Gui.Responder.Dispose">Dispose()</h4>
  <div class="markdown level1 summary">
Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resource.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public void Dispose()</code></pre>
  </div>
  
  
  <a id="Terminal_Gui_Responder_Dispose_" data-uid="Terminal.Gui.Responder.Dispose*"></a>
  <h4 id="Terminal_Gui_Responder_Dispose_System_Boolean_" data-uid="Terminal.Gui.Responder.Dispose(System.Boolean)">Dispose(Boolean)</h4>
  <div class="markdown level1 summary">
Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">protected virtual void Dispose(bool disposing)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><span class="parametername">disposing</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 id="Terminal_Gui_Responder_Dispose_System_Boolean__remarks">Remarks</h5>
  <div class="markdown level1 remarks">
If disposing equals true, the method has been called directly
or indirectly by a user&apos;s code. Managed and unmanaged resources
can be disposed.
If disposing equals false, the method has been called by the
runtime from inside the finalizer and you should not reference
other objects. Only unmanaged resources can be disposed.		
</div>
  
  
  <a id="Terminal_Gui_Responder_MouseEvent_" data-uid="Terminal.Gui.Responder.MouseEvent*"></a>
  <h4 id="Terminal_Gui_Responder_MouseEvent_Terminal_Gui_MouseEvent_" data-uid="Terminal.Gui.Responder.MouseEvent(Terminal.Gui.MouseEvent)">MouseEvent(MouseEvent)</h4>
  <div class="markdown level1 summary">
Method invoked when a mouse event is generated
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool MouseEvent(MouseEvent mouseEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.MouseEvent.html">MouseEvent</a></td>
        <td><span class="parametername">mouseEvent</span></td>
        <td>Contains the details about the mouse event.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code>, if the event was handled, <code>false</code> otherwise.</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_OnEnter_" data-uid="Terminal.Gui.Responder.OnEnter*"></a>
  <h4 id="Terminal_Gui_Responder_OnEnter_Terminal_Gui_View_" data-uid="Terminal.Gui.Responder.OnEnter(Terminal.Gui.View)">OnEnter(View)</h4>
  <div class="markdown level1 summary">
Method invoked when a view gets focus.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool OnEnter(View view)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.View.html">View</a></td>
        <td><span class="parametername">view</span></td>
        <td>The view that is losing focus.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code>, if the event was handled, <code>false</code> otherwise.</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_OnKeyDown_" data-uid="Terminal.Gui.Responder.OnKeyDown*"></a>
  <h4 id="Terminal_Gui_Responder_OnKeyDown_Terminal_Gui_KeyEvent_" data-uid="Terminal.Gui.Responder.OnKeyDown(Terminal.Gui.KeyEvent)">OnKeyDown(KeyEvent)</h4>
  <div class="markdown level1 summary">
Method invoked when a key is pressed.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool OnKeyDown(KeyEvent keyEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.KeyEvent.html">KeyEvent</a></td>
        <td><span class="parametername">keyEvent</span></td>
        <td>Contains the details about the key that produced the event.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td>true if the event was handled</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_OnKeyUp_" data-uid="Terminal.Gui.Responder.OnKeyUp*"></a>
  <h4 id="Terminal_Gui_Responder_OnKeyUp_Terminal_Gui_KeyEvent_" data-uid="Terminal.Gui.Responder.OnKeyUp(Terminal.Gui.KeyEvent)">OnKeyUp(KeyEvent)</h4>
  <div class="markdown level1 summary">
Method invoked when a key is released.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool OnKeyUp(KeyEvent keyEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.KeyEvent.html">KeyEvent</a></td>
        <td><span class="parametername">keyEvent</span></td>
        <td>Contains the details about the key that produced the event.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td>true if the event was handled</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_OnLeave_" data-uid="Terminal.Gui.Responder.OnLeave*"></a>
  <h4 id="Terminal_Gui_Responder_OnLeave_Terminal_Gui_View_" data-uid="Terminal.Gui.Responder.OnLeave(Terminal.Gui.View)">OnLeave(View)</h4>
  <div class="markdown level1 summary">
Method invoked when a view loses focus.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool OnLeave(View view)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.View.html">View</a></td>
        <td><span class="parametername">view</span></td>
        <td>The view that is getting focus.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code>, if the event was handled, <code>false</code> otherwise.</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_OnMouseEnter_" data-uid="Terminal.Gui.Responder.OnMouseEnter*"></a>
  <h4 id="Terminal_Gui_Responder_OnMouseEnter_Terminal_Gui_MouseEvent_" data-uid="Terminal.Gui.Responder.OnMouseEnter(Terminal.Gui.MouseEvent)">OnMouseEnter(MouseEvent)</h4>
  <div class="markdown level1 summary">
Method invoked when a mouse event is generated for the first time.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool OnMouseEnter(MouseEvent mouseEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.MouseEvent.html">MouseEvent</a></td>
        <td><span class="parametername">mouseEvent</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code>, if the event was handled, <code>false</code> otherwise.</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_OnMouseLeave_" data-uid="Terminal.Gui.Responder.OnMouseLeave*"></a>
  <h4 id="Terminal_Gui_Responder_OnMouseLeave_Terminal_Gui_MouseEvent_" data-uid="Terminal.Gui.Responder.OnMouseLeave(Terminal.Gui.MouseEvent)">OnMouseLeave(MouseEvent)</h4>
  <div class="markdown level1 summary">
Method invoked when a mouse event is generated for the last time.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool OnMouseLeave(MouseEvent mouseEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.MouseEvent.html">MouseEvent</a></td>
        <td><span class="parametername">mouseEvent</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td><code>true</code>, if the event was handled, <code>false</code> otherwise.</td>
      </tr>
    </tbody>
  </table>
  
  
  <a id="Terminal_Gui_Responder_ProcessColdKey_" data-uid="Terminal.Gui.Responder.ProcessColdKey*"></a>
  <h4 id="Terminal_Gui_Responder_ProcessColdKey_Terminal_Gui_KeyEvent_" data-uid="Terminal.Gui.Responder.ProcessColdKey(Terminal.Gui.KeyEvent)">ProcessColdKey(KeyEvent)</h4>
  <div class="markdown level1 summary">
This method can be overwritten by views that
want to provide accelerator functionality
(Alt-key for example), but without
interefering with normal ProcessKey behavior.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool ProcessColdKey(KeyEvent keyEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.KeyEvent.html">KeyEvent</a></td>
        <td><span class="parametername">keyEvent</span></td>
        <td>Contains the details about the key that produced the event.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 id="Terminal_Gui_Responder_ProcessColdKey_Terminal_Gui_KeyEvent__remarks">Remarks</h5>
  <div class="markdown level1 remarks">
<p>
  After keys are sent to the subviews on the
  current view, all the view are
  processed and the key is passed to the views
  to allow some of them to process the keystroke
  as a cold-key. </p>
<p>
  This functionality is used, for example, by
  default buttons to act on the enter key.
  Processing this as a hot-key would prevent
  non-default buttons from consuming the enter
  keypress when they have the focus.
</p>
</div>
  
  
  <a id="Terminal_Gui_Responder_ProcessHotKey_" data-uid="Terminal.Gui.Responder.ProcessHotKey*"></a>
  <h4 id="Terminal_Gui_Responder_ProcessHotKey_Terminal_Gui_KeyEvent_" data-uid="Terminal.Gui.Responder.ProcessHotKey(Terminal.Gui.KeyEvent)">ProcessHotKey(KeyEvent)</h4>
  <div class="markdown level1 summary">
This method can be overwritten by view that
want to provide accelerator functionality
(Alt-key for example).
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool ProcessHotKey(KeyEvent kb)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.KeyEvent.html">KeyEvent</a></td>
        <td><span class="parametername">kb</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 id="Terminal_Gui_Responder_ProcessHotKey_Terminal_Gui_KeyEvent__remarks">Remarks</h5>
  <div class="markdown level1 remarks">
<p>
  Before keys are sent to the subview on the
  current view, all the views are
  processed and the key is passed to the widgets
  to allow some of them to process the keystroke
  as a hot-key. </p>
<p>
   For example, if you implement a button that
   has a hotkey ok &quot;o&quot;, you would catch the
   combination Alt-o here.  If the event is
   caught, you must return true to stop the
   keystroke from being dispatched to other
   views.
</p>
</div>
  
  
  <a id="Terminal_Gui_Responder_ProcessKey_" data-uid="Terminal.Gui.Responder.ProcessKey*"></a>
  <h4 id="Terminal_Gui_Responder_ProcessKey_Terminal_Gui_KeyEvent_" data-uid="Terminal.Gui.Responder.ProcessKey(Terminal.Gui.KeyEvent)">ProcessKey(KeyEvent)</h4>
  <div class="markdown level1 summary">
If the view is focused, gives the view a
chance to process the keystroke.
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public virtual bool ProcessKey(KeyEvent keyEvent)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Terminal.Gui.KeyEvent.html">KeyEvent</a></td>
        <td><span class="parametername">keyEvent</span></td>
        <td>Contains the details about the key that produced the event.</td>
      </tr>
    </tbody>
  </table>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">System.Boolean</span></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h5 id="Terminal_Gui_Responder_ProcessKey_Terminal_Gui_KeyEvent__remarks">Remarks</h5>
  <div class="markdown level1 remarks">
<p>
  Views can override this method if they are
  interested in processing the given keystroke.
  If they consume the keystroke, they must
  return true to stop the keystroke from being
  processed by other widgets or consumed by the
  widget engine.    If they return false, the
  keystroke will be passed using the ProcessColdKey
  method to other views to process.
</p>
<p>
  The View implementation does nothing but return false,
  so it is not necessary to call base.ProcessKey if you
  derive directly from View, but you should if you derive
  other View subclasses.
</p>
</div>
  <h3 id="implements">Implements</h3>
  <div>
      <span class="xref">System.IDisposable</span>
  </div>
</article>
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