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<div class="header">
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<a href="#nested-classes">Data Structures</a> &#124;
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">Gesture Classes</div>  </div>
<div class="ingroups"><a class="el" href="group__geis__v2.html">The Advanced GEIS Interface</a></div></div><!--header-->
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">A defined gesture classifier.  <a href="class_geis_gesture_class.html#details">More...</a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga669430f0f291b2bcdb8bc6a8690726a4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga669430f0f291b2bcdb8bc6a8690726a4">geis_register_class_callback</a> (<a class="el" href="class_geis.html">Geis</a> geis, <a class="el" href="group__geis__v2__event__control.html#ga84e1904f0d93dd0cdbf8e2cf6eed88ea">GeisEventCallback</a> event_callback, void *context)</td></tr>
<tr class="memdesc:ga669430f0f291b2bcdb8bc6a8690726a4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Registers a callback to receive gesture class change notifications.  <a href="#ga669430f0f291b2bcdb8bc6a8690726a4"></a><br/></td></tr>
<tr class="memitem:ga9e44686371c3e59c372be2b156b55110"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga9e44686371c3e59c372be2b156b55110">geis_gesture_class_ref</a> (<a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a> gesture_class)</td></tr>
<tr class="memdesc:ga9e44686371c3e59c372be2b156b55110"><td class="mdescLeft">&#160;</td><td class="mdescRight">Increments the reference count of a gesture class object.  <a href="#ga9e44686371c3e59c372be2b156b55110"></a><br/></td></tr>
<tr class="memitem:ga7890f6fdf2e72b5e74cc49487588a616"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga7890f6fdf2e72b5e74cc49487588a616">geis_gesture_class_unref</a> (<a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a> gesture_class)</td></tr>
<tr class="memdesc:ga7890f6fdf2e72b5e74cc49487588a616"><td class="mdescLeft">&#160;</td><td class="mdescRight">Decrements the reference count of a gesture class object.  <a href="#ga7890f6fdf2e72b5e74cc49487588a616"></a><br/></td></tr>
<tr class="memitem:gacf5c481755bbfdbd56a93820ed6eda9c"><td class="memItemLeft" align="right" valign="top">GeisString&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#gacf5c481755bbfdbd56a93820ed6eda9c">geis_gesture_class_name</a> (<a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a> gesture_class)</td></tr>
<tr class="memdesc:gacf5c481755bbfdbd56a93820ed6eda9c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets the name of the gesture class.  <a href="#gacf5c481755bbfdbd56a93820ed6eda9c"></a><br/></td></tr>
<tr class="memitem:gac2f52686ed17c22ad77d74a25631039e"><td class="memItemLeft" align="right" valign="top">GeisInteger&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#gac2f52686ed17c22ad77d74a25631039e">geis_gesture_class_id</a> (<a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a> gesture_class)</td></tr>
<tr class="memdesc:gac2f52686ed17c22ad77d74a25631039e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets the numeric identifier of the gesture class.  <a href="#gac2f52686ed17c22ad77d74a25631039e"></a><br/></td></tr>
<tr class="memitem:ga09dc30a1a2bd5c857688227b67df6e4f"><td class="memItemLeft" align="right" valign="top">GeisSize&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga09dc30a1a2bd5c857688227b67df6e4f">geis_gesture_class_attr_count</a> (<a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a> gesture_class)</td></tr>
<tr class="memdesc:ga09dc30a1a2bd5c857688227b67df6e4f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets the number of attributes of the gesture class.  <a href="#ga09dc30a1a2bd5c857688227b67df6e4f"></a><br/></td></tr>
<tr class="memitem:ga0915ee8d6cf11aa83383ea6d79d6d76b"><td class="memItemLeft" align="right" valign="top">GeisAttr&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga0915ee8d6cf11aa83383ea6d79d6d76b">geis_gesture_class_attr</a> (<a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a> gesture_class, int index)</td></tr>
<tr class="memdesc:ga0915ee8d6cf11aa83383ea6d79d6d76b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gets the indicated attribute of the gesture class.  <a href="#ga0915ee8d6cf11aa83383ea6d79d6d76b"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="member-group"></a>
Gesture Class Event Attributes</h2></td></tr>
<tr class="memitem:gab2d4110cd36274a1e5bac6c2edd39510"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#gab2d4110cd36274a1e5bac6c2edd39510">GEIS_EVENT_ATTRIBUTE_CLASS</a></td></tr>
<tr class="memdesc:gab2d4110cd36274a1e5bac6c2edd39510"><td class="mdescLeft">&#160;</td><td class="mdescRight">The event attribute containing a pointer to a <a class="el" href="class_geis_gesture_class.html" title="A defined gesture classifier.">GeisGestureClass</a>.  <a href="#gab2d4110cd36274a1e5bac6c2edd39510"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="member-group"></a>
Gesture Class Attributes</h2></td></tr>
<tr class="memitem:ga46052ce0f7ccf46032ea76947e272976"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga46052ce0f7ccf46032ea76947e272976">GEIS_CLASS_ATTRIBUTE_NAME</a></td></tr>
<tr class="memdesc:ga46052ce0f7ccf46032ea76947e272976"><td class="mdescLeft">&#160;</td><td class="mdescRight">The name of the gesture class.  <a href="#ga46052ce0f7ccf46032ea76947e272976"></a><br/></td></tr>
<tr class="memitem:ga23e3699c9de9c11611e4b8f49d9b9cd7"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__class.html#ga23e3699c9de9c11611e4b8f49d9b9cd7">GEIS_CLASS_ATTRIBUTE_ID</a></td></tr>
<tr class="memdesc:ga23e3699c9de9c11611e4b8f49d9b9cd7"><td class="mdescLeft">&#160;</td><td class="mdescRight">The unique integer ID of the gesture class.  <a href="#ga23e3699c9de9c11611e4b8f49d9b9cd7"></a><br/></td></tr>
</table>
<a name="details" id="details"></a><h2>Detailed Description</h2>
<h2>Macro Definition Documentation</h2>
<a class="anchor" id="ga23e3699c9de9c11611e4b8f49d9b9cd7"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_CLASS_ATTRIBUTE_ID</td>
        </tr>
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</div><div class="memdoc">

<p>The unique integer ID of the gesture class. </p>

</div>
</div>
<a class="anchor" id="ga46052ce0f7ccf46032ea76947e272976"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_CLASS_ATTRIBUTE_NAME</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>The name of the gesture class. </p>

</div>
</div>
<a class="anchor" id="gab2d4110cd36274a1e5bac6c2edd39510"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_EVENT_ATTRIBUTE_CLASS</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>The event attribute containing a pointer to a <a class="el" href="class_geis_gesture_class.html" title="A defined gesture classifier.">GeisGestureClass</a>. </p>
<p>The GEIS_EVENT_CLASS_AVAILABLE and GEIS_EVENT_CLASS_UNAVAILABLE events should have a GEIS_ATTR_TYPE_POINTER attribute with this name. It should contain a pointer to a <a class="el" href="class_geis_gesture_class.html" title="A defined gesture classifier.">GeisGestureClass</a> describing the gesture class made available or unavailable. </p>

</div>
</div>
<h2>Function Documentation</h2>
<a class="anchor" id="ga0915ee8d6cf11aa83383ea6d79d6d76b"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">GeisAttr geis_gesture_class_attr </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a>&#160;</td>
          <td class="paramname"><em>gesture_class</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>index</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Gets the indicated attribute of the gesture class. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">gesture_class</td><td>The gesture class object. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">index</td><td>The index of the attribute to retrieve. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga09dc30a1a2bd5c857688227b67df6e4f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">GeisSize geis_gesture_class_attr_count </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a>&#160;</td>
          <td class="paramname"><em>gesture_class</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Gets the number of attributes of the gesture class. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">gesture_class</td><td>The gesture class object. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="gac2f52686ed17c22ad77d74a25631039e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">GeisInteger geis_gesture_class_id </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a>&#160;</td>
          <td class="paramname"><em>gesture_class</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Gets the numeric identifier of the gesture class. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">gesture_class</td><td>The gesture class object. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="gacf5c481755bbfdbd56a93820ed6eda9c"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">GeisString geis_gesture_class_name </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a>&#160;</td>
          <td class="paramname"><em>gesture_class</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Gets the name of the gesture class. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">gesture_class</td><td>The gesture class object. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a class="anchor" id="ga9e44686371c3e59c372be2b156b55110"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void geis_gesture_class_ref </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a>&#160;</td>
          <td class="paramname"><em>gesture_class</em></td><td>)</td>
          <td></td>
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<p>Increments the reference count of a gesture class object. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">gesture_class</td><td>The gesture class object. </td></tr>
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          <td class="memname">void geis_gesture_class_unref </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="class_geis_gesture_class.html">GeisGestureClass</a>&#160;</td>
          <td class="paramname"><em>gesture_class</em></td><td>)</td>
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<p>Decrements the reference count of a gesture class object. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">gesture_class</td><td>The gesture class object.</td></tr>
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<p>The reference count of the object is decremented and, if it reaches zero, the object is destroyed. </p>

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          <td class="memname">void geis_register_class_callback </td>
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          <td class="paramtype"><a class="el" href="class_geis.html">Geis</a>&#160;</td>
          <td class="paramname"><em>geis</em>, </td>
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          <td class="paramtype"><a class="el" href="group__geis__v2__event__control.html#ga84e1904f0d93dd0cdbf8e2cf6eed88ea">GeisEventCallback</a>&#160;</td>
          <td class="paramname"><em>event_callback</em>, </td>
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          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>context</em>&#160;</td>
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          <td>)</td>
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<p>Registers a callback to receive gesture class change notifications. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">geis</td><td>The API instance. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">event_callback</td><td>The callback function. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">context</td><td>Contextual data to be passed through to the callback.</td></tr>
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<p>This function is used to register a function to be executed when a change to the available gesture class definitions has occurred. If no function is registered, the default action is to deliver gesture class events through the main event mechanism.</p>
<p>Passing a value of GEIS_DEFAULT_EVENT_CALLBACK as the <code>event-callback</code> will reset the callback function to the default action.</p>
<p>The <code>event_callback</code> function will be executed in the same thread context as <a class="el" href="group__geis__v2__event__control.html#ga599f3dbfbb9276ee05e199c7828791d9" title="Pumps the GEIS event loop.">geis_dispatch_events()</a>. </p>

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