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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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   &#160;<span id="projectnumber">2.0</span>
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   <div id="projectbrief">Gesture Engine Interface Support</div>
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<div class="header">
  <div class="summary">
<a href="#nested-classes">Data Structures</a> &#124;
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">The Geis API Object</div>  </div>
<div class="ingroups"><a class="el" href="group__geis__v2.html">The Advanced GEIS Interface</a></div></div><!--header-->
<div class="contents">
<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.html">Geis</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Represents an instance of the gesture recognition engine.  <a href="class_geis.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:gafa6d38f736262c4c39a0265a660ae174"><td class="memItemLeft" align="right" valign="top">GEIS_VARARG <a class="el" href="class_geis.html">Geis</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#gafa6d38f736262c4c39a0265a660ae174">geis_new</a> (GeisString init_arg_name,...)</td></tr>
<tr class="memdesc:gafa6d38f736262c4c39a0265a660ae174"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes an instance of the GEIS v2.0 API.  <a href="#gafa6d38f736262c4c39a0265a660ae174"></a><br/></td></tr>
<tr class="memitem:gac8d351201dd533e41d235d5921971a9f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__geis__common.html#ga7fe40cb68bb7a98f5429284514872790">GeisStatus</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#gac8d351201dd533e41d235d5921971a9f">geis_delete</a> (<a class="el" href="class_geis.html">Geis</a> geis)</td></tr>
<tr class="memdesc:gac8d351201dd533e41d235d5921971a9f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Cleans up an instance of the GEIS v2.0 API.  <a href="#gac8d351201dd533e41d235d5921971a9f"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="member-group"></a>
Standard Initialization Arguments</h2></td></tr>
<tr><td class="ititle" colspan="2"><p><a class="anchor" id="amgrpf0ea068a72d11377b6795a36e8b5453a"></a></p>
<dl class="section user"><dt></dt><dd>These initialization arguments are defined by the GEIS v2 specification. </dd></dl>
</td></tr>
<tr class="memitem:ga59a04e73834e77bb86be85383113db34"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga59a04e73834e77bb86be85383113db34">GEIS_INIT_SERVICE_PROVIDER</a></td></tr>
<tr class="memdesc:ga59a04e73834e77bb86be85383113db34"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enables GEIS to provide a networked service.  <a href="#ga59a04e73834e77bb86be85383113db34"></a><br/></td></tr>
<tr class="memitem:ga219d08ef09bb7bd978c4c7861df55d47"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga219d08ef09bb7bd978c4c7861df55d47">GEIS_INIT_TRACK_DEVICES</a></td></tr>
<tr class="memdesc:ga219d08ef09bb7bd978c4c7861df55d47"><td class="mdescLeft">&#160;</td><td class="mdescRight">Tells GEIS to send input device events.  <a href="#ga219d08ef09bb7bd978c4c7861df55d47"></a><br/></td></tr>
<tr class="memitem:ga2374f19838707466bcfd4461c7e56e76"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga2374f19838707466bcfd4461c7e56e76">GEIS_INIT_TRACK_GESTURE_CLASSES</a></td></tr>
<tr class="memdesc:ga2374f19838707466bcfd4461c7e56e76"><td class="mdescLeft">&#160;</td><td class="mdescRight">Tells GEIS to send gesture class events.  <a href="#ga2374f19838707466bcfd4461c7e56e76"></a><br/></td></tr>
<tr class="memitem:ga7d95d77a21258fb72060395834be98a5"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga7d95d77a21258fb72060395834be98a5">GEIS_INIT_SYNCHRONOUS_START</a></td></tr>
<tr class="memdesc:ga7d95d77a21258fb72060395834be98a5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs all setup synchronously: <a class="el" href="group__geis__v2__geis.html#gafa6d38f736262c4c39a0265a660ae174" title="Initializes an instance of the GEIS v2.0 API.">geis_new()</a> will block until all setup has completed successfully or unsuccessfully.  <a href="#ga7d95d77a21258fb72060395834be98a5"></a><br/></td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2><a name="member-group"></a>
Vendor-defined Initialization Arguments</h2></td></tr>
<tr><td class="ititle" colspan="2"><p><a class="anchor" id="amgrp4d66d2ce941b48ea97d02a905b39a104"></a></p>
<dl class="section user"><dt></dt><dd>These initialization arguments are not a part of the GEIS specification and may change. </dd></dl>
</td></tr>
<tr class="memitem:gaebb4dc7061e9fe0229f98f21beda9c12"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#gaebb4dc7061e9fe0229f98f21beda9c12">GEIS_INIT_DBUS_BACKEND</a></td></tr>
<tr class="memdesc:gaebb4dc7061e9fe0229f98f21beda9c12"><td class="mdescLeft">&#160;</td><td class="mdescRight">Uses the DBus back end (default).  <a href="#gaebb4dc7061e9fe0229f98f21beda9c12"></a><br/></td></tr>
<tr class="memitem:ga010a219d4fb1db48dd5b39e2874ef8fd"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga010a219d4fb1db48dd5b39e2874ef8fd">GEIS_INIT_GRAIL_BACKEND</a></td></tr>
<tr class="memdesc:ga010a219d4fb1db48dd5b39e2874ef8fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Uses the native grail back end (fallback).  <a href="#ga010a219d4fb1db48dd5b39e2874ef8fd"></a><br/></td></tr>
<tr class="memitem:ga72e56cc4432f2f02c63723907815bedb"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga72e56cc4432f2f02c63723907815bedb">GEIS_INIT_XCB_BACKEND</a></td></tr>
<tr class="memdesc:ga72e56cc4432f2f02c63723907815bedb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Uses the grail-embedded-in-X11 back end.  <a href="#ga72e56cc4432f2f02c63723907815bedb"></a><br/></td></tr>
<tr class="memitem:ga8ec2a6cdfeef622782a0acc6643c8b48"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga8ec2a6cdfeef622782a0acc6643c8b48">GEIS_INIT_NO_ATOMIC_GESTURES</a></td></tr>
<tr class="memdesc:ga8ec2a6cdfeef622782a0acc6643c8b48"><td class="mdescLeft">&#160;</td><td class="mdescRight">Disables the use of (GEIS v1-style) atomic gestures: only a single gesture is recognized at a time.  <a href="#ga8ec2a6cdfeef622782a0acc6643c8b48"></a><br/></td></tr>
<tr class="memitem:gadd47b674b26815cf4e1018bba5b37020"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#gadd47b674b26815cf4e1018bba5b37020">GEIS_INIT_SEND_TENTATIVE_EVENTS</a></td></tr>
<tr class="memdesc:gadd47b674b26815cf4e1018bba5b37020"><td class="mdescLeft">&#160;</td><td class="mdescRight">Causes tentative events to be sent.  <a href="#gadd47b674b26815cf4e1018bba5b37020"></a><br/></td></tr>
<tr class="memitem:ga24e3d8ba5a37e37b29fcc5bc34f7c600"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__geis__v2__geis.html#ga24e3d8ba5a37e37b29fcc5bc34f7c600">GEIS_INIT_SEND_SYNCHRONOS_EVENTS</a></td></tr>
<tr class="memdesc:ga24e3d8ba5a37e37b29fcc5bc34f7c600"><td class="mdescLeft">&#160;</td><td class="mdescRight">Causes all gesture events to be sent, even if there is zero apparent time difference between the events.  <a href="#ga24e3d8ba5a37e37b29fcc5bc34f7c600"></a><br/></td></tr>
</table>
<a name="details" id="details"></a><h2>Detailed Description</h2>
<h2>Macro Definition Documentation</h2>
<a class="anchor" id="gaebb4dc7061e9fe0229f98f21beda9c12"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_DBUS_BACKEND</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Uses the DBus back end (default). </p>

</div>
</div>
<a class="anchor" id="ga010a219d4fb1db48dd5b39e2874ef8fd"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_GRAIL_BACKEND</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Uses the native grail back end (fallback). </p>

</div>
</div>
<a class="anchor" id="ga8ec2a6cdfeef622782a0acc6643c8b48"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_NO_ATOMIC_GESTURES</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Disables the use of (GEIS v1-style) atomic gestures: only a single gesture is recognized at a time. </p>

</div>
</div>
<a class="anchor" id="ga24e3d8ba5a37e37b29fcc5bc34f7c600"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_SEND_SYNCHRONOS_EVENTS</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Causes all gesture events to be sent, even if there is zero apparent time difference between the events. </p>
<p>Normally all but the first consecutive event are discarded, since velocity values can not be calculated and multiple events between frame redraws are unlikely do have any value beyong consuming CPU. Setting this init value will give the events to you if you really want them. </p>

</div>
</div>
<a class="anchor" id="gadd47b674b26815cf4e1018bba5b37020"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_SEND_TENTATIVE_EVENTS</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Causes tentative events to be sent. </p>
<p>Tentative events indicate gestures may possibly be detected soon and allow early rejection if the events occur outside any area of interest. </p>

</div>
</div>
<a class="anchor" id="ga59a04e73834e77bb86be85383113db34"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_SERVICE_PROVIDER</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Enables GEIS to provide a networked service. </p>
<p>This initialization argument takes no parameters. </p>

</div>
</div>
<a class="anchor" id="ga7d95d77a21258fb72060395834be98a5"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_SYNCHRONOUS_START</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Performs all setup synchronously: <a class="el" href="group__geis__v2__geis.html#gafa6d38f736262c4c39a0265a660ae174" title="Initializes an instance of the GEIS v2.0 API.">geis_new()</a> will block until all setup has completed successfully or unsuccessfully. </p>

</div>
</div>
<a class="anchor" id="ga219d08ef09bb7bd978c4c7861df55d47"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_TRACK_DEVICES</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Tells GEIS to send input device events. </p>
<p>This initialization argument takes no parameters. </p>

</div>
</div>
<a class="anchor" id="ga2374f19838707466bcfd4461c7e56e76"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_TRACK_GESTURE_CLASSES</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Tells GEIS to send gesture class events. </p>
<p>This initialization argument takes no parameters. </p>

</div>
</div>
<a class="anchor" id="ga72e56cc4432f2f02c63723907815bedb"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GEIS_INIT_XCB_BACKEND</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Uses the grail-embedded-in-X11 back end. </p>

</div>
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<h2>Function Documentation</h2>
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          <td class="memname"><a class="el" href="group__geis__common.html#ga7fe40cb68bb7a98f5429284514872790">GeisStatus</a> geis_delete </td>
          <td>(</td>
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<p>Cleans up an instance of the GEIS v2.0 API. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">geis</td><td>An instance of the GEIS v2.0 API.</td></tr>
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<p>Tears down the instance of the API and releases any resources associated with that instance. </p>

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          <td class="memname">GEIS_VARARG <a class="el" href="class_geis.html">Geis</a> geis_new </td>
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          <td class="paramname"><em>init_arg_name</em>, </td>
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<p>Initializes an instance of the GEIS v2.0 API. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramdir">[in]</td><td class="paramname">init_arg_name</td><td>The name of an initializaer argument. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">...</td><td>The remaining initializaer arguments.</td></tr>
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<p>A NULL-terminated list of zero or more initialization arguments is passed to this function to create and initialize a connection to a gesture recognition engine.</p>
<p>If no initialization arguments are passed, the parameter list consists of a single NULL argument. </p>

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