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215</style>
216    <title>eglWaitGL</title>
217    <meta name="generator" content="DocBook XSL Stylesheets V1.78.1" />
218  </head>
219  <body>
220    <div class="refentry">
221      <a id="eglWaitGL"></a>
222      <div class="titlepage"></div>
223      <div xmlns="" class="refnamediv">
224        <h1>eglWaitGL</h1>
225        <p>
226            Complete GL execution prior to subsequent native rendering
227            calls
228        </p>
229      </div>
230      <div class="refsynopsisdiv">
231        <h2>C Specification</h2>
232        <div class="funcsynopsis">
233          <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
234            <tr valign="bottom">
235              <td>
236                <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">EGLBoolean <strong class="fsfunc">eglWaitGL</strong>(</code>
237                <td xmlns="http://www.w3.org/1999/xhtml"><code>void)</code>;</td>
238                <td xmlns="http://www.w3.org/1999/xhtml"> </td>
239              </td>
240            </tr>
241          </table>
242        </div>
243      </div>
244      <div class="refsect1">
245        <a id="description"></a>
246        <h2>Description</h2>
247        <p>
248            All OpenGL ES rendering calls for the currently bound OpenGL
249            ES context made prior to <code class="function">eglWaitGL</code> are
250            guaranteed to be executed before native rendering calls made
251            after <code class="function">eglWaitGL</code>. The same result can be
252            achieved using
253            <a class="citerefentry" href="glFinish.html"><span class="citerefentry"><span class="refentrytitle">glFinish</span></span></a>.
254        </p>
255        <p>
256            <code class="function">eglWaitGL</code> is ignored if there is no
257            current EGL rendering context for OpenGL ES.
258        </p>
259      </div>
260      <div class="refsect1">
261        <a id="notes"></a>
262        <h2>Notes</h2>
263        <p>
264            <code class="function">eglWaitClient</code> is supported only if the
265            EGL version is 1.2 or greater.
266        </p>
267        <p>
268            <code class="function">eglWaitClient</code> is a generalized version
269            of <code class="function">eglWaitGL</code>, supporting multiple
270            client APIs. For backwards compatibility,
271            <code class="function">eglWaitGL</code> continues to be supported and
272            is equivalent to the series of commands
273        </p>
274        <pre class="programlisting">
275              EGLenum api = <code class="function">eglQueryAPI</code>();
276              <code class="function">eglBindAPI</code>(<code class="constant">EGL_OPENGL_ES_API</code>);
277              <code class="function">eglWaitClient</code>();
278              <code class="function">eglBindAPI</code>(api);
279        </pre>
280      </div>
281      <div class="refsect1">
282        <a id="errors"></a>
283        <h2>Errors</h2>
284        <p>
285            <code class="constant">EGL_FALSE</code> is returned if
286            <code class="function">eglWaitGL</code> fails,
287            <code class="constant">EGL_TRUE</code> otherwise.
288        </p>
289        <p>
290            <code class="constant">EGL_BAD_CURRENT_SURFACE</code> is generated if
291            the surface associated with the current context has a native
292            window or pixmap, and that window or pixmap is no longer
293            valid.
294        </p>
295      </div>
296      <div class="refsect1">
297        <a id="seealso"></a>
298        <h2>See Also</h2>
299        <p>
300            <a class="citerefentry" href="glFinish.html"><span class="citerefentry"><span class="refentrytitle">glFinish</span></span></a>,
301            <a class="citerefentry" href="eglWaitClient.html"><span class="citerefentry"><span class="refentrytitle">eglWaitClient</span></span></a>
302            <a class="citerefentry" href="eglWaitNative.html"><span class="citerefentry"><span class="refentrytitle">eglWaitNative</span></span></a>
303        </p>
304      </div>
305      <div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>
306Copyright © 2003-2014 The Khronos Group Inc.
307Permission is hereby granted, free of charge, to any person obtaining a
308copy of this software and/or associated documentation files (the
309"Materials"), to deal in the Materials without restriction, including
310without limitation the rights to use, copy, modify, merge, publish,
311distribute, sublicense, and/or sell copies of the Materials, and to
312permit persons to whom the Materials are furnished to do so, subject to
313the condition that this copyright notice and permission notice shall be included
314in all copies or substantial portions of the Materials.
315</div>
316    </div>
317  </body>
318</html>
319