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| <title xmlns:xlink="http://www.w3.org/1999/xlink">eglQueryAPI - EGL Reference Pages</title> |
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| <header/> |
| <div class="refentry" id="eglQueryAPI"> |
| <div class="titlepage"/> |
| <div class="refnamediv"> |
| <h2>Name</h2> |
| <p>eglQueryAPI — Query the current rendering API</p> |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2>C Specification</h2> |
| <div class="funcsynopsis"> |
| <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table"> |
| <tr> |
| <td> |
| <code class="funcdef">EGLenum <strong class="fsfunc">eglQueryAPI</strong>(</code> |
| </td> |
| <td><code>void)</code>;</td> |
| <td> </td> |
| </tr> |
| </table> |
| <div class="funcprototype-spacer"> </div> |
| </div> |
| </div> |
| <div class="refsect1" id="description"> |
| <h2>Description</h2> |
| <p> |
| <code class="function">eglQueryAPI</code> returns the value of the |
| current rendering API for EGL in the thread it is called |
| from. The current rendering API is set by |
| <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>, |
| and affects the behavior of other EGL commands. |
| </p> |
| <p> |
| The value returned will be one of the valid |
| <em class="parameter"><code>api</code></em> parameters to |
| <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>, or |
| <code class="constant">EGL_NONE</code>. |
| </p> |
| </div> |
| <div class="refsect1" id="notes"> |
| <h2>Notes</h2> |
| <p> |
| <code class="function">eglQueryAPI</code> is supported only if the |
| EGL version is 1.2 or greater. |
| </p> |
| <p> |
| The initial value of the current rendering API is |
| <code class="constant">EGL_OPENGL_ES_API</code> unless OpenGL ES is |
| not supported by an implementation, in which case the |
| initial value is <code class="constant">EGL_NONE</code> (however, |
| <code class="constant">EGL_NONE</code> is not a valid |
| <em class="parameter"><code>api</code></em> parameter to |
| <code class="function">eglBindAPI</code>). |
| </p> |
| <p> |
| The current rendering API can be changed by calling |
| <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>. |
| </p> |
| </div> |
| <div class="refsect1" id="errors"> |
| <h2>Errors</h2> |
| <p> |
| None. |
| </p> |
| </div> |
| <div class="refsect1" id="seealso"> |
| <h2>See Also</h2> |
| <p> |
| <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>, |
| <a class="citerefentry" href="eglCreateContext.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreateContext</span></span></a>, |
| <a class="citerefentry" href="eglGetCurrentContext.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetCurrentContext</span></span></a>, |
| <a class="citerefentry" href="eglGetCurrentDisplay.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetCurrentDisplay</span></span></a>, |
| <a class="citerefentry" href="eglGetCurrentSurface.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetCurrentSurface</span></span></a>, |
| <a class="citerefentry" href="eglMakeCurrent.xhtml"><span class="citerefentry"><span class="refentrytitle">eglMakeCurrent</span></span></a>, |
| <a class="citerefentry" href="eglWaitClient.xhtml"><span class="citerefentry"><span class="refentrytitle">eglWaitClient</span></span></a>, |
| <a class="citerefentry" href="eglWaitNative.xhtml"><span class="citerefentry"><span class="refentrytitle">eglWaitNative</span></span></a> |
| </p> |
| </div> |
| <p> |
| </p> |
| <div class="refsect3" id="copyright"> |
| <img src="KhronosLogo.jpg"/> |
| <p> |
| Copyright © 2003-2014 The Khronos Group Inc. |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and/or associated documentation files (the |
| "Materials"), to deal in the Materials without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Materials, and to |
| permit persons to whom the Materials are furnished to do so, subject to |
| the condition that this copyright notice and permission notice shall be included |
| in all copies or substantial portions of the Materials. |
| </p> |
| </div> |
| <p> |
| </p> |
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