sdk/docs/man/html/eglQueryAPI.xhtml

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    <title xmlns:xlink="http://www.w3.org/1999/xlink">eglQueryAPI - EGL Reference Pages</title>
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    <div class="refentry" id="eglQueryAPI">
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      <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">
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              <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">eglQueryAPI</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>
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            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,
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            permit persons to whom the Materials are furnished to do so, subject to
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