man/xhtml/eglCopyBuffers.html

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    <title>eglCopyBuffers</title>
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  <body>
    <div class="refentry">
      <a id="eglCopyBuffers"></a>
      <div class="titlepage"></div>
      <div xmlns="" class="refnamediv">
        <h1>eglCopyBuffers</h1>
        <p>
            copy <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">EGL</acronym> surface color buffer to a native pixmap
        </p>
      </div>
      <div class="refsynopsisdiv">
        <h2>C Specification</h2>
        <div class="funcsynopsis">
          <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
            <tr valign="bottom">
              <td>
                <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">EGLBoolean <strong class="fsfunc">eglCopyBuffers</strong>(</code>
                <td>EGLDisplay  <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">display</var>, </td>
              </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td>EGLSurface  <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">surface</var>, </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td>NativePixmapType  <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">native_pixmap</var><code>)</code></td>
            </tr>
          </table>
        </div>
      </div>
      <div class="refsect1">
        <a id="parameters"></a>
        <h2>Parameters</h2>
        <div class="variablelist">
          <dl class="variablelist">
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>display</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                        Specifies the EGL display connection.
                    </p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>surface</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                        Specifies the EGL surface whose color buffer is to be copied.
                    </p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>native_pixmap</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                        Specifies the native pixmap as target of the copy.
                    </p>
            </dd>
          </dl>
        </div>
      </div>
      <div class="refsect1">
        <a id="description"></a>
        <h2>Description</h2>
        <p>
            <code class="function">eglCopyBuffers</code> copies the color buffer of
            <em class="parameter"><code>surface</code></em> to <em class="parameter"><code>native_pixmap</code></em>.
        </p>
        <p>
            <code class="function">eglCopyBuffers</code> performs an implicit
            <a class="citerefentry" href="glFlush.html"><span class="citerefentry"><span class="refentrytitle">glFlush</span></span></a>
            before it returns. Subsequent
            GL commands may be issued immediately after calling
            <code class="function">eglCopyBuffers</code>,
            but are not executed until copying of the color buffer is completed.
        </p>
      </div>
      <div class="refsect1">
        <a id="notes"></a>
        <h2>Notes</h2>
        <p>
            The color buffer of <em class="parameter"><code>surface</code></em> is left unchanged
            after calling <code class="function">eglCopyBuffers</code>.
        </p>
      </div>
      <div class="refsect1">
        <a id="errors"></a>
        <h2>Errors</h2>
        <p>
            <code class="constant">EGL_FALSE</code> is returned if swapping of the
            surface buffers fails, <code class="constant">EGL_TRUE</code> otherwise.
        </p>
        <p>
            <code class="constant">EGL_BAD_DISPLAY</code> is generated if
            <em class="parameter"><code>display</code></em> is not an EGL display connection.
        </p>
        <p>
            <code class="constant">EGL_NOT_INITIALIZED</code> is generated if
            <em class="parameter"><code>display</code></em> has not been initialized.
        </p>
        <p>
            <code class="constant">EGL_BAD_SURFACE</code> is generated if
            <em class="parameter"><code>surface</code></em> is not an EGL drawing surface.
        </p>
        <p>
            <code class="constant">EGL_BAD_NATIVE_PIXMAP</code> is generated if
            the implementation does not support native pixmaps.
        </p>
        <p>
            <code class="constant">EGL_BAD_NATIVE_PIXMAP</code> may be generated if
            <em class="parameter"><code>native_pixmap</code></em> is not a valid native pixmap.
        </p>
        <p>
            <code class="constant">EGL_BAD_MATCH</code> is generated if
            the format of <em class="parameter"><code>native_pixmap</code></em> is not compatible
            with the color buffer of <em class="parameter"><code>surface</code></em>.
        </p>
        <p>
            <code class="constant">EGL_CONTEXT_LOST</code> is generated if a power management
            event has occurred. The application must destroy all contexts and
            reinitialise OpenGL ES state and objects to continue rendering.
        </p>
      </div>
      <div class="refsect1">
        <a id="seealso"></a>
        <h2>See Also</h2>
        <p>
            <a class="citerefentry" href="glFlush.html"><span class="citerefentry"><span class="refentrytitle">glFlush</span></span></a>,
            <a class="citerefentry" href="eglSwapBuffers.html"><span class="citerefentry"><span class="refentrytitle">eglSwapBuffers</span></span></a>
        </p>
      </div>
      <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>
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