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| <title>eglGetConfigs</title> |
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| <body> |
| <div class="refentry"> |
| <a id="eglGetConfigs"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <h1>eglGetConfigs</h1> |
| <p> |
| return a list of all <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">EGL</acronym> frame buffer configurations |
| for a display |
| </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">eglGetConfigs</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>EGLConfig * <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">configs</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>EGLint <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">config_size</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>EGLint * <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">num_config</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>configs</code> |
| </em> |
| </span> |
| </dt> |
| <dd> |
| <p>Returns a list of configs.</p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <em class="parameter"> |
| <code>config_size</code> |
| </em> |
| </span> |
| </dt> |
| <dd> |
| <p>Specifies the size of the list of configs. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <em class="parameter"> |
| <code>num_config</code> |
| </em> |
| </span> |
| </dt> |
| <dd> |
| <p>Returns the number of configs returned. |
| </p> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| <code class="function">eglGetConfigs</code> returns a list of all |
| EGL frame buffer configurations that are available for the specified |
| display. |
| The items in the list can be used in any EGL function that requires |
| an EGL frame buffer configuration. |
| </p> |
| <p> |
| <em class="parameter"><code>configs</code></em> does not return values, if it is specified |
| as |
| <code class="constant">NULL</code>. This is useful for querying just the |
| number of all frame buffer configurations. |
| </p> |
| <p> |
| Use |
| <a class="citerefentry" href="eglGetConfigAttrib.html"><span class="citerefentry"><span class="refentrytitle">eglGetConfigAttrib</span></span></a> |
| to retrieve individual attribute values of a frame buffer configuration. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="errors"></a> |
| <h2>Errors</h2> |
| <p> |
| <code class="constant">EGL_FALSE</code> is returned on failure, |
| <code class="constant">EGL_TRUE</code> otherwise. |
| <em class="parameter"><code>configs</code></em> and <em class="parameter"><code>num_config</code></em> |
| are not modified when |
| <code class="constant">EGL_FALSE</code> is returned. |
| </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_PARAMETER</code> is generated if |
| <em class="parameter"><code>num_config</code></em> is <code class="constant">NULL</code>. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>See Also</h2> |
| <p> |
| <a class="citerefentry" href="eglCreateContext.html"><span class="citerefentry"><span class="refentrytitle">eglCreateContext</span></span></a>, |
| <a class="citerefentry" href="eglCreatePbufferSurface.html"><span class="citerefentry"><span class="refentrytitle">eglCreatePbufferSurface</span></span></a>, |
| <a class="citerefentry" href="eglCreatePixmapSurface.html"><span class="citerefentry"><span class="refentrytitle">eglCreatePixmapSurface</span></span></a>, |
| <a class="citerefentry" href="eglCreateWindowSurface.html"><span class="citerefentry"><span class="refentrytitle">eglCreateWindowSurface</span></span></a>, |
| <a class="citerefentry" href="eglChooseConfig.html"><span class="citerefentry"><span class="refentrytitle">eglChooseConfig</span></span></a>, |
| <a class="citerefentry" href="eglGetConfigAttrib.html"><span class="citerefentry"><span class="refentrytitle">eglGetConfigAttrib</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> |
| Copyright © 2003-2014 The Khronos Group Inc. |
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