102f4aeb0Sopenharmony_ci<?xml version="1.0" encoding="UTF-8" standalone="no"?> 202f4aeb0Sopenharmony_ci<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"> 302f4aeb0Sopenharmony_ci <head> 402f4aeb0Sopenharmony_ci <title xmlns:xlink="http://www.w3.org/1999/xlink">eglGetConfigs - EGL Reference Pages</title> 502f4aeb0Sopenharmony_ci <link rel="stylesheet" type="text/css" href="khronos-man.css"/> 602f4aeb0Sopenharmony_ci <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"/> 702f4aeb0Sopenharmony_ci </head> 802f4aeb0Sopenharmony_ci <body> 902f4aeb0Sopenharmony_ci <header/> 1002f4aeb0Sopenharmony_ci <div class="refentry" id="eglGetConfigs"> 1102f4aeb0Sopenharmony_ci <div class="titlepage"/> 1202f4aeb0Sopenharmony_ci <div class="refnamediv"> 1302f4aeb0Sopenharmony_ci <h2>Name</h2> 1402f4aeb0Sopenharmony_ci <p>eglGetConfigs — 1502f4aeb0Sopenharmony_ci return a list of all <abbr class="acronym">EGL</abbr> frame buffer configurations 1602f4aeb0Sopenharmony_ci for a display 1702f4aeb0Sopenharmony_ci </p> 1802f4aeb0Sopenharmony_ci </div> 1902f4aeb0Sopenharmony_ci <div class="refsynopsisdiv"> 2002f4aeb0Sopenharmony_ci <h2>C Specification</h2> 2102f4aeb0Sopenharmony_ci <div class="funcsynopsis"> 2202f4aeb0Sopenharmony_ci <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table"> 2302f4aeb0Sopenharmony_ci <tr> 2402f4aeb0Sopenharmony_ci <td> 2502f4aeb0Sopenharmony_ci <code class="funcdef">EGLBoolean <strong class="fsfunc">eglGetConfigs</strong>(</code> 2602f4aeb0Sopenharmony_ci </td> 2702f4aeb0Sopenharmony_ci <td>EGLDisplay <var class="pdparam">display</var>, </td> 2802f4aeb0Sopenharmony_ci </tr> 2902f4aeb0Sopenharmony_ci <tr> 3002f4aeb0Sopenharmony_ci <td> </td> 3102f4aeb0Sopenharmony_ci <td>EGLConfig * <var class="pdparam">configs</var>, </td> 3202f4aeb0Sopenharmony_ci </tr> 3302f4aeb0Sopenharmony_ci <tr> 3402f4aeb0Sopenharmony_ci <td> </td> 3502f4aeb0Sopenharmony_ci <td>EGLint <var class="pdparam">config_size</var>, </td> 3602f4aeb0Sopenharmony_ci </tr> 3702f4aeb0Sopenharmony_ci <tr> 3802f4aeb0Sopenharmony_ci <td> </td> 3902f4aeb0Sopenharmony_ci <td>EGLint * <var class="pdparam">num_config</var><code>)</code>;</td> 4002f4aeb0Sopenharmony_ci </tr> 4102f4aeb0Sopenharmony_ci </table> 4202f4aeb0Sopenharmony_ci <div class="funcprototype-spacer"> </div> 4302f4aeb0Sopenharmony_ci </div> 4402f4aeb0Sopenharmony_ci </div> 4502f4aeb0Sopenharmony_ci <div class="refsect1" id="parameters"> 4602f4aeb0Sopenharmony_ci <h2>Parameters</h2> 4702f4aeb0Sopenharmony_ci <div class="variablelist"> 4802f4aeb0Sopenharmony_ci <dl class="variablelist"> 4902f4aeb0Sopenharmony_ci <dt> 5002f4aeb0Sopenharmony_ci <span class="term"> 5102f4aeb0Sopenharmony_ci <em class="parameter"> 5202f4aeb0Sopenharmony_ci <code>display</code> 5302f4aeb0Sopenharmony_ci </em> 5402f4aeb0Sopenharmony_ci </span> 5502f4aeb0Sopenharmony_ci </dt> 5602f4aeb0Sopenharmony_ci <dd> 5702f4aeb0Sopenharmony_ci <p>Specifies the EGL display connection.</p> 5802f4aeb0Sopenharmony_ci </dd> 5902f4aeb0Sopenharmony_ci <dt> 6002f4aeb0Sopenharmony_ci <span class="term"> 6102f4aeb0Sopenharmony_ci <em class="parameter"> 6202f4aeb0Sopenharmony_ci <code>configs</code> 6302f4aeb0Sopenharmony_ci </em> 6402f4aeb0Sopenharmony_ci </span> 6502f4aeb0Sopenharmony_ci </dt> 6602f4aeb0Sopenharmony_ci <dd> 6702f4aeb0Sopenharmony_ci <p>Returns a list of configs.</p> 6802f4aeb0Sopenharmony_ci </dd> 6902f4aeb0Sopenharmony_ci <dt> 7002f4aeb0Sopenharmony_ci <span class="term"> 7102f4aeb0Sopenharmony_ci <em class="parameter"> 7202f4aeb0Sopenharmony_ci <code>config_size</code> 7302f4aeb0Sopenharmony_ci </em> 7402f4aeb0Sopenharmony_ci </span> 7502f4aeb0Sopenharmony_ci </dt> 7602f4aeb0Sopenharmony_ci <dd> 7702f4aeb0Sopenharmony_ci <p>Specifies the size of the list of configs. 7802f4aeb0Sopenharmony_ci </p> 7902f4aeb0Sopenharmony_ci </dd> 8002f4aeb0Sopenharmony_ci <dt> 8102f4aeb0Sopenharmony_ci <span class="term"> 8202f4aeb0Sopenharmony_ci <em class="parameter"> 8302f4aeb0Sopenharmony_ci <code>num_config</code> 8402f4aeb0Sopenharmony_ci </em> 8502f4aeb0Sopenharmony_ci </span> 8602f4aeb0Sopenharmony_ci </dt> 8702f4aeb0Sopenharmony_ci <dd> 8802f4aeb0Sopenharmony_ci <p>Returns the number of configs returned. 8902f4aeb0Sopenharmony_ci </p> 9002f4aeb0Sopenharmony_ci </dd> 9102f4aeb0Sopenharmony_ci </dl> 9202f4aeb0Sopenharmony_ci </div> 9302f4aeb0Sopenharmony_ci </div> 9402f4aeb0Sopenharmony_ci <div class="refsect1" id="description"> 9502f4aeb0Sopenharmony_ci <h2>Description</h2> 9602f4aeb0Sopenharmony_ci <p> 9702f4aeb0Sopenharmony_ci <code class="function">eglGetConfigs</code> returns a list of all 9802f4aeb0Sopenharmony_ci EGL frame buffer configurations that are available for the specified 9902f4aeb0Sopenharmony_ci display. 10002f4aeb0Sopenharmony_ci The items in the list can be used in any EGL function that requires 10102f4aeb0Sopenharmony_ci an EGL frame buffer configuration. 10202f4aeb0Sopenharmony_ci </p> 10302f4aeb0Sopenharmony_ci <p> 10402f4aeb0Sopenharmony_ci <em class="parameter"><code>configs</code></em> does not return values, if it is specified 10502f4aeb0Sopenharmony_ci as 10602f4aeb0Sopenharmony_ci <code class="constant">NULL</code>. This is useful for querying just the 10702f4aeb0Sopenharmony_ci number of all frame buffer configurations. 10802f4aeb0Sopenharmony_ci </p> 10902f4aeb0Sopenharmony_ci <p> 11002f4aeb0Sopenharmony_ci Use 11102f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglGetConfigAttrib.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetConfigAttrib</span></span></a> 11202f4aeb0Sopenharmony_ci to retrieve individual attribute values of a frame buffer configuration. 11302f4aeb0Sopenharmony_ci </p> 11402f4aeb0Sopenharmony_ci </div> 11502f4aeb0Sopenharmony_ci <div class="refsect1" id="errors"> 11602f4aeb0Sopenharmony_ci <h2>Errors</h2> 11702f4aeb0Sopenharmony_ci <p> 11802f4aeb0Sopenharmony_ci <code class="constant">EGL_FALSE</code> is returned on failure, 11902f4aeb0Sopenharmony_ci <code class="constant">EGL_TRUE</code> otherwise. 12002f4aeb0Sopenharmony_ci <em class="parameter"><code>configs</code></em> and <em class="parameter"><code>num_config</code></em> 12102f4aeb0Sopenharmony_ci are not modified when 12202f4aeb0Sopenharmony_ci <code class="constant">EGL_FALSE</code> is returned. 12302f4aeb0Sopenharmony_ci </p> 12402f4aeb0Sopenharmony_ci <p> 12502f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_DISPLAY</code> is generated if 12602f4aeb0Sopenharmony_ci <em class="parameter"><code>display</code></em> is not an EGL display connection. 12702f4aeb0Sopenharmony_ci </p> 12802f4aeb0Sopenharmony_ci <p> 12902f4aeb0Sopenharmony_ci <code class="constant">EGL_NOT_INITIALIZED</code> is generated if 13002f4aeb0Sopenharmony_ci <em class="parameter"><code>display</code></em> has not been initialized. 13102f4aeb0Sopenharmony_ci </p> 13202f4aeb0Sopenharmony_ci <p> 13302f4aeb0Sopenharmony_ci <code class="constant">EGL_BAD_PARAMETER</code> is generated if 13402f4aeb0Sopenharmony_ci <em class="parameter"><code>num_config</code></em> is <code class="constant">NULL</code>. 13502f4aeb0Sopenharmony_ci </p> 13602f4aeb0Sopenharmony_ci </div> 13702f4aeb0Sopenharmony_ci <div class="refsect1" id="seealso"> 13802f4aeb0Sopenharmony_ci <h2>See Also</h2> 13902f4aeb0Sopenharmony_ci <p> 14002f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglCreateContext.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreateContext</span></span></a>, 14102f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglCreatePbufferSurface.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreatePbufferSurface</span></span></a>, 14202f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglCreatePixmapSurface.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreatePixmapSurface</span></span></a>, 14302f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglCreateWindowSurface.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreateWindowSurface</span></span></a>, 14402f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglChooseConfig.xhtml"><span class="citerefentry"><span class="refentrytitle">eglChooseConfig</span></span></a>, 14502f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglGetConfigAttrib.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetConfigAttrib</span></span></a> 14602f4aeb0Sopenharmony_ci </p> 14702f4aeb0Sopenharmony_ci </div> 14802f4aeb0Sopenharmony_ci <p> 14902f4aeb0Sopenharmony_ci </p> 15002f4aeb0Sopenharmony_ci <div class="refsect3" id="copyright"> 15102f4aeb0Sopenharmony_ci <img src="KhronosLogo.jpg"/> 15202f4aeb0Sopenharmony_ci <p> 15302f4aeb0Sopenharmony_ci Copyright © 2003-2014 The Khronos Group Inc. 15402f4aeb0Sopenharmony_ci Permission is hereby granted, free of charge, to any person obtaining a 15502f4aeb0Sopenharmony_ci copy of this software and/or associated documentation files (the 15602f4aeb0Sopenharmony_ci "Materials"), to deal in the Materials without restriction, including 15702f4aeb0Sopenharmony_ci without limitation the rights to use, copy, modify, merge, publish, 15802f4aeb0Sopenharmony_ci distribute, sublicense, and/or sell copies of the Materials, and to 15902f4aeb0Sopenharmony_ci permit persons to whom the Materials are furnished to do so, subject to 16002f4aeb0Sopenharmony_ci the condition that this copyright notice and permission notice shall be included 16102f4aeb0Sopenharmony_ci in all copies or substantial portions of the Materials. 16202f4aeb0Sopenharmony_ci </p> 16302f4aeb0Sopenharmony_ci </div> 16402f4aeb0Sopenharmony_ci <p> 16502f4aeb0Sopenharmony_ci</p> 16602f4aeb0Sopenharmony_ci </div> 16702f4aeb0Sopenharmony_ci <footer/> 16802f4aeb0Sopenharmony_ci </body> 16902f4aeb0Sopenharmony_ci</html> 170
