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">eglQueryAPI - 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="eglQueryAPI"> 1102f4aeb0Sopenharmony_ci <div class="titlepage"/> 1202f4aeb0Sopenharmony_ci <div class="refnamediv"> 1302f4aeb0Sopenharmony_ci <h2>Name</h2> 1402f4aeb0Sopenharmony_ci <p>eglQueryAPI — Query the current rendering API</p> 1502f4aeb0Sopenharmony_ci </div> 1602f4aeb0Sopenharmony_ci <div class="refsynopsisdiv"> 1702f4aeb0Sopenharmony_ci <h2>C Specification</h2> 1802f4aeb0Sopenharmony_ci <div class="funcsynopsis"> 1902f4aeb0Sopenharmony_ci <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table"> 2002f4aeb0Sopenharmony_ci <tr> 2102f4aeb0Sopenharmony_ci <td> 2202f4aeb0Sopenharmony_ci <code class="funcdef">EGLenum <strong class="fsfunc">eglQueryAPI</strong>(</code> 2302f4aeb0Sopenharmony_ci </td> 2402f4aeb0Sopenharmony_ci <td><code>void)</code>;</td> 2502f4aeb0Sopenharmony_ci <td> </td> 2602f4aeb0Sopenharmony_ci </tr> 2702f4aeb0Sopenharmony_ci </table> 2802f4aeb0Sopenharmony_ci <div class="funcprototype-spacer"> </div> 2902f4aeb0Sopenharmony_ci </div> 3002f4aeb0Sopenharmony_ci </div> 3102f4aeb0Sopenharmony_ci <div class="refsect1" id="description"> 3202f4aeb0Sopenharmony_ci <h2>Description</h2> 3302f4aeb0Sopenharmony_ci <p> 3402f4aeb0Sopenharmony_ci <code class="function">eglQueryAPI</code> returns the value of the 3502f4aeb0Sopenharmony_ci current rendering API for EGL in the thread it is called 3602f4aeb0Sopenharmony_ci from. The current rendering API is set by 3702f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>, 3802f4aeb0Sopenharmony_ci and affects the behavior of other EGL commands. 3902f4aeb0Sopenharmony_ci </p> 4002f4aeb0Sopenharmony_ci <p> 4102f4aeb0Sopenharmony_ci The value returned will be one of the valid 4202f4aeb0Sopenharmony_ci <em class="parameter"><code>api</code></em> parameters to 4302f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>, or 4402f4aeb0Sopenharmony_ci <code class="constant">EGL_NONE</code>. 4502f4aeb0Sopenharmony_ci </p> 4602f4aeb0Sopenharmony_ci </div> 4702f4aeb0Sopenharmony_ci <div class="refsect1" id="notes"> 4802f4aeb0Sopenharmony_ci <h2>Notes</h2> 4902f4aeb0Sopenharmony_ci <p> 5002f4aeb0Sopenharmony_ci <code class="function">eglQueryAPI</code> is supported only if the 5102f4aeb0Sopenharmony_ci EGL version is 1.2 or greater. 5202f4aeb0Sopenharmony_ci </p> 5302f4aeb0Sopenharmony_ci <p> 5402f4aeb0Sopenharmony_ci The initial value of the current rendering API is 5502f4aeb0Sopenharmony_ci <code class="constant">EGL_OPENGL_ES_API</code> unless OpenGL ES is 5602f4aeb0Sopenharmony_ci not supported by an implementation, in which case the 5702f4aeb0Sopenharmony_ci initial value is <code class="constant">EGL_NONE</code> (however, 5802f4aeb0Sopenharmony_ci <code class="constant">EGL_NONE</code> is not a valid 5902f4aeb0Sopenharmony_ci <em class="parameter"><code>api</code></em> parameter to 6002f4aeb0Sopenharmony_ci <code class="function">eglQueryAPI</code>). 6102f4aeb0Sopenharmony_ci </p> 6202f4aeb0Sopenharmony_ci <p> 6302f4aeb0Sopenharmony_ci The current rendering API can be changed by calling 6402f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>. 6502f4aeb0Sopenharmony_ci </p> 6602f4aeb0Sopenharmony_ci </div> 6702f4aeb0Sopenharmony_ci <div class="refsect1" id="errors"> 6802f4aeb0Sopenharmony_ci <h2>Errors</h2> 6902f4aeb0Sopenharmony_ci <p> 7002f4aeb0Sopenharmony_ci None. 7102f4aeb0Sopenharmony_ci </p> 7202f4aeb0Sopenharmony_ci </div> 7302f4aeb0Sopenharmony_ci <div class="refsect1" id="seealso"> 7402f4aeb0Sopenharmony_ci <h2>See Also</h2> 7502f4aeb0Sopenharmony_ci <p> 7602f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglBindAPI.xhtml"><span class="citerefentry"><span class="refentrytitle">eglBindAPI</span></span></a>, 7702f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglCreateContext.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreateContext</span></span></a>, 7802f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglGetCurrentContext.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetCurrentContext</span></span></a>, 7902f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglGetCurrentDisplay.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetCurrentDisplay</span></span></a>, 8002f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglGetCurrentSurface.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetCurrentSurface</span></span></a>, 8102f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglMakeCurrent.xhtml"><span class="citerefentry"><span class="refentrytitle">eglMakeCurrent</span></span></a>, 8202f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglWaitClient.xhtml"><span class="citerefentry"><span class="refentrytitle">eglWaitClient</span></span></a>, 8302f4aeb0Sopenharmony_ci <a class="citerefentry" href="eglWaitNative.xhtml"><span class="citerefentry"><span class="refentrytitle">eglWaitNative</span></span></a> 8402f4aeb0Sopenharmony_ci </p> 8502f4aeb0Sopenharmony_ci </div> 8602f4aeb0Sopenharmony_ci <p> 8702f4aeb0Sopenharmony_ci </p> 8802f4aeb0Sopenharmony_ci <div class="refsect3" id="copyright"> 8902f4aeb0Sopenharmony_ci <img src="KhronosLogo.jpg"/> 9002f4aeb0Sopenharmony_ci <p> 9102f4aeb0Sopenharmony_ci Copyright © 2003-2014 The Khronos Group Inc. 9202f4aeb0Sopenharmony_ci Permission is hereby granted, free of charge, to any person obtaining a 9302f4aeb0Sopenharmony_ci copy of this software and/or associated documentation files (the 9402f4aeb0Sopenharmony_ci "Materials"), to deal in the Materials without restriction, including 9502f4aeb0Sopenharmony_ci without limitation the rights to use, copy, modify, merge, publish, 9602f4aeb0Sopenharmony_ci distribute, sublicense, and/or sell copies of the Materials, and to 9702f4aeb0Sopenharmony_ci permit persons to whom the Materials are furnished to do so, subject to 9802f4aeb0Sopenharmony_ci the condition that this copyright notice and permission notice shall be included 9902f4aeb0Sopenharmony_ci in all copies or substantial portions of the Materials. 10002f4aeb0Sopenharmony_ci </p> 10102f4aeb0Sopenharmony_ci </div> 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