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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title xmlns:xlink="http://www.w3.org/1999/xlink">eglGetDisplay - EGL Reference Pages</title>
<link rel="stylesheet" type="text/css" href="khronos-man.css"/>
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<body>
<header/>
<div class="refentry" id="eglGetDisplay">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>eglGetDisplay —
return an <abbr class="acronym">EGL</abbr> display connection
</p>
</div>
<div class="refsynopsisdiv">
<h2>C Specification</h2>
<div class="funcsynopsis">
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">EGLDisplay <strong class="fsfunc">eglGetDisplay</strong>(</code>
</td>
<td>NativeDisplayType <var class="pdparam">native_display</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
</div>
</div>
<div class="refsect1" id="parameters">
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<em class="parameter">
<code>native_display</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the display to connect to.
<code class="constant">EGL_DEFAULT_DISPLAY</code> indicates the default display.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">eglGetDisplay</code> obtains the
<abbr class="acronym">EGL</abbr> display connection for the native
display <em class="parameter"><code>native_display</code></em>.
</p>
<p>
The behavior of <code class="function">eglGetDisplay</code> is similar to
that of
<a class="citerefentry" href="eglGetPlatformDisplay.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetPlatformDisplay</span></span></a>,
but is specified in terms of implementation-specific behavior
rather than platform-specific extensions. As for
<a class="citerefentry" href="eglGetPlatformDisplay.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetPlatformDisplay</span></span></a>,
EGL considers the returned <span class="type">EGLDisplay</span> as belonging
to the same platform as <em class="parameter"><code>display_id</code></em>.
However, the set of platforms to which
<em class="parameter"><code>display_id</code></em> is permitted to belong, as
well as the actual type of <em class="parameter"><code>display_id</code></em>,
are implementation-specific. If
<em class="parameter"><code>display_id</code></em> is
<code class="constant">EGL_DEFAULT_DISPLAY</code>, a <em class="firstterm">default
display</em> is returned. Multiple calls made to
<code class="function">eglGetDisplay</code> with the same
<em class="parameter"><code>display_id</code></em> will return the same
<span class="type">EGLDisplay</span> handle.
</p>
<p>
If <em class="parameter"><code>display_id</code></em> is
<code class="constant">EGL_DEFAULT_DISPLAY</code>, a default display connection is returned.
</p>
<p>
If no display connection matching <em class="parameter"><code>native_display</code></em> is
available, <code class="constant">EGL_NO_DISPLAY</code> is returned. No
error is generated.
</p>
<p>
Use <a class="citerefentry" href="eglInitialize.xhtml"><span class="citerefentry"><span class="refentrytitle">eglInitialize</span></span></a>
to initialize the display connection.
</p>
</div>
<div class="refsect1" id="seealso">
<h2>See Also</h2>
<p>
<a class="citerefentry" href="eglInitialize.xhtml"><span class="citerefentry"><span class="refentrytitle">eglInitialize</span></span></a>,
<a class="citerefentry" href="eglGetPlatformDisplay.xhtml"><span class="citerefentry"><span class="refentrytitle">eglGetPlatformDisplay</span></span></a>
</p>
</div>
<p>
</p>
<div class="refsect3" id="copyright">
<img src="KhronosLogo.jpg"/>
<p>
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,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.
</p>
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</p>
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