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<?xml version="1.0" encoding="ISO-8859-1"?>
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><head><title>glutLayerGet</title><link rel="stylesheet" href="style.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.59.1"/><link rel="home" href="index.xml" title="PyOpenGL 2.0.1.07 Man Pages"/><link rel="up" href="reference-GLUT.xml" title="GLUT"/><link rel="previous" href="glutKeyboardUpFunc.3GLUT.xml" title="glutKeyboardUpFunc"/><link rel="next" href="glutMainLoop.3GLUT.xml" title="glutMainLoop"/></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">glutLayerGet</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="glutKeyboardUpFunc.3GLUT.xml">Prev</a></td><th width="60%" align="center">GLUT</th><td width="20%" align="right"><a accesskey="n" href="glutMainLoop.3GLUT.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="glutLayerGet.3GLUT"/><div class="titlepage"/><div class="refnamediv"><a name="glutLayerGet.3GLUT-name"/><h2>Name</h2><p>glutLayerGet — retrieves GLUT state pertaining to the layers of the current window.</p></div><div class="refsynopsisdiv"><a name="glutLayerGet.3GLUT-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>int<tt>glutLayerGet</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>GLenum<i><tt>info</tt></i>);</code></td></tr></table></div><div class="refsynopsisdiv"><a name="glutLayerGet.3GLUT-python_spec"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code><tt>glutLayerGet</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code><i><tt>info</tt></i>) →<tt>None</tt></code></td></tr></table></div><div class="refsect1" lang="en"><a name="glutLayerGet.3GLUT-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><i><tt>info</tt></i></span></dt><dd><p>
Name of device information to retrieve.
</p><div class="variablelist"><dl><dt><span class="term"><tt>GLUT_OVERLAY_POSSIBLE</tt></span></dt><dd>
Whether an overlay could be established for the current window given the current initial
display mode. If false, <a href="glutEstablishOverlay.3GLUT.xml"><tt>glutEstablishOverlay</tt></a> will fail
with a fatal error if called.
</dd><dt><span class="term"><tt>GLUT_LAYER_IN_USE</tt></span></dt><dd>
Either <tt>GLUT_NORMAL</tt> or <tt>GLUT_OVERLAY</tt> depending on
whether the normal plane or overlay is the layer in use.
</dd><dt><span class="term"><tt>GLUT_HAS_OVERLAY</tt></span></dt><dd>
If the current window has an overlay established.
</dd><dt><span class="term"><tt>GLUT_TRANSPARENT_INDEX</tt></span></dt><dd>
The transparent color index of the overlay of the current window; negative one is returned if
no overlay is in use.
</dd><dt><span class="term"><tt>GLUT_NORMAL_DAMAGED</tt></span></dt><dd>
True if the normal plane of the current window has damaged (by window system activity) since
the last display callback was triggered. Calling <a href="glutPostRedisplay.3GLUT.xml"><tt>glutPostRedisplay</tt></a> will not set this true.
</dd><dt><span class="term"><tt>GLUT_OVERLAY_DAMAGED</tt></span></dt><dd>
True if the overlay plane of the current window has damaged (by window system activity) since
the last display callback was triggered. Calling <a href="glutPostRedisplay.3GLUT.xml"><tt>glutPostRedisplay</tt></a> or <a href="glutPostOverlayRedisplay.3GLUT.xml"><tt>glutPostOverlayRedisplay</tt></a> will not set this true. Negative one is
returned if no overlay is in use.
</dd></dl></div></dd></dl></div></div><div class="refsect1" lang="en"><a name="glutLayerGet.3GLUT-description"/><h2>Description</h2><p>
<tt>glutLayerGet</tt> retrieves GLUT layer information for the current window represented by integers. The
<i><tt>info</tt></i> parameter determines what type of layer information to return.
</p></div><div class="refsect1" lang="en"><a name="glutLayerGet.3GLUT-see_also"/><h2>See Also</h2><p>
<span class="simplelist"><a href="glutEstablishOverlay.3GLUT.xml">glutEstablishOverlay</a>, <a href="glutUseOverlay.3GLUT.xml">glutUseOverlay</a>, <a href="glutCreateWindow.3GLUT.xml">glutCreateWindow</a>, <a href="glutSetColor.3GLUT.xml">glutSetColor</a></span>
</p></div></div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="glutKeyboardUpFunc.3GLUT.xml">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="reference-GLUT.xml">Up</a></td><td width="40%" align="right"><a accesskey="n" href="glutMainLoop.3GLUT.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glutKeyboardUpFunc</td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top">glutMainLoop</td></tr></table></div></body></html>
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