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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd">
<html
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><head><title>glutSpecialFunc</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="glutSpaceballRotateFunc.3GLUT.xml" title="glutSpaceballRotateFunc"/><link rel="next" href="glutSpecialUpFunc.3GLUT.xml" title="glutSpecialUpFunc"/></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">glutSpecialFunc</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="glutSpaceballRotateFunc.3GLUT.xml">Prev</a></td><th width="60%" align="center">GLUT</th><td width="20%" align="right"><a accesskey="n" href="glutSpecialUpFunc.3GLUT.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="glutSpecialFunc.3GLUT"/><div class="titlepage"/><div class="refnamediv"><a name="glutSpecialFunc.3GLUT-name"/><h2>Name</h2><p>glutSpecialFunc — sets the special keyboard callback for the current window.</p></div><div class="refsynopsisdiv"><a name="glutSpecialFunc.3GLUT-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>void<tt>glutSpecialFunc</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>void(*<i><tt>func</tt></i>)(intkey,intx,inty));</code></td></tr></table></div><div class="refsynopsisdiv"><a name="glutSpecialFunc.3GLUT-python_spec"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code><tt>glutSpecialFunc</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code><i><tt>func</tt></i>) →<tt>None</tt></code></td></tr></table></div><div class="refsect1" lang="en"><a name="glutSpecialFunc.3GLUT-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><i><tt>func</tt></i></span></dt><dd>
The new special callback function.
</dd></dl></div></div><div class="refsect1" lang="en"><a name="glutSpecialFunc.3GLUT-description"/><h2>Description</h2><p>
<tt>glutSpecialFunc</tt> sets the special keyboard callback for the current window. The special keyboard
callback is triggered when keyboard function or directional keys are pressed. The <i><tt>key</tt></i> callback
parameter is a <tt>GLUT_KEY_</tt>* constant for the special key pressed. The <i><tt>x</tt></i> and
<i><tt>y</tt></i> callback parameters indicate the mouse in window relative coordinates when the key was
pressed. When a new window is created, no special callback is initially registered and special key strokes in the
window are ignored. Passing <tt>NULL</tt> to <tt>glutSpecialFunc</tt> disables the generation
of special callbacks.
</p><p>
During a special callback, <a href="glutGetModifiers.3GLUT.xml"><tt>glutGetModifiers</tt></a> may be called to determine the
state of modifier keys when the keystroke generating the callback occurred.
</p><p>
An implementation should do its best to provide ways to generate all the <tt>GLUT_KEY_</tt>* special keys.
The available <tt>GLUT_KEY_</tt>* values are:
</p><div class="variablelist"><dl><dt><span class="term"><tt>GLUT_KEY_F1</tt></span></dt><dd>
F1 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F2</tt></span></dt><dd>
F2 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F3</tt></span></dt><dd>
F3 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F4</tt></span></dt><dd>
F4 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F5</tt></span></dt><dd>
F5 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F6</tt></span></dt><dd>
F6 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F7</tt></span></dt><dd>
F7 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F8</tt></span></dt><dd>
F8 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F9</tt></span></dt><dd>
F9 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F10</tt></span></dt><dd>
F10 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F11</tt></span></dt><dd>
F11 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_F12</tt></span></dt><dd>
F12 function key.
</dd><dt><span class="term"><tt>GLUT_KEY_LEFT</tt></span></dt><dd>
Left directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_UP</tt></span></dt><dd>
Up directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_RIGHT</tt></span></dt><dd>
Right directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_DOWN</tt></span></dt><dd>
Down directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_PAGE_UP</tt></span></dt><dd>
Page up directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_PAGE_DOWN</tt></span></dt><dd>
Page down directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_HOME</tt></span></dt><dd>
Home directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_END</tt></span></dt><dd>
End directional key.
</dd><dt><span class="term"><tt>GLUT_KEY_INSERT</tt></span></dt><dd>
Inset directional key.
</dd></dl></div><p>
Note that the escape, backspace, and delete keys are generated as an ASCII character.
</p></div><div class="refsect1" lang="en"><a name="glutSpecialFunc.3GLUT-see_also"/><h2>See Also</h2><p>
<span class="simplelist"><a href="glutSpecialUpFunc.3GLUT.xml">glutSpecialUpFunc</a>, <a href="glutKeyboardFunc.3GLUT.xml">glutKeyboardFunc</a>, <a href="glutMouseFunc.3GLUT.xml">glutMouseFunc</a>, <a href="glutSpaceballButtonFunc.3GLUT.xml">glutSpaceballButtonFunc</a>, <a href="glutButtonBoxFunc.3GLUT.xml">glutButtonBoxFunc</a>, <a href="glutTabletButtonFunc.3GLUT.xml">glutTabletButtonFunc</a>, <a href="glutGetModifiers.3GLUT.xml">glutGetModifiers</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="glutSpaceballRotateFunc.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="glutSpecialUpFunc.3GLUT.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glutSpaceballRotateFunc</td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top">glutSpecialUpFunc</td></tr></table></div></body></html>
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