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><head><title>glutButtonBoxFunc</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="glutBitmapWidth.3GLUT.xml" title="glutBitmapWidth"/><link rel="next" href="glutChangeToMenuEntry.3GLUT.xml" title="glutChangeToMenuEntry"/></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">glutButtonBoxFunc</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="glutBitmapWidth.3GLUT.xml">Prev</a> </td><th width="60%" align="center">GLUT</th><td width="20%" align="right"> <a accesskey="n" href="glutChangeToMenuEntry.3GLUT.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="glutButtonBoxFunc.3GLUT"/><div class="titlepage"/><div class="refnamediv"><a name="glutButtonBoxFunc.3GLUT-name"/><h2>Name</h2><p>glutButtonBoxFunc &#8212; sets the dial &amp; button box button callback for the current window.</p></div><div class="refsynopsisdiv"><a name="glutButtonBoxFunc.3GLUT-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>void <tt>glutButtonBoxFunc</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code>void (*<i><tt>func</tt></i>)(int button, int state));</code></td></tr></table></div><div class="refsynopsisdiv"><a name="glutButtonBoxFunc.3GLUT-python_spec"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code><tt>glutButtonBoxFunc</tt></code></td><td valign="top"><code>(</code></td><td valign="top"><code><i><tt>func</tt></i>) &#8594; <tt>None</tt></code></td></tr></table></div><div class="refsect1" lang="en"><a name="glutButtonBoxFunc.3GLUT-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><i><tt>func</tt></i></span></dt><dd>
						The new button box callback function.
					</dd></dl></div></div><div class="refsect1" lang="en"><a name="glutButtonBoxFunc.3GLUT-description"/><h2>Description</h2><p>
			<tt>glutButtonBoxFunc</tt> sets the dial &amp; button box button callback for the current window. The dial
			&amp; button box button callback for a window is called when the window has dial &amp; button box input focus
			(normally, when the mouse is in the window) and the user generates dial &amp; button box button presses. The button
			parameter will be the button number (starting at one). The number of available dial &amp; button box buttons can be
			determined with glutDeviceGet(<tt>GLUT_NUM_BUTTON_BOX_BUTTONS</tt>). The state is either
			<tt>GLUT_UP</tt> or <tt>GLUT_DOWN</tt> indicating whether the callback was due to a release or
			press respectively.
		</p><p>
			Registering a dial &amp; button box button callback when a dial &amp; button box device is not available is ineffectual
			and not an error. In this case, no dial &amp; button box button callbacks will be generated.
		</p><p>
			Passing <tt>NULL</tt> to <tt>glutButtonBoxFunc</tt> disables the generation of dial &amp;
			button box button callbacks. When a new window is created, no dial &amp; button box button callback is initially
			registered.
		</p></div><div class="refsect1" lang="en"><a name="glutButtonBoxFunc.3GLUT-see_also"/><h2>See Also</h2><p>
			<span class="simplelist"><a href="glutDialsFunc.3GLUT.xml">glutDialsFunc</a>, <a href="glutDeviceGet.3GLUT.xml">glutDeviceGet</a>, <a href="glutSpaceballButtonFunc.3GLUT.xml">glutSpaceballButtonFunc</a>, <a href="glutTabletButtonFunc.3GLUT.xml">glutTabletButtonFunc</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="glutBitmapWidth.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="glutChangeToMenuEntry.3GLUT.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glutBitmapWidth </td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top"> glutChangeToMenuEntry</td></tr></table></div></body></html>