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"text/html; charset=UTF-8" /><title>glXCreateGLXPixmap
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.73.2" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glXCreateGLXPixmap"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glXCreateGLXPixmap — create an off-screen GLX rendering area
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">GLXPixmap
<b class=
"fsfunc">glXCreateGLXPixmap
</b>(
</code></td><td>Display *
</td><td><var class=
"pdparam">dpy
</var>,
</td></tr><tr><td> </td><td>XVisualInfo *
</td><td><var class=
"pdparam">vis
</var>,
</td></tr><tr><td> </td><td>Pixmap
</td><td><var class=
"pdparam">pixmap
</var><code>)
</code>;
</td></tr></table></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>dpy
</code></em></span></dt><dd><p>
4 Specifies the connection to the X server.
5 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>vis
</code></em></span></dt><dd><p>
6 Specifies the visual that defines the structure of the rendering area.
7 It is a pointer to an
<code class=
"constant">XVisualInfo
</code> structure,
8 not a visual ID or a pointer to a
<code class=
"constant">Visual
</code>.
9 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>pixmap
</code></em></span></dt><dd><p>
10 Specifies the X pixmap that will be used as the front left color buffer
11 of the off-screen rendering area.
12 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
13 <code class=
"function">glXCreateGLXPixmap
</code> creates an off-screen rendering area and returns its XID.
14 Any GLX rendering context that was created with respect to
<em class=
"parameter"><code>vis
</code></em>
15 can be used to render into this off-screen area.
16 Use
<a class=
"citerefentry" href=
"glXMakeCurrent.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXMakeCurrent
</span></span></a> to associate the rendering area with a GLX
19 The X pixmap identified by
<em class=
"parameter"><code>pixmap
</code></em> is used as the front left buffer of the
20 resulting off-screen rendering area.
21 All other buffers specified by
<em class=
"parameter"><code>vis
</code></em>,
22 including color buffers other than the front left buffer,
23 are created without externally visible names.
24 GLX pixmaps with double-buffering are supported.
25 However,
<a class=
"citerefentry" href=
"glXSwapBuffers.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXSwapBuffers
</span></span></a> is ignored by these pixmaps.
27 Some implementations may not support GLX pixmaps with direct rendering
29 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p>
30 <code class=
"constant">XVisualInfo
</code> is defined in
<span class=
"emphasis"><em>Xutil.h.
</em></span>
31 It is a structure that includes
<span class=
"emphasis"><em>visual
</em></span>,
<span class=
"emphasis"><em>visualID
</em></span>,
<span class=
"emphasis"><em>screen
</em></span>, and
32 <span class=
"emphasis"><em>depth
</em></span> elements.
33 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"errors"></a><h2>Errors
</h2><p>
34 <code class=
"constant">BadMatch
</code> is generated if the depth of
<em class=
"parameter"><code>pixmap
</code></em> does not match
35 the depth value reported by core X11 for
<em class=
"parameter"><code>vis
</code></em>,
36 or if
<em class=
"parameter"><code>pixmap
</code></em> was not created with respect to the same screen as
<em class=
"parameter"><code>vis
</code></em>.
38 <code class=
"constant">BadValue
</code> is generated
39 if
<em class=
"parameter"><code>vis
</code></em> is not a valid XVisualInfo pointer (for example, if a
40 particular GLX implementation does not support this visual).
42 <code class=
"constant">BadPixmap
</code> is generated if
<em class=
"parameter"><code>pixmap
</code></em> is not a valid pixmap.
44 <code class=
"constant">BadAlloc
</code> is generated if the server cannot allocate the GLX
46 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
47 <a class=
"citerefentry" href=
"glXCreateContext.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXCreateContext
</span></span></a>,
48 <a class=
"citerefentry" href=
"glXCreatePixmap.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXCreatePixmap
</span></span></a>,
49 <a class=
"citerefentry" href=
"glXDestroyGLXPixmap.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXDestroyGLXPixmap
</span></span></a>,
50 <a class=
"citerefentry" href=
"glXIsDirect.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXIsDirect
</span></span></a>,
51 <a class=
"citerefentry" href=
"glXMakeCurrent.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glXMakeCurrent
</span></span></a>
52 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
53 Copyright
<span class=
"trademark"></span>©
1991-
2006
54 Silicon Graphics, Inc. This document is licensed under the SGI
55 Free Software B License. For details, see
56 <a class=
"ulink" href=
"http://oss.sgi.com/projects/FreeB/" target=
"_top">http://oss.sgi.com/projects/FreeB/
</a>.
57 </p></div></div></body></html>