glXCreateGLXPixmap man page on RedHat
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GLXCREATEGLXPIXMAP(3G) OpenGL Manual GLXCREATEGLXPIXMAP(3G)
NAME
glXCreateGLXPixmap - create an off-screen GLX rendering area
C SPECIFICATION
GLXPixmap glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis,
Pixmap pixmap);
PARAMETERS
dpy
Specifies the connection to the X server.
vis
Specifies the visual that defines the structure of the rendering
area. It is a pointer to an XVisualInfo structure, not a visual ID
or a pointer to a Visual.
pixmap
Specifies the X pixmap that will be used as the front left color
buffer of the off-screen rendering area.
DESCRIPTION
glXCreateGLXPixmap creates an off-screen rendering area and returns its
XID. Any GLX rendering context that was created with respect to vis can
be used to render into this off-screen area. Use glXMakeCurrent() to
associate the rendering area with a GLX rendering context.
The X pixmap identified by pixmap is used as the front left buffer of
the resulting off-screen rendering area. All other buffers specified by
vis, including color buffers other than the front left buffer, are
created without externally visible names. GLX pixmaps with
double-buffering are supported. However, glXSwapBuffers() is ignored by
these pixmaps.
Some implementations may not support GLX pixmaps with direct rendering
contexts.
NOTES
XVisualInfo is defined in Xutil.h. It is a structure that includes
visual, visualID, screen, and depth elements.
ERRORS
BadMatch is generated if the depth of pixmap does not match the depth
value reported by core X11 for vis, or if pixmap was not created with
respect to the same screen as vis.
BadValue is generated if vis is not a valid XVisualInfo pointer (for
example, if a particular GLX implementation does not support this
visual).
BadPixmap is generated if pixmap is not a valid pixmap.
BadAlloc is generated if the server cannot allocate the GLX pixmap.
SEE ALSO
glXCreateContext(), glXCreatePixmap(), glXDestroyGLXPixmap(),
glXIsDirect(), glXMakeCurrent()
COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
AUTHORS
opengl.org
opengl.org 03/16/2013 GLXCREATEGLXPIXMAP(3G)
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