Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   29550 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

GLXCOPYCONTEXT(3G)		 OpenGL Manual		    GLXCOPYCONTEXT(3G)

NAME
       glXCopyContext - copy state from one rendering context to another

C SPECIFICATION
       void glXCopyContext(Display * dpy, GLXContext src, GLXContext dst,
			   unsigned long mask);

PARAMETERS
       dpy
	   Specifies the connection to the X server.

       src
	   Specifies the source context.

       dst
	   Specifies the destination context.

       mask
	   Specifies which portions of src state are to be copied to dst.

DESCRIPTION
       glXCopyContext copies selected groups of state variables from src to
       dst.  mask indicates which groups of state variables are to be copied.
       mask contains the bitwise OR of the same symbolic names that are passed
       to the GL command glPushAttrib(). The single symbolic constant
       GLX_ALL_ATTRIB_BITS can be used to copy the maximum possible portion of
       rendering state.

       The copy can be done only if the renderers named by src and dst share
       an address space. Two rendering contexts share an address space if both
       are nondirect using the same server, or if both are direct and owned by
       a single process. Note that in the nondirect case it is not necessary
       for the calling threads to share an address space, only for their
       related rendering contexts to share an address space.

       Not all values for GL state can be copied. For example, pixel pack and
       unpack state, render mode state, and select and feedback state are not
       copied. The state that can be copied is exactly the state that is
       manipulated by the GL command glPushAttrib().

       An implicit glFlush() is done by glXCopyContext if src is the current
       context for the calling thread.

NOTES
       A process is a single execution environment, implemented in a single
       address space, consisting of one or more threads.

       A thread is one of a set of subprocesses that share a single address
       space, but maintain separate program counters, stack spaces, and other
       related global data. A thread that is the only member of its subprocess
       group is equivalent to a process.

ERRORS
       BadMatch is generated if rendering contexts src and dst do not share an
       address space or were not created with respect to the same screen.

       BadAccess is generated if dst is current to any thread (including the
       calling thread) at the time glXCopyContext is called.

       GLXBadCurrentWindow is generated if src is the current context and the
       current drawable is a window that is no longer valid.

       GLXBadContext is generated if either src or dst is not a valid GLX
       context.

SEE ALSO
       glPushAttrib(), glXCreateContext(), glXIsDirect()

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		    GLXCOPYCONTEXT(3G)

Vote for polarhome