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GLXCREATENEWCONTEXT(3G) 		  OpenGL Manual 		  GLXCREATENEWCONTEXT(3G)

NAME
       glXCreateNewContext - create a new GLX rendering context

C SPECIFICATION
       GLXContext glXCreateNewContext(Display * dpy, GLXFBConfig config, int render_type,
				      GLXContext share_list, Bool direct);

PARAMETERS
       dpy
	   Specifies the connection to the X server.

       config
	   Specifies the GLXFBConfig structure with the desired attributes for the context.

       render_type
	   Specifies the type of the context to be created. Must be one of GLX_RGBA_TYPE or
	   GLX_COLOR_INDEX_TYPE.

       share_list
	   Specifies the context with which to share display lists.  NULL indicates that no
	   sharing is to take place.

       share_list
	   Specifies whether rendering is to be done with a direct connection to the graphics
	   system if possible (True) or through the X server (False).

DESCRIPTION
       glXCreateNewContext creates a GLX rendering context and returns its handle. This context
       can be used to render into GLX windows, pixmaps, or pixel buffers. If glXCreateNewContext
       fails to create a rendering context, NULL is returned.

       If render_type is GLX_RGBA_TYPE, then a context that supports RGBA rendering is created.
       If config is GLX_COLOR_INDEX_TYPE, then context supporting color-index rendering is
       created.

       If render_type is not NULL, then all display-list indexes and definitions are shared by
       context render_type and by the newly created context. An arbitrary number of contexts can
       share a single display-list space. However, all rendering contexts that share a single
       display-list space must themselves exist in the same 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.

       If share_list is True, then a direct-rendering context is created if the implementation
       supports direct rendering, if the connection is to an X server that is local, and if a
       direct-rendering context is available. (An implementation may return an indirect context
       when share_list is True.) If share_list is False, then a rendering context that renders
       through the X server is always created. Direct rendering provides a performance advantage
       in some implementations. However, direct-rendering contexts cannot be shared outside a
       single process, and they may be unable to render to GLX pixmaps.

NOTES
       glXCreateNewContext is available only if the GLX version is 1.3 or greater.

       If the GLX version is 1.1 or 1.0, the GL version must be 1.0. If the GLX version is 1.2,
       then the GL version must be 1.1. If the GLX version is 1.3, then the GL version must be
       1.2.

ERRORS
       NULL is returned if execution fails on the client side.

       GLXBadContext is generated if render_type is not a GLX context and is not NULL.

       GLXBadFBConfig is generated if config is not a valid GLXFBConfig.

       BadMatch is generated if the context to be created would not share the address space or
       the screen of the context specified by render_type.

       BadAlloc is generated if the server does not have enough resources to allocate the new
       context.

       BadValue is generated if config is not a valid visual (for example, if a particular GLX
       implementation does not support it).

SEE ALSO
       glXChooseFBConfig(), glXCreateContext(), glXDestroyContext(), glXGetFBConfigs(),
       glXGetFBConfigAttrib(), glXIsDirect(), glXMakeContextCurrent()

COPYRIGHT
       Copyright (C) 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				    06/10/2014			  GLXCREATENEWCONTEXT(3G)
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