GLXCREATENEWCONTEXT(3G) OpenGL Manual GLXCREATENEWCONTEXT(3G)
glXCreateNewContext - create a new GLX rendering context
GLXContext glXCreateNewContext(Display * dpy, GLXFBConfig config, int render_type,
GLXContext share_list, Bool direct);
Specifies the connection to the X server.
Specifies the GLXFBConfig structure with the desired attributes for the context.
Specifies the type of the context to be created. Must be one of GLX_RGBA_TYPE or
Specifies the context with which to share display lists. NULL indicates that no
sharing is to take place.
Specifies whether rendering is to be done with a direct connection to the graphics
system if possible (True) or through the X server (False).
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
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.
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
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
BadValue is generated if config is not a valid visual (for example, if a particular GLX
implementation does not support it).
glXChooseFBConfig(), glXCreateContext(), glXDestroyContext(), glXGetFBConfigs(),
glXGetFBConfigAttrib(), glXIsDirect(), glXMakeContextCurrent()
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/.
opengl.org 06/10/2014 GLXCREATENEWCONTEXT(3G)