glucheckextension(3g) [centos man page]

GLUCHECKEXTENSION(3G)						   OpenGL Manual					     GLUCHECKEXTENSION(3G)

NAME

       gluCheckExtension - determines if an extension name is supported

C SPECIFICATION

       GLboolean gluCheckExtension(const GLubyte * extName, const GLubyte * extString);

PARAMETERS

       extName
	   Specifies an extension name.

       extString
	   Specifies a space-separated list of extension names supported.

DESCRIPTION

       gluCheckExtension returns GLU_TRUE if extName is supported otherwise GLU_FALSE is returned.

       This is used to check for the presence for OpenGL, GLU, or GLX extension names by passing the extension strings returned by glGetString(),
       gluGetString(), glXGetClientString(), glXQueryExtensionsString(), or glXQueryServerString(), respectively, as extString.

NOTES

       Cases where one extension name is a substring of another are correctly handled.

       There may or may not be leading or trailing blanks in extString.

       Extension names should not contain embedded spaces.

       All strings are null-terminated.

SEE ALSO

       gluGetString(), glGetString(), glXGetClientString(), glXQueryExtensionsString(), glXQueryServerString()

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						     GLUCHECKEXTENSION(3G)

GLXGETCLIENTSTRING(3G)						   OpenGL Manual					    GLXGETCLIENTSTRING(3G)

NAME

       glXGetClientString - return a string describing the client

C SPECIFICATION

       const char * glXGetClientString(Display * dpy, int name);

PARAMETERS

       dpy
	   Specifies the connection to the X server.

       name
	   Specifies which string is returned. The symbolic constants GLX_VENDOR, GLX_VERSION, and GLX_EXTENSIONS are accepted.

DESCRIPTION

       glXGetClientString returns a string describing some aspect of the client library. The possible values for name are GLX_VENDOR, GLX_VERSION,
       and GLX_EXTENSIONS. If name is not set to one of these values, glXGetClientString returns NULL. The format and contents of the vendor
       string is implementation dependent.

       The extensions string is null-terminated and contains a space-separated list of extension names. (The extension names never contain
       spaces.) If there are no extensions to GLX, then the empty string is returned.

       The version string is laid out as follows:

       <major_version.minor_version><space><vendor-specific info>

       Both the major and minor portions of the version number are of arbitrary length. The vendor-specific information is optional. However, if
       it is present, the format and contents are implementation specific.

NOTES

       glXGetClientString is available only if the GLX version is 1.1 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.

       glXGetClientString only returns information about GLX extensions supported by the client. Call glGetString() to get a list of GL extensions
       supported by the server.

SEE ALSO

       glXQueryVersion(), glXQueryExtensionsString(), glXQueryServerString()

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						    GLXGETCLIENTSTRING(3G)