glxqueryextension(3) [xfree86 man page]

GLXQUERYEXTENSION()													       GLXQUERYEXTENSION()

NAME

       glXQueryExtension - indicate whether the GLX extension is supported

C SPECIFICATION

       Bool glXQueryExtension( Display *dpy,
			       int *errorBase,
			       int *eventBase )

       delim $$

PARAMETERS

       dpy	  Specifies the connection to the X server.

       errorBase  Returns the base error code of the GLX server extension.

       eventBase  Returns the base event code of the GLX server extension.

DESCRIPTION

       glXQueryExtension  returns  True  if the X server of connection dpy supports the GLX extension, False otherwise.  If True is returned, then
       errorBase and eventBase return the error base and event base of the GLX extension.  Otherwise, errorBase and eventBase are unchanged.

       errorBase and eventBase do not return values if they are specified as NULL.

NOTES

       eventBase is included for future extensions.  GLX does not currently define any events.

SEE ALSO

       glXQueryVersion

															       GLXQUERYEXTENSION()

GLXGETCLIENTSTRING()													      GLXGETCLIENTSTRING()

NAME

       glXGetClientString - return a string describing the client

C SPECIFICATION

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

       delim $$

PARAMETERS

       dpy   Specifies the connection to the X server.

       name  Specifies which string is returned.  One of GLX_VENDOR, GLX_VERSION, or GLX_EXTENSIONS.

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 spa-
       ces.)  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.

       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

															      GLXGETCLIENTSTRING()