glgetstring(3g) [xfree86 man page]

GLGETSTRING(3G) 														   GLGETSTRING(3G)

NAME

       - return a string describing the current GL connection

C SPECIFICATION

       const GLubyte* glGetString( GLenum name )

PARAMETERS

       name  Specifies a symbolic constant, one of GL_VENDOR, GL_RENDERER, GL_VERSION, or GL_EXTENSIONS.

DESCRIPTION

       glGetString returns a pointer to a static string describing some aspect of the current GL connection.  name can be one of the following:

       GL_VENDOR	   Returns the company responsible for this GL implementation.	This name does not change from release to release.

       GL_RENDERER	   Returns  the  name  of the renderer.  This name is typically specific to a particular configuration of a hardware plat-
			   form.  It does not change from release to release.

       GL_VERSION	   Returns a version or release number.

       GL_EXTENSIONS	   Returns a space-separated list of supported extensions to GL.

       Because the GL does not include queries for the performance characteristics of an implementation, some applications are written	to  recog-
       nize  known  platforms  and  modify  their  GL  usage based on known performance characteristics of these platforms.  Strings GL_VENDOR and
       GL_RENDERER together uniquely specify a platform. They do not change from release to release and should	be  used  by  platform-recognition
       algorithms.

       Some applications want to make use of features that are not part of the standard GL. These features may be implemented as extensions to the
       standard GL.  The GL_EXTENSIONS string is a space-separated list of supported GL extensions.  (Extension names never contain a space  char-
       acter.)

       The GL_VERSION string begins with a version number.  The version number uses one of these forms:

       major_number.minor_number
       major_number.minor_number.release_number

       Vendor-specific	information  may  follow  the version number. Its  depends on the implementation, but a space always separates the version
       number and the vendor-specific information.

       All strings are null-terminated.

NOTES

       If an error is generated, glGetString returns 0.

       The client and server may support different versions or extensions.  glGetString always returns a compatible  version  number  or  list	of
       extensions.  The release number always describes the server.

ERRORS

       GL_INVALID_ENUM is generated if name is not an accepted value.

       GL_INVALID_OPERATION is generated if glGetString is executed between the execution of glBegin and the corresponding execution of glEnd.

																   GLGETSTRING(3G)

GLGETSTRING(3G) 														   GLGETSTRING(3G)

NAME

       glGetString - return a string describing the current GL connection

C SPECIFICATION

       const GLubyte * glGetString( GLenum name )

PARAMETERS

       name  Specifies a symbolic constant, one of GL_VENDOR, GL_RENDERER, GL_VERSION, or GL_EXTENSIONS.

DESCRIPTION

       glGetString returns a pointer to a static string describing some aspect of the current GL connection.  name can be one of the following:

       GL_VENDOR	   Returns the company responsible for this GL implementation.	This name does not change from release to release.

       GL_RENDERER	   Returns  the  name  of the renderer.  This name is typically specific to a particular configuration of a hardware plat-
			   form.  It does not change from release to release.

       GL_VERSION	   Returns a version or release number.

       GL_EXTENSIONS	   Returns a space-separated list of supported extensions to GL.

       Because the GL does not include queries for the performance characteristics of an implementation, some applications are written	to  recog-
       nize  known  platforms  and  modify  their  GL  usage based on known performance characteristics of these platforms.  Strings GL_VENDOR and
       GL_RENDERER together uniquely specify a platform. They do not change from release to release and should	be  used  by  platform-recognition
       algorithms.

       Some applications want to make use of features that are not part of the standard GL. These features may be implemented as extensions to the
       standard GL.  The GL_EXTENSIONS string is a space-separated list of supported GL extensions.  (Extension names never contain a space  char-
       acter.)

       The GL_VERSION string begins with a version number.  The version number uses one of these forms:

       major_number.minor_number
       major_number.minor_number.release_number

       Vendor-specific	information  may  follow  the version number. Its  depends on the implementation, but a space always separates the version
       number and the vendor-specific information.

       All strings are null-terminated.

NOTES

       If an error is generated, glGetString returns 0.

       The client and server may support different versions or extensions.  glGetString always returns a compatible  version  number  or  list	of
       extensions.  The release number always describes the server.

ERRORS

       GL_INVALID_ENUM is generated if name is not an accepted value.

       GL_INVALID_OPERATION is generated if glGetString is executed between the execution of glBegin and the corresponding execution of glEnd.

																   GLGETSTRING(3G)