GLUQUADRICALBACK(3G)                                  GLUQUADRICALBACK(3G)



NAME
       gluQuadricCallback - define a callback for a quadrics object


C SPECIFICATION
       void gluQuadricCallback( GLUquadric* quad,
                                GLenum which,
                                GLvoid * CallBackFunc )


PARAMETERS
       quad          Specifies    the    quadrics    object    (created   with
                     gluNewQuadric).

       which         Specifies the callback being  defined.   The  only  valid
                     value is GLUEROR.

       CallBackFunc  Specifies the function to be called.

DESCRIPTION
       gluQuadricCallback  is  used  to  define a new callback to be used by a
       quadrics object.  If the specified callback is already defined, then it
       is  replaced.  If  CallBackFunc  is NUL, then any existing callback is
       erased.

       The one legal callback is GLUEROR:

       GLUEROR      The function is called when an error is encountered. Its
                      single  argument is of type GLenum, and it indicates the
                      specific  error  that   occurred.    Character   strings
                      describing  these  errors  can  be  retrieved  with  the
                      gluErrorString call.

SEE ALSO
       gluErrorString, gluNewQuadric



                                                        GLUQUADRICALBACK(3G)