gluQuadricCallback

NAME

gluQuadricCallback -- define a callback for a quadrics object

C SPECIFICATION

void gluQuadricCallback(GLUquadricObj *qobj,

GLenum which,

void (*fn)() )

PARAMETERS

qobj

Specifies the quadrics object (created with gluNewQuadric)

which

Specifies the callback being defined. The only valid value is GLU_ERROR.

fn

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 fn is NULL, then any existing callback is erased.

The one legal callback is GLU_ERROR:

GLU_ERROR

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.