NAME
DtLightGetCutOffAngle - Get the cut off angle for the given
light.
SYNOPSIS
#include <Dt.h>
int DtLightGetCutOffAngle( int lightID, float *angle )
DESCRIPTION
DtLightGetCutOffAngle() returns the lights cut off angle ,
via the pointer to the angle parameter, given the index of
the light into the light list, via the lightID parameter.
The angle is given in radians.
DIAGNOSTICS
returns one on success and zero on failure.
FILES
Link with -lDtOMio