NAME
       SetRGB32CM -- Set one color register for this  ColorMap. (V39)

   SYNOPSIS
       SetRGB32CM(  cm,  n,   r,    g,    b)
                    a0  d0   d1    d2    d3

       void  SetRGB4CM( struct  ColorMap *,  ULONG,  ULONG,  ULONG ,  ULONG);

   INPUTS
	cm = colormap
       n = the number of the color register to set. Must not exceed the numbe
r of colors
	    allocated for the colormap.
       r = red level (32 bit unsigned left justified fraction)
       g = green level
       b = blue level

   RESULT
	Store the (r,g,b) triplet at index n of the  ColorMap structure.
       This function can be used to set up a  ColorMap before before
	linking it into a viewport.

   BUGS

   SEE ALSO
        GetColorMap()  GetRGB32()  SetRGB32()  SetRGB4CM()  sc:include/graphics/view.h