NAME
    SetRGB4CM -- Set one color register for this colormap.

SYNOPSIS
    SetRGB4CM(  cm,  n,   r,    g,    b)
                a0  d0  d1:4  d2:4  d3:4

    void SetRGB4CM( struct colormap *, short, ubyte, ubyte, ubyte );

INPUTS
    cm = colormap
    n = the number of the color register to set. Ranges from 0 to 31
         on current amiga displays.
    r = red level (0-15)
    g = green level (0-15)
    b = blue level (0-15)

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() getrgb4() setrgb4() graphics/view.h