NAME
    RectFill -- Fill a rectangular region in a rastport.

SYNOPSIS

    RectFill( rp, xmin, ymin, xmax, ymax)
             a1  d0:16 d1:16 d2:16 d3:16

    void RectFill( struct rastport *, short, short, short, short );

FUNCTION
    Fills  the  rectangular  region  specified  by  the
    parameters  with the chosen pen  colors,  areafill
    pattern, and drawing mode. If no areafill pattern is
    specified, fill the rectangular region with the FgPen
    color, taking into account the drawing mode.

INPUTS
    rp - pointer to a rastport structure
    (xmin,ymin) (xmax,ymax) are the coordinates of the upper
            left corner and the lower right corner, respectively, of the
            rectangle.
NOTE

    The following relation MUST be true:
            (xmax >= xmin) and (ymax >= ymin)

BUGS
    Complement mode with FgPen complements all bitplanes.

SEE ALSO
    areaend() graphics/rastport.h