import grafix
    predef pencolor(clr)#0
    predef fillcolor(clr)#0
    predef fillscreen()#0
    predef penmove(x, y)#0
    predef plot(x, y)#0
    predef line(x1, y1, x2, y2)#0
    predef lineto(x, y)#0
    predef rect(x1, y1, x2, y2)#0
    predef fillrect(x1, y1, x2, y2)#0
    predef bitblt(blk, pitch, x, y, width, height)#0
    predef drawmode(mode)#0
    predef setmode(mode)#0
end
