The function simply draws an chord.
handle must be a valid handle to a printer.
rec_x is the upper left x coordinate of the
bounding rectangle.
rec_y is the upper left y coordinate of the
bounding rectangle.
rec_x1 is the lower right x coordinate of the
bounding rectangle.
rec_y1 is the lower right y coordinate of
the bounding rectangle.
rad_x is x coordinate of the radial defining
the beginning of the chord.
rad_y is y coordinate of the radial defining
the beginning of the chord.
rad_x1 is x coordinate of the radial defining
the end of the chord.
rad_y1 is y coordinate of the radial defining
the end of the chord.