Format text in the current font and size into the
supplied text box according to the requested formatting mode,
which must be one of "left", "right", "center", "justify", or
"fulljustify". If width and height are 0, only a single line
is placed at the point (left, top) in the requested mode.
Returns the number of characters that did not fit in the
specified box. Returns 0 if all characters fit or the width and height parameters were set to 0 for
single-line formattting.