This functions wraps the controls label so that each of its lines becomes at
most @a width pixels wide if possible (the lines are broken at words
boundaries so it might not be the case if words are too long). If @e width
- is negative, no wrapping is done.
+ is negative, no wrapping is done. Note that this width is not
+ necessarily the total width of the control, since a few pixels for the
+ border (depending on the controls border style) may be added.
@since 2.6.2
*/