get-snip-position-and-location

Gets a snip's item position and top left display location in editor coordinates. The return value is #t if the snip is found, #f otherwise.

When location information is requested: The result is only valid when the editor is displayed (see Basic Organization). Calling this method may force the recalculation of location information, even if the editor currently has delayed refreshing (see refresh-delayed?).

• (send a-text get-snip-position-and-location snip pos x y) -> boolean
      snip : snip% object
      pos : boxed exact non-negative integer or #f
      x = #f : boxed real number or #f
      y = #f : boxed real number or #f

  The pos box is filled with starting position of snip, unless pos is #f. The x box is filled with left location of snip in editor coordinates, unless x is #f. The y box is filled with top location of snip in editor coordinates, unless y is #f.