find-snip in pasteboard%

Finds the frontmost snip (after a given snip) that intersects a given location. See Basic Organization for information about snip order in pasteboards.

The result is only valid when the editor is displayed (see Basic Organization).

• (send a-pasteboard find-snip x y after) -> snip% object or #f
   x : real number
     y : real number
     after = #f : snip% object or #f

  The x and y arguments are in editor coordinates. If after is not supplied, the frontmost snip at x and y is returned, otherwise the frontmost snip behind after is returned. If after is a snip that is not in the pasteboard, #f is returned.