find-line

   

Given a graphical location in the buffer, returns the line at that location.

Only valid when the buffer is viewed.

• (send a-wx:media-edit find-line y on-it?) -> small integer
      y : inexact real
      on-it? = null : boxed boolean or null

  The on-it? box is filled with #t if the line actually touches this position, or #f otherwise, unless on-it? is null. (A large enough y will always return the last line number, but will set onit to #f.)