position-location

   

Returns the graphic locaiton of a given position.

Only valid when the buffer is viewed.

• (send a-wx:media-edit position-location start x y front? at-eol? whole-line?) -> void
      start : small integer
      x = null : boxed inexact real or null
      y = null : boxed inexact real or null
      front? = #t : boolean
      at-eol? = #f : boolean
      whole-line? = #f : boolean

  The x box is filled with the x-location of the position start in buffer coordinates, unless x is null. The y box is filled with the y-location (top or bottom; see below) of the position start in buffer coordinates, unless y is null.

  See section  for a discussion of at-eol?.

  If front? is not #f, the top coordinate of the location is returned, otherwise the bottom coordinate of the location is returned.

  The top y location may be different for different positions within a line when different-sized graphic objects are used. If whole-line? is not #f, the minimum top location or maximum bottom location for the whole line is returned in y.