_gtk_text_line_char_locate

function _gtk_text_line_char_locate(

  line: PGtkTextLine;

  char_offset: gint;

  var segment: PGtkTextLineSegment;

  var any_segment: PGtkTextLineSegment;

  var seg_char_offset: gint;

  line_char_offset: Pgint

):gboolean;