Retrieves the iterator at buffer coordinates @x and @y.
Buffer coordinates are coordinates for the entire buffer, not just
the currently-displayed portion. If you have coordinates from an
event, you have to convert those to buffer coordinates with
[method@Gtk.TextView.window_to_buffer_coords].
Retrieves the iterator at buffer coordinates @x and @y.
Buffer coordinates are coordinates for the entire buffer, not just the currently-displayed portion. If you have coordinates from an event, you have to convert those to buffer coordinates with [method@Gtk.TextView.window_to_buffer_coords].