getIterAtLocation
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.
Return
true if the position is over text
Parameters
iter
a GtkTextIter
x
x position, in buffer coordinates
y
y position, in buffer coordinates