public unowned Window? get_window_at_pointer (out int win_x, out int win_y)
Warning: get_window_at_pointer is deprecated since 3.0.
Obtains the window underneath the mouse pointer, returning the location of the pointer in that window in
Use get_window_at_position instead.
Returns null if the window under the mouse pointer is not known to GDK (for example, belongs to another application).
return location for x coordinate of the pointer location relative to the window origin, or null
return location for y coordinate of the pointer location relative & to the window origin, or null
the window under the mouse pointer, or null