#enum GdkGravity
#Defines the reference point of a window and the meaning of coordinates passed to gtk_window_move().
#@https://developer.gnome.org/gdk3/stable/gdk3-Windows.html#GdkGravity
#enum GdkGravity
#Defines the reference point of a window and the meaning of coordinates passed to gtk_window_move().
#@https://developer.gnome.org/gdk3/stable/gdk3-Windows.html#GdkGravity