Generated when the pointer enters or leaves a window.
the kind of crossing that happened (GDK_NOTIFY_INFERIOR, GDK_NOTIFY_ANCESTOR, GDK_NOTIFY_VIRTUAL, GDK_NOTIFY_NONLINEAR or GDK_NOTIFY_NONLINEAR_VIRTUAL).
TRUE if window is the focus window or an inferior.
the crossing mode (GDK_CROSSING_NORMAL, GDK_CROSSING_GRAB, GDK_CROSSING_UNGRAB, GDK_CROSSING_GTK_GRAB, GDK_CROSSING_GTK_UNGRAB or GDK_CROSSING_STATE_CHANGED). GDK_CROSSING_GTK_GRAB, GDK_CROSSING_GTK_UNGRAB, and GDK_CROSSING_STATE_CHANGED were added in 2.14 and are always synthesized, never native.
TRUE if the event was sent explicitly.
a bit-mask representing the state of the modifier keys (e.g. Control, Shift and Alt) and the pointer buttons. See GdkModifierType
the window that was entered or left.
the time of the event in milliseconds.
the type of the event (GDK_ENTER_NOTIFY or GDK_LEAVE_NOTIFY).
the window which received the event.
the x coordinate of the pointer relative to the window.
the x coordinate of the pointer relative to the root of the screen.
the y coordinate of the pointer relative to the window.
the y coordinate of the pointer relative to the root of the screen.