


XVisibilityEvent(3X11)				       XVisibilityEvent(3X11)
X11R5									X11R5



NAME
  XVisibilityEvent, XVisibilityNotifyEvent - VisibilityNotify event structure

STRUCTURES
  The structure	for _V_i_s_i_b_i_l_i_t_y_N_o_t_i_f_y events contains:

  typedef struct {
	  int type;	  /* VisibilityNotify */
	  unsigned long	serial;	  /* # of last request processed by server */
	  Bool send_event;	  /* true if this came from a SendEvent	request	*/
	  Display *display;	  /* Display the event was read	from */
	  Window window;
	  int state;
  } XVisibilityEvent;

  When you receive this	event, the structure members are set as	follows.

  The type member is set to the	event type constant name that uniquely iden-
  tifies it.  For example, when	the X server reports a _G_r_a_p_h_i_c_s_E_x_p_o_s_e event
  to a client application, it sends an _X_G_r_a_p_h_i_c_s_E_x_p_o_s_e_E_v_e_n_t structure with
  the type member set to _G_r_a_p_h_i_c_s_E_x_p_o_s_e.  The display member is	set to a
  pointer to the display the event was read on.	 The send_event	member is set
  to _T_r_u_e if the event came from a _S_e_n_d_E_v_e_n_t protocol request.	The serial
  member is set	from the serial	number reported	in the protocol	but expanded
  from the 16-bit least-significant bits to a full 32-bit value.  The window
  member is set	to the window that is most useful to toolkit dispatchers.

  The window member is set to the window whose visibility state	changes.  The
  state	member is set to the state of the window's visibility and can be
  _V_i_s_i_b_i_l_i_t_y_U_n_o_b_s_c_u_r_e_d,	_V_i_s_i_b_i_l_i_t_y_P_a_r_t_i_a_l_l_y_O_b_s_c_u_r_e_d, or	_V_i_s_i_b_i_l_i_t_y_F_u_l_l_y_O_b_-
  _s_c_u_r_e_d.  The X server	ignores	all of a window's subwindows when determining
  the visibility state of the window and processes _V_i_s_i_b_i_l_i_t_y_N_o_t_i_f_y events
  according to the following:

  oo++    When the	window changes state from partially obscured, fully obscured,
       or not viewable to viewable and completely unobscured, the X server
       generates the event with	the state member of the	_X_V_i_s_i_b_i_l_i_t_y_E_v_e_n_t
       structure set to	_V_i_s_i_b_i_l_i_t_y_U_n_o_b_s_c_u_r_e_d.

  oo++    When the	window changes state from viewable and completely unobscured
       or not viewable to viewable and partially obscured, the X server	gen-
       erates the event	with the state member of the _X_V_i_s_i_b_i_l_i_t_y_E_v_e_n_t struc-
       ture set	to _V_i_s_i_b_i_l_i_t_y_P_a_r_t_i_a_l_l_y_O_b_s_c_u_r_e_d.

  oo++    When the	window changes state from viewable and completely unobscured,
       viewable	and partially obscured,	or not viewable	to viewable and	fully
       obscured, the X server generates	the event with the state member	of
       the _X_V_i_s_i_b_i_l_i_t_y_E_v_e_n_t structure set to _V_i_s_i_b_i_l_i_t_y_F_u_l_l_y_O_b_s_c_u_r_e_d.




SEE ALSO
  XAnyEvent(3X11), XButtonEvent(3X11), XCreateWindowEvent(3X11),
  XCirculateEvent(3X11), XCirculateRequestEvent(3X11), XColormapEvent(3X11),
  XConfigureEvent(3X11), XConfigureRequestEvent(3X11), XCrossingEvent(3X11),
  XDestroyWindowEvent(3X11), XErrorEvent(3X11),	XExposeEvent(3X11),
  XFocusChangeEvent(3X11), XGraphicsExposeEvent(3X11), XGravityEvent(3X11),
  XKeymapEvent(3X11), XMapEvent(3X11), XMapRequestEvent(3X11),
  XPropertyEvent(3X11),	XReparentEvent(3X11), XResizeRequestEvent(3X11),
  XSelectionClearEvent(3X11), XSelectionEvent(3X11),
  XSelectionRequestEvent(3X11),	XUnmapEvent(3X11),
  _X_l_i_b - _C _L_a_n_g_u_a_g_e _X _I_n_t_e_r_f_a_c_e





























































