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XVisibilityEvent(3)		XLIB FUNCTIONS		   XVisibilityEvent(3)

NAME
       XVisibilityEvent	- VisibilityNotify event structure

STRUCTURES
       The structure for VisibilityNotify 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
       identifies it.  For example, when the X server reports a	GraphicsExpose
       event  to a client application, it sends	an XGraphicsExposeEvent	struc-
       ture with the type member set to	GraphicsExpose.	 The display member is
       set  to a pointer to the	display	the event was read on.	The send_event
       member is set to	True if	the event came from a SendEvent	 protocol  re-
       quest.  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 use-
       ful 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 VisibilityUnobscured,	VisibilityPartiallyObscured, or	VisibilityFul-
       lyObscured.  The	X server ignores all of	a window's subwindows when de-
       termining the visibility	state of the window  and  processes  Visibili-
       tyNotify	events according to the	following:

       o    When  the  window changes state from partially obscured, fully ob-
	    scured, or not viewable to viewable	and completely unobscured, the
	    X  server  generates the event with	the state member of the	XVisi-
	    bilityEvent	structure set to VisibilityUnobscured.

       o    When the window changes state from viewable	and  completely	 unob-
	    scured  or	not viewable to	viewable and partially obscured, the X
	    server generates the event with the	state member of	the XVisibili-
	    tyEvent structure set to VisibilityPartiallyObscured.

       o    When  the  window changes state from viewable and completely unob-
	    scured, viewable and partially obscured, or	not viewable to	 view-
	    able and fully obscured, the X server generates the	event with the
	    state member of the	XVisibilityEvent structure set to  Visibility-
	    FullyObscured.

SEE ALSO
       XAnyEvent(3),	XButtonEvent(3),    XCreateWindowEvent(3),   XCircula-
       teEvent(3),  XCirculateRequestEvent(3),	 XColormapEvent(3),   XConfig-
       ureEvent(3), XConfigureRequestEvent(3), XCrossingEvent(3), XDestroyWin-
       dowEvent(3),  XErrorEvent(3),  XExposeEvent(3),	 XFocusChangeEvent(3),
       XGraphicsExposeEvent(3),	      XGravityEvent(3),	      XKeymapEvent(3),
       XMapEvent(3),	XMapRequestEvent(3),	XPropertyEvent(3),     XRepar-
       entEvent(3),  XResizeRequestEvent(3),  XSelectionClearEvent(3), XSelec-
       tionEvent(3), XSelectionRequestEvent(3),	XUnmapEvent(3),
       Xlib - C	Language X Interface

X Version 11			 libX11	1.6.12		   XVisibilityEvent(3)

NAME | STRUCTURES | SEE ALSO

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