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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	1.6.5		   XVisibilityEvent(3)

NAME | STRUCTURES | SEE ALSO

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