XAnyEvent man page on BSDi

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XAnyEvent(3X11)		XLIB FUNCTIONS	  XAnyEvent(3X11)

NAME
       XAnyEvent, XEvent - generic X event structures

STRUCTURES
       All the event structures declared in <X11/Xlib.h> have the
       following common members:
       typedef struct {
	    int type;
	    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;
       } XAnyEvent;

       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 applica-
       tion, it sends an XGraphicsExposeEvent structure 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 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 XEvent structure is a union of the individual struc-
       tures declared for each event type:
       typedef union _XEvent {
	    int type;		/* must not be changed */
	    XAnyEvent xany;
	    XKeyEvent xkey;
	    XButtonEvent xbutton;
	    XMotionEvent xmotion;
	    XCrossingEvent xcrossing;
	    XFocusChangeEvent xfocus;
	    XExposeEvent xexpose;
	    XGraphicsExposeEvent xgraphicsexpose;
	    XNoExposeEvent xnoexpose;
	    XVisibilityEvent xvisibility;
	    XCreateWindowEvent xcreatewindow;
	    XDestroyWindowEvent xdestroywindow;
	    XUnmapEvent xunmap;
	    XMapEvent xmap;
	    XMapRequestEvent xmaprequest;
	    XReparentEvent xreparent;
	    XConfigureEvent xconfigure;
	    XGravityEvent xgravity;
	    XResizeRequestEvent xresizerequest;
	    XConfigureRequestEvent xconfigurerequest;
	    XCirculateEvent xcirculate;
	    XCirculateRequestEvent xcirculaterequest;
	    XPropertyEvent xproperty;

X Version 11		Release 6.4				1

XAnyEvent(3X11)		XLIB FUNCTIONS	  XAnyEvent(3X11)

	    XSelectionClearEvent xselectionclear;
	    XSelectionRequestEvent xselectionrequest;
	    XSelectionEvent xselection;
	    XColormapEvent xcolormap;
	    XClientMessageEvent xclient;
	    XMappingEvent xmapping;
	    XErrorEvent xerror;
	    XKeymapEvent xkeymap;
	    long pad[24];
       } XEvent;

       An XEvent structure's first entry always is the type mem-
       ber, which is set to the event type.  The second member
       always is the serial number of the protocol request that
       generated the event.  The third member always is
       send_event, which is a Bool that indicates if the event
       was sent by a different client.	The fourth member always
       is a display, which is the display that the event was read
       from.  Except for keymap events, the fifth member always
       is a window, which has been carefully selected to be use-
       ful to toolkit dispatchers.  To avoid breaking toolkits,
       the order of these first five entries is not to change.
       Most events also contain a time member, which is the time
       at which an event occurred.  In addition, a pointer to the
       generic event must be cast before it is used to access any
       other information in the structure.

SEE ALSO
       XButtonEvent(3X11), XCreateWindowEvent(3X11), XCircula-
       teEvent(3X11), XCirculateRequestEvent(3X11), XCol-
       ormapEvent(3X11), XConfigureEvent(3X11), XConfigur-
       eRequestEvent(3X11), XCrossingEvent(3X11), XDestroyWindow-
       Event(3X11), XErrorEvent(3X11), XExposeEvent(3X11), XFo-
       cusChangeEvent(3X11), XGraphicsExposeEvent(3X11), XGravi-
       tyEvent(3X11), XKeymapEvent(3X11), XMapEvent(3X11),
       XMapRequestEvent(3X11), XPropertyEvent(3X11), XRepar-
       entEvent(3X11), XResizeRequestEvent(3X11), XSelection-
       ClearEvent(3X11), XSelectionEvent(3X11), XSelectionRe-
       questEvent(3X11), XUnmapEvent(3X11), XVisibili-
       tyEvent(3X11)
       Xlib - C Language X Interface

X Version 11		Release 6.4				2

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