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 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
       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 structures 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;
            XSelectionClearEvent xselectionclear;
            XSelectionRequestEvent xselectionrequest;
            XSelectionEvent xselection;

       events, the fifth member always is a window, which has been carefully
       selected to be useful to toolkit dispatchers.  To avoid breaking tool-
       kits, 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), XCirculateEvent(3X11),
       XCirculateRequestEvent(3X11), XColormapEvent(3X11), XConfig-
       ureEvent(3X11), XConfigureRequestEvent(3X11), XCrossingEvent(3X11),
       XDestroyWindowEvent(3X11), XErrorEvent(3X11), XExposeEvent(3X11), XFo-
       cusChangeEvent(3X11), XGraphicsExposeEvent(3X11), XGravityEvent(3X11),
       XKeymapEvent(3X11), XMapEvent(3X11), XMapRequestEvent(3X11), XProper-
       tyEvent(3X11), XReparentEvent(3X11), XResizeRequestEvent(3X11), XSelec-
       tionClearEvent(3X11), XSelectionEvent(3X11), XSelectionRe-
       questEvent(3X11), XUnmapEvent(3X11), XVisibilityEvent(3X11)
       Xlib - C Language X Interface



X Version 11                      Release 6.6                  XAnyEvent(3X11)