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XExposeEvent(3)                                XLIB FUNCTIONS                                XExposeEvent(3)



NAME
       XExposeEvent - Expose event structure

STRUCTURES
       The structure for Expose events contains:

       typedef struct {
            int type;                /* Expose */
            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 x, y;
            int width, height;
            int count;               /* if nonzero, at least this many more */
       } XExposeEvent;

       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 XGraphicsEx-poseEvent XGraphicsExposeEvent
       poseEvent 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 mem-ber member
       ber is set to the window that is most useful to toolkit dispatchers.

       The window member is set to the exposed (damaged) window.  The x and y members are set to the coordi-nates coordinates
       nates relative to the window's origin and indicate the upper-left corner of the rectangle.  The width
       and height members are set to the size (extent) of the rectangle.  The count member is set to the
       number of Expose events that are to follow.  If count is zero, no more Expose events follow for this
       window.  However, if count is nonzero, at least that number of Expose events (and possibly more) fol-low follow
       low for this window.  Simple applications that do not want to optimize redisplay by distinguishing
       between subareas of its window can just ignore all Expose events with nonzero counts and perform full
       redisplays on events with zero counts.

SEE ALSO
       XAnyEvent(3X11), XButtonEvent(3X11), XCreateWindowEvent(3X11), XCirculateEvent(3X11), XCircu-lateRequestEvent(3X11), XCirculateRequestEvent(3X11),
       lateRequestEvent(3X11), XColormapEvent(3X11), XConfigureEvent(3X11), XConfigureRequestEvent(3X11),
       XCrossingEvent(3X11), XDestroyWindowEvent(3X11), XErrorEvent(3X11), XFocusChangeEvent(3X11), XGraph-icsExposeEvent(3X11), XGraphicsExposeEvent(3X11),
       icsExposeEvent(3X11), XGravityEvent(3X11), XKeymapEvent(3X11), XMapEvent(3X11), XMapRe-questEvent(3X11), XMapRequestEvent(3X11),
       questEvent(3X11), XPropertyEvent(3X11), XReparentEvent(3X11), XResizeRequestEvent(3X11), XSelection-ClearEvent(3X11), XSelectionClearEvent(3X11),
       ClearEvent(3X11), XSelectionEvent(3X11), XSelectionRequestEvent(3X11), XUnmapEvent(3X11), XVisibili-tyEvent(3X11) XVisibilityEvent(3X11)
       tyEvent(3X11)
       Xlib - C Language X Interface



X Version 11                                    libX11 1.2.1                                 XExposeEvent(3)