NAME

       XGraphicsExposeEvent, XNoExposeEvent - GraphicsExpose and NoExpose event structures

STRUCTURES

       The structures for GraphicsExpose and NoExpose events contain:

       typedef struct {
               int type;       /* GraphicsExpose */
               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 */
               Drawable drawable;
               int x, y;
               int width, height;
               int count;      /* if nonzero, at least this many more */
               int major_code; /* core is CopyArea or CopyPlane */
               int minor_code; /* not defined in the core */
       } XGraphicsExposeEvent;

       typedef struct {
               int type;       /* NoExpose */
               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 */
               Drawable drawable;
               int major_code; /* core is CopyArea or CopyPlane */
               int minor_code; /* not defined in the core */
       } XNoExposeEvent;

       When you receive these events, their 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
       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.

       Both  structures have these common members: drawable, major_code, and minor_code.  The drawable member is
       set to the drawable of the destination region on which the graphics request was  to  be  performed.   The
       major_code  member is set to the graphics request initiated by the client and can be either X_CopyArea or
       X_CopyPlane.  If it is X_CopyArea, a call to XCopyArea initiated the request.  If it  is  X_CopyPlane,  a
       call  to  XCopyPlane initiated the request.  These constants are defined in X11/Xproto.h.  The minor_code
       member, like the major_code member, indicates  which  graphics  request  was  initiated  by  the  client.
       However,  the  minor_code  member  is not defined by the core X protocol and will be zero in these cases,
       although it may be used by an extension.

       The XGraphicsExposeEvent structure has these additional members: x, y, width, height, and count.   The  x
       and  y  members  are set to the coordinates relative to the drawable'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 GraphicsExpose events to follow.  If count is zero, no more
       GraphicsExpose events follow for this window.  However, if count is nonzero,  at  least  that  number  of
       GraphicsExpose events (and possibly more) are to follow for this window.

SEE ALSO

       XAnyEvent(3),   XButtonEvent(3),  XCreateWindowEvent(3),  XCirculateEvent(3),  XCirculateRequestEvent(3),
       XColormapEvent(3),  XConfigureEvent(3),   XConfigureRequestEvent(3),   XCopyArea(3),   XCrossingEvent(3),
       XDestroyWindowEvent(3),    XErrorEvent(3),   XExposeEvent(3),   XFocusChangeEvent(3),   XGravityEvent(3),
       XKeymapEvent(3),     XMapEvent(3),     XMapRequestEvent(3),     XPropertyEvent(3),     XReparentEvent(3),
       XResizeRequestEvent(3),     XSelectionClearEvent(3),    XSelectionEvent(3),    XSelectionRequestEvent(3),
       XUnmapEvent(3), XVisibilityEvent(3)
       Xlib - C Language X Interface