XGraphicsExposeEvent(3X11)  X Version 11(Release 5)  XGraphicsExposeEvent(3X11)


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,


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XGraphicsExposeEvent(3X11)  X Version 11(Release 5)  XGraphicsExposeEvent(3X11)


      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(3X11), XButtonEvent(3X11), XCreateWindowEvent(3X11),
      XCirculateEvent(3X11), XCirculateRequestEvent(3X11),
      XColormapEvent(3X11), XConfigureEvent(3X11),
      XConfigureRequestEvent(3X11), XCopyArea(3X11), XCrossingEvent(3X11),
      XDestroyWindowEvent(3X11), XErrorEvent(3X11), XExposeEvent(3X11),
      XFocusChangeEvent(3X11), XGravityEvent(3X11), XKeymapEvent(3X11),
      XMapEvent(3X11), XMapRequestEvent(3X11), XPropertyEvent(3X11),
      XReparentEvent(3X11), XResizeRequestEvent(3X11),
      XSelectionClearEvent(3X11), XSelectionEvent(3X11),
      XSelectionRequestEvent(3X11), XUnmapEvent(3X11), XVisibilityEvent(3X11)
      Xlib - C Language X Interface




























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