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XGraphicsExposeEvent(3X11)
X11R6
NAME
  XGraphicsExposeEvent, XNoExposeEvent - GraphicsExpose and NoExpose event
  structures

DESCRIPTION
  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(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

Index for Section 3X11

Alphabetical listing for X

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