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X11R7.4 - man page for xclientmessageevent (x11r4 section 3)

XClientMessageEvent(3)			  XLIB FUNCTIONS		   XClientMessageEvent(3)

       XClientMessageEvent - ClientMessage event structure

       The structure for ClientMessage events contains:

       typedef struct {
	    int type;		     /* ClientMessage */
	    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;
	    Atom message_type;
	    int format;
	    union {
		 char b[20];
		 short s[10];
		 long l[5];
		    } data;
       } XClientMessageEvent;

       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 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.

       The message_type member is set to an atom that indicates how the data should be inter-
       preted by the receiving client.	The format member is set to 8, 16, or 32 and specifies
       whether the data should be viewed as a list of bytes, shorts, or longs.	The data member
       is a union that contains the members b, s, and l.  The b, s, and l members represent data
       of twenty 8-bit values, ten 16-bit values, and five 32-bit values.  Particular message
       types might not make use of all these values.  The X server places no interpretation on
       the values in the window, message_type, or data members.

       XAnyEvent(3X11), XButtonEvent(3X11), XCreateWindowEvent(3X11), XCirculateEvent(3X11),
       XCirculateRequestEvent(3X11), XColormapEvent(3X11), XConfigureEvent(3X11), XConfigur-
       eRequestEvent(3X11), XCrossingEvent(3X11), XDestroyWindowEvent(3X11), XErrorEvent(3X11),
       XExposeEvent(3X11), XFocusChangeEvent(3X11), XGraphicsExposeEvent(3X11), XGravi-
       tyEvent(3X11), XKeymapEvent(3X11), XMapEvent(3X11), XMapRequestEvent(3X11), XProper-
       tyEvent(3X11), XReparentEvent(3X11), XResizeRequestEvent(3X11), XSelection-
       ClearEvent(3X11), XSelectionEvent(3X11), XSelectionRequestEvent(3X11), XUnmapEvent(3X11),
       Xlib - C Language X Interface

X Version 11				   libX11 1.2.1 		   XClientMessageEvent(3)

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