1XClientMessageEvent(3)          XLIB FUNCTIONS          XClientMessageEvent(3)
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NAME

6       XClientMessageEvent - ClientMessage event structure
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STRUCTURES

9       The structure for ClientMessage events contains:
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11       typedef struct {
12               int type;       /* ClientMessage */
13               unsigned long serial;           /* # of last request processed by server */
14               Bool send_event;                /* true if this came from a SendEvent request */
15               Display *display;               /* Display the event was read from */
16               Window window;
17               Atom message_type;
18               int format;
19               union {
20                       char b[20];
21                       short s[10];
22                       long l[5];
23                       } data;
24       } XClientMessageEvent;
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26       When you receive this event, the structure members are set as follows.
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28       The  type  member  is set to the event type constant name that uniquely
29       identifies it.  For example, when the X server reports a GraphicsExpose
30       event  to a client application, it sends an XGraphicsExposeEvent struc‐
31       ture with the type member set to GraphicsExpose.  The display member is
32       set  to a pointer to the display the event was read on.  The send_event
33       member is set to True if the event came from a SendEvent  protocol  re‐
34       quest.  The serial member is set from the serial number reported in the
35       protocol but expanded from the 16-bit least-significant bits to a  full
36       32-bit value.  The window member is set to the window that is most use‐
37       ful to toolkit dispatchers.
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39       The message_type member is set to an atom that indicates how  the  data
40       should  be  interpreted  by the receiving client.  The format member is
41       set to 8, 16, or 32 and specifies whether the data should be viewed  as
42       a  list  of  bytes,  shorts, or longs.  The data member is a union that
43       contains the members b, s, and l.  The b, s, and  l  members  represent
44       data of twenty 8-bit values, ten 16-bit values, and five 32-bit values.
45       Particular message types might not make use of all these values.  The X
46       server  places  no  interpretation  on  the  values in the window, mes‐
47       sage_type, or data members.
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SEE ALSO

50       XAnyEvent(3),   XButtonEvent(3),    XCreateWindowEvent(3),    XCircula‐
51       teEvent(3),   XCirculateRequestEvent(3),   XColormapEvent(3),  XConfig‐
52       ureEvent(3), XConfigureRequestEvent(3), XCrossingEvent(3), XDestroyWin‐
53       dowEvent(3),   XErrorEvent(3),  XExposeEvent(3),  XFocusChangeEvent(3),
54       XGraphicsExposeEvent(3),       XGravityEvent(3),       XKeymapEvent(3),
55       XMapEvent(3),     XMapRequestEvent(3),    XPropertyEvent(3),    XRepar‐
56       entEvent(3), XResizeRequestEvent(3),  XSelectionClearEvent(3),  XSelec‐
57       tionEvent(3),   XSelectionRequestEvent(3),  XUnmapEvent(3),  XVisibili‐
58       tyEvent(3)
59       Xlib - C Language X Interface
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63X Version 11                    libX11 1.7.3.1          XClientMessageEvent(3)
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