XClientMessageEvent(3X11) MIT X11R4 XClientMessageEvent(3X11)
Name
XClientMessageEvent - ColormapNotify event structure
Structures
The structure for events contains:
typedef struct {
int type; /* ClientMessage */
unsigned long serial; /* # of last request processed by
server */
Bool send_event; /* true if came from a SendEvent
request */
Display *display; /* Display 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 event to a
client application, it sends an structure with the type member set to The display member is set to a pointer to the display the event was
read on. The send_event member is set to if the event came from a 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 win-
dow that is most useful to toolkit dispatchers.
The message_type member is set to an atom that indicates how the data should be interpreted 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 20 8-bit values, 10 16-bit values, and 5 32-bit values. Par-
ticular message types might not make use of all these values. The X server places no interpretation on the values in the message_type or
data members.
See Also
XAnyEvent(3X11), XButtonEvent(3X11), XCreateWindowEvent(3X11), XCirculateEvent(3X11), XCirculateRequestEvent(3X11), XColormapEvent(3X11),
XConfigureEvent(3X11), XConfigureRequestEvent(3X11), XCrossingEvent(3X11), XDestroyWindowEvent(3X11), XErrorEvent(3X11), XEx-
poseEvent(3X11), XFocusChangeEvent(3X11), XGraphicsExposeEvent(3X11), XGravityEvent(3X11), XKeymapEvent(3X11), XMapEvent(3X11), XMapRe-
questEvent(3X11), XPropertyEvent(3X11), XReparentEvent(3X11), XResizeRequestEvent(3X11), XSelectionClearEvent(3X11), XSelectionEvent(3X11),
XSelectionRequestEvent(3X11), XUnmapEvent(3X11), XVisibilityEvent(3X11)
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
XClientMessageEvent(3X11)
