Parameter passing to function with void * as Argument Post: 302902834

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LEARN ABOUT CENTOS

xclientmessageevent

XClientMessageEvent(3)						  XLIB FUNCTIONS					    XClientMessageEvent(3)

NAME

       XClientMessageEvent - ClientMessage event structure

STRUCTURES

       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 GraphicsEx-
       pose 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 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 twenty 8-bit values, ten 16-bit values, and five 32-bit val-
       ues.  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.

SEE ALSO

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

X Version 11							   libX11 1.6.0 					    XClientMessageEvent(3)