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typedef struct {
int type; /* GravityNotify */
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 event;
Window window;
int x, y;
} XGravityEvent;
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 event member is set either to the
window that was moved or to its parent,
depending on whether StructureNotify or
SubstructureNotify was selected.
The window member is set to the child window that was moved.
The x and y members are set to the coordinates
relative to the new parent window's origin and indicate the
position of the upper-left outside corner of the window.