|
|
typedef struct { int type; /* FocusIn or FocusOut */ 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; /* window of event */ int mode; /* NotifyNormal, NotifyGrab, NotifyUngrab */ int detail; /* NotifyAncestor, NotifyVirtual, NotifyInferior, * NotifyNonlinear,NotifyNonlinearVirtual, * NotifyPointer, NotifyPointerRoot, * NotifyDetailNone */ } XFocusChangeEvent; typedef XFocusChangeEvent XFocusInEvent; typedef XFocusChangeEvent XFocusOutEvent;When you receive these events, 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 window
member is set to the window on which the
FocusIn or FocusOut event was generated.
This is the window used by the X server to report the event.
The mode
member is set to indicate whether the
focus events are normal focus events, focus events while grabbed,
focus events when a grab activates,
or focus events when a grab deactivates.
The X server can set the mode
member to
NotifyNormal, NotifyWhileGrabbed,
NotifyGrab, or NotifyUngrab.
All FocusOut events caused by a window unmap are generated after any UnmapNotify event; however, the X protocol does not constrain the ordering of FocusOut events with respect to generated EnterNotify, LeaveNotify, VisibilityNotify, and Expose events.
Depending on the event mode, the detail
member
is set to indicate the notify detail and can be NotifyAncestor,
NotifyVirtual, NotifyInferior,
NotifyNonlinear, NotifyNonlinearVirtual,
NotifyPointer, NotifyPointerRoot,
or NotifyDetailNone.