Name
MapNotify,UnmapNotify — xmap, xunmap
When Generated
The X server generates MapNotify
and
UnmapNotify
events when a window changes state
from unmapped to mapped or vice versa.
Select With
To receive these events on a single window, use
StructureNotifyMask
in the call to
XSelectInput
for the window. To receive these
events for all children of a particular parent, specify the parent
window ID and use SubstructureNotifyMask
.
XEvent Structure Name
typedef union _XEvent { ... XMapEvent xmap; XUnmapEvent xunmap; ... } XEvent;
Event Structure
typedef struct { int type; unsigned long serial; /* # of last request processed by server */ Bool send_event; /* True if this came from SendEvent request */ Display *display; /* Display the event was read from */ Window event; Window window; Bool override_redirect; /* boolean, is override set */ } XMapEvent; typedef struct { int type; unsigned long serial; /* # of last request processed by server */ Bool send_event; /* True if this came from SendEvent request */ Display *display; /* Display the event was read from */ Window event; Window window; Bool from_configure; } XUnmapEvent;
Event Structure Members
event
The window that selected this event.
window
The window that was just mapped or unmapped.
override_redirect
(XMapEvent
only)True
orFalse
. The value of theoverride_redirect
attribute of the window that was just mapped.from_configure
(XUnmapEvent
only)True
if the event was generated as a result of a resizing of the window’s parent when the window itself ...
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