Интерактивная система просмотра системных руководств (man-ов)
XSelectInput (3)
>> XSelectInput (3) ( Разные man: Библиотечные вызовы )
NAME
XSelectInput - select input events
SYNTAX
int XSelectInput(Display *display, Window w, long
event_mask);
ARGUMENTS
display
Specifies the connection to the X server.
event_mask
Specifies the event mask.
w
Specifies the window whose events you are interested in.
DESCRIPTION
The
XSelectInput
function requests that the X server report the events associated with the
specified event mask.
Initially, X will not report any of these events.
Events are reported relative to a window.
If a window is not interested in a device event, it usually propagates to
the closest ancestor that is interested,
unless the do_not_propagate mask prohibits it.
Setting the event-mask attribute of a window overrides any previous call
for the same window but not for other clients.
Multiple clients can select for the same events on the same window
with the following restrictions:
*
Multiple clients can select events on the same window because their event masks
are disjoint.
When the X server generates an event, it reports it
to all interested clients.
*
Only one client at a time can select
CirculateRequest,
ConfigureRequest,
or
MapRequest
events, which are associated with
the event mask
SubstructureRedirectMask.
*
Only one client at a time can select
a
ResizeRequest
event, which is associated with
the event mask
ResizeRedirectMask.
*
Only one client at a time can select a
ButtonPress
event, which is associated with
the event mask
ButtonPressMask.
The server reports the event to all interested clients.
XSelectInput
can generate a
BadWindow
error.
DIAGNOSTICS
BadWindow
A value for a Window argument does not name a defined Window.
