XLIB FUNCTIONS XSelectInput(3x11)
NAME
XSelectInput - select input events
SYNTAXcc [ flag... ] file... -lX11 [ library... ]
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. Ini-
tially, 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 thedo_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: +o 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. +o Only one client at a time can select CirculateRequest,ConfigureRequest, or MapRequest events, which are asso-
ciated with the event mask SubstructureRedirectMask. +o Only one client at a time can select a ResizeRequestevent, which is associated with the event mask Resiz-
eRedirectMask. +o Only one client at a time can select a ButtonPressevent, which is associated with the event mask But-
tonPressMask. The server reports the event to all interested clients. X Version 11 Last change: libX11 1.3.5 1XLIB FUNCTIONS XSelectInput(3x11)
XSelectInput can generate a BadWindow error.
DIAGNOSTICS BadWindow A value for a Window argument does not name a defined Window.SEE ALSO
Xlib - C Language X Interface
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | x11/library/libx11 ||_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | See XInitThreads(3X11) |
|_____________________________|_____________________________|
X Version 11 Last change: libX11 1.3.5 2