XSelectInput(3)           XLIB FUNCTIONS          XSelectInput(3)



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 inter-
                 ested 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:

       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 Circu-
            lateRequest, ConfigureRequest, or MapRequest events,
            which are associated with the event mask Substructur-
            eRedirectMask.

       o    Only one client at a time can select a ResizeRequest
            event, which is associated with the event mask Resiz-
            eRedirectMask.

       o    Only one client at a time can select a ButtonPress
            event, which is associated with the event mask But-
            tonPressMask.

       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.

SEE ALSO
       Xlib - C Language X Interface



X Version 11               libX11 1.1.5           XSelectInput(3)