XSelectInput(3X11)                             XSelectInput(3X11)



NAME
     XSelectInput - select input events

SYNTAX
     XSelectInput(display, w, event_mask)
           Display *display;
           Window w;
           long event_mask;

ARGUMENTS
     display   Specifies the connection to the XWIN server.

     event_mask
               Specifies the event mask.

     w         Specifies the window whose events you are
               interested in.

DESCRIPTION
     The XSelectInput function requests that the XWIN 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 XWIN
          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 asso-
          ciated with the event mask SubstructureRedirectMask.

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

     ⊕    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.





XWIN 3.0               Last change: 9/1/88                 .ie t

XSelectInput(3X11)                             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















































XWIN 3.0               Last change: 9/1/88                 .ie t

XSelectInput(3X11)                             XSelectInput(3X11)























































XWIN 3.0               Last change: 9/1/88                 .ie t