XSelectInput(X3xlib) X Version 11 (Release 6.1)


XSelectInput -- select input events

Synopsis

   XSelectInput(display, w, event_mask) 
         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:

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.

References

Xlib - C Language X Interface


30 January 1998
© 1998 The Santa Cruz Operation, Inc. All rights reserved.