176 lines
3.6 KiB
Plaintext
176 lines
3.6 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.TH XSelectInput 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XSelectInput \- select input events
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.SH SYNTAX
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.\" $Header: XSelectInput.f,v 1.2 88/05/04 06:25:22 mento Exp $
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XSelectInput\^(\^\fIdisplay\fP, \fIw\fP\^, \fIevent_mask\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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long \fIevent_mask\fP\^;
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.SH ARGUMENTS
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.\" $Header: eventmask.a,v 1.2 88/05/14 13:04:06 mento Exp $
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.IP \fIevent_mask\fP 1i
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Specifies the event mask.
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.ds Wi whose events you are interested in
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.\" $Header: w_gen.a,v 1.4 88/08/04 11:21:56 mento Exp $
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.IP \fIw\fP 1i
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Specifies the window \*(Wi.
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.SH DESCRIPTION
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.\" $Header: XSelectInput.d,v 1.3 88/06/11 07:52:55 mento Exp $
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The
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.ZN XSelectInput
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function requests that the X server report the events associated with the
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specified event mask.
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Initially, X will not report any of these events.
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Events are reported relative to a window.
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If a window is not interested in a device event, it usually propagates to
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the closest ancestor that is interested,
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unless the do_not_propagate mask prohibits it.
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.IN "Event" "propagation"
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.LP
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Setting the event-mask attribute of a window overrides any previous call
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for the same window but not for other clients.
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Multiple clients can select for the same events on the same window
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with the following restrictions:
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.IP \(bu 5
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Multiple clients can select events on the same window because their event masks
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are disjoint.
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When the X server generates an event, it reports it
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to all interested clients.
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.IP \(bu 5
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Only one client at a time can select
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.ZN CirculateRequest ,
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.ZN ConfigureRequest ,
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or
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.ZN MapRequest
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events, which are associated with
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the event mask
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.ZN SubstructureRedirectMask .
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.IP \(bu 5
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Only one client at a time can select
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a
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.ZN ResizeRequest
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event, which is associated with
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the event mask
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.ZN ResizeRedirectMask .
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.IP \(bu 5
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Only one client at a time can select a
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.ZN ButtonPress
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event, which is associated with
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the event mask
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.ZN ButtonPressMask .
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.LP
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The server reports the event to all interested clients.
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.LP
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.ZN XSelectInput
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can generate a
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.ZN BadWindow
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error.
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.SH DIAGNOSTICS
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.\" $Header: badwindow.e,v 1.1 87/09/04 08:23:20 mento Exp $
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.TP 1i
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.ZN BadWindow
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A value for a Window argument does not name a defined Window.
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.SH "SEE ALSO"
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\fI\*(xL\fP
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