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+'\"
+'\" Copyright (c) 1992 The Regents of the University of California.
+'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\" 
+'\" SCCS: @(#) tkwait.n 1.13 96/07/31 08:19:23
+'\" 
+.so man.macros
+.TH tkwait n "" Tk "Tk Built-In Commands"
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+tkwait \- Wait for variable to change or window to be destroyed
+.SH SYNOPSIS
+\fBtkwait variable \fIname\fR
+.sp
+\fBtkwait visibility \fIname\fR
+.sp
+\fBtkwait window \fIname\fR
+.BE
+
+.SH DESCRIPTION
+.PP
+The \fBtkwait\fR command waits for one of several things to happen,
+then it returns without taking any other actions.
+The return value is always an empty string.
+If the first argument is \fBvariable\fR (or any abbreviation of
+it) then the second argument is the name of a global variable and the
+command waits for that variable to be modified.
+If the first argument is \fBvisibility\fR (or any abbreviation
+of it) then the second argument is the name of a window and the
+\fBtkwait\fR command waits for a change in its
+visibility state (as indicated by the arrival of a VisibilityNotify
+event).  This form is typically used to wait for a newly-created
+window to appear on the screen before taking some action.
+If the first argument is \fBwindow\fR (or any abbreviation
+of it) then the second argument is the name of a window and the
+\fBtkwait\fR command waits for that window to be destroyed.
+This form is typically used to wait for a user to finish interacting
+with a dialog box before using the result of that interaction.
+.PP
+While the \fBtkwait\fR command is waiting it processes events in
+the normal fashion, so the application will continue to respond
+to user interactions.
+If an event handler invokes \fBtkwait\fR again, the nested call
+to \fBtkwait\fR must complete before the outer call can complete.
+
+.SH KEYWORDS
+variable, visibility, wait, window