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% File src/library/tcltk/man/tkStartGUI.Rd
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2007 R Core Team
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% Distributed under GPL 2 or later
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\name{tkStartGUI}
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\alias{tkStartGUI}
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\title{Tcl/Tk GUI startup}
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\description{
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  Starts up the Tcl/Tk GUI
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}
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\usage{
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tkStartGUI()
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}
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\details{
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  Starts a GUI console implemented via a Tk text widget. This should
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  probably be called at most once per session. Also redefines the file
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  pager (as used by \code{help()}) to be the Tk pager.
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}
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\author{Peter Dalgaard}
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\note{
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#ifdef windows
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  This function is not usable under Windows.
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#endif
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  \code{tkStartGUI()} saves its evaluation environment as
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  \code{.GUIenv}. This means that the user interface elements can be
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  accessed in order to extend the interface. The three main objects are
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  named \code{Term}, \code{Menu}, and \code{Toolbar}, and the various
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  submenus and callback functions can be seen with
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  \code{ls(envir = .GUIenv)}.
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}
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\keyword{misc}