Purpose: describe what a paned window is, and where to find some implementations
of one.

A paned window is two windows with a bar down the middle, where the bar
has a handle for resizing the two windows.
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Tcl/Tk 8.4 has a panedwindow, and a [spinbox] as well as a [labelframe].  The panedwindow was the result of TIP 41 [http://purl.org/tcl/tip/41.html] which proposed a built-in PanedWindow.

[BWidgets] [http://tcllib.sourceforge.net/] has a PanedWindow.

[ClassyTk] [http://rrna.uia.ac.be/classytcl/] has a Paned widget.

[obTcl] [ftp://ftp.dynas.se/pub/tcl/obTcl.tar.gz] has a paged window widget.

[Jeffrey Hobbs]' widget package [ftp://ftp.scriptics.com/pub/tcl/nightly-cvs/widget/]
includes a pure-Tcl geometry-manager-like-thing that serves as a paned window.

[Iwidgets] [https://sourceforge.net/projects/incrtcl/] (based on itk) includes a panedwindow.

[Tix] [http://tix.sourceforge.net/] has a paned window.

























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[[Does [Perl/Tk] have a Pane widget?]]