Setting tk_strictMotif to 1 causes Tk to, in some cases,
produce a user interface more like the X Window System environment
known as Motif and less like Tk.

[Tk]'s xmfbox.tcl implements the file chooser dialog that is used when
tk_strictMotif is set to 1.

[Tk]'s text.tcl implements mouse-wheel scrolling only if tk_strictMotif is false.
-- [Ro]

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