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 on unix/linux only if tk_strictMotif is false. -- Ro

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