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><TD CLASS="section4"
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> Instances</TD
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><TD CLASS="decl"
><A HREF="Qtc-Gui-QUndoStack.html#t%3AQsetActive"
>QsetActive</A
> Bool</TD
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><TD CLASS="decl"
><A HREF="Qtc-Gui-QUndoStack.html#t%3AQsetActive"
>QsetActive</A
> ()</TD
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