Thank you LanX for your answer. I agree that ->Eval is to be used for exceptional cases where pTk->methods are not available. The case presented above is (should be) such a cases, since there are no Perl or pTk methods to manipulate the macOS menu. Such methods are instead available in the Tcl/Tk.

In reply to Re^3: call a sub from Tcl code in Tcl::pTk by Anonymous Monk
in thread call a sub from Tcl code in Tcl::pTk by Anonymous Monk

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