Populate() is one of the underlying routines used when building composite widgets (such as a FileSelect). It will be found by perusing the source of the Tk::FileSelect.pm file. The part you'll be interested in inside of that routine is the call to $w->ConfigSpecs where the options for configure are defined for the composite widget.

In reply to Re: Tk::FileSelect configure options? by danger
in thread Tk::FileSelect configure options? by rbc

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