Window positioning commands and current position function

To be able to save current window position and restore it easily it
would be desirable to have a function that returns window position in the
same format required by the /POS option of the commands which use that
option for window positioning. The values returned by the @WINPOS function
are not consistent with the /POS option. A new function, possibly named
@POS[title] do this. If @WINPOS returns the unparsed value of a single
Windows API function, it would be trivial to perform the arithmetic
operations required to translate those values to the format required by the
/POS options and report them as the values of @POS[].
It would shorten coding if @WINPOS and the new function would interpret
an empty parameter string as specifying the current window, similar to many
other functions.