>I'm passing a parameter to a form.
>How can I modify and return my parameter to my calling form without declaring a public variable.

In short, you can't - the scoping of the parameter is to the Init event where it is absorbed, so it goes out of scope when the Init event terminates. You'd have to save the value to a form property, and then return it modally on formtermination, and use the TO clause of DO FORM.

A more practical solution would be to pass a parameter object. No it's an object; you save the object ref to a form property. You manipulate the form property within the form, but since it's only a reference, the member properties of the original object passed are actually altered at all times, and the resulting value of the content of the parameter object on termination of the form is the net effect of changes made to properties of the form member property reference.

BTW, the object ref is passed by value, not by reference, so you don't have to rely on the UDFPARM behavior associated with DO, and can pass the reference to a Form created by CREATEOBJ()/NEWOBJECT().

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