>>UPDATE 2: This "main" form is used in another application as Modal form. And the property ShowWindow in that other application is 0 (not 2).
Is it possible to change these properties in code when creating the object of the form when it has to be Modeless and 2 - As Top Level Form?
Some of VFP's form display properties can't be changed after form creation commences, so you'd need to subclass if you can't edit the "main" form directly. This is a nuisance if it's a scx rather than a class in a vcx or prg, but I don't know any other way if you need more than one version of these settings, even borderstyle.
HTH. Also, experiment with desktop= setting that can make the parent form look like a native form for your OS.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1
