Code should work for hidden form the same way as for visible form. How do you call Thisform.release(), Thisform.Destroy()?

>Hi Everybody,
>
>I can not release a hidden form. I used
>

Thisform.release(), Thisform.Destroy()

>Inside that form. However, they don’t work.
>How can I do that?
>
>Thank you,
>Ali