Form with size adjustable automatically

Hi,

Create a form to display some text. The text content may more or less. Make the form size adjust automatically based on the amount of text content. The maximum size of the form should be limited by the screen size. If too more text to be displayed on the form with maximum form size, show scroll bar. Please help on this.

It's like the form displayed with hiDisplayAppDBox(). But the dialog Box size can't be limited by the screen size when large amount of text displayed and no scroll bar.

Thanks!