progress bar in forms 4.5???

[Quoted]        I have a form do some internal calculation and this take time ,I need to implement a progress bar during the calculation so the user can not exit form until the process is finished .

[Quoted] any help on how to do it ????

Thanks

[Quoted]    -**** Posted from Supernews, Discussions Start Here(tm) ****- http://www.supernews.com/ - Host to the World's Discussions & Usenet Received on Wed Aug 26 1998 - 19:09:20 CEST