Place form in Viewport

Hello,

For a long time now i trying to find answer to a problem,

TASK : Place a Maxform (dotnet maxform) at the bottom of the active viewport.

PROBLEM : i am not finding a way to get and convert the X Y of viewport to the screen space.

Can anyone please help me out with this.

Here is a link to what i want to achieve

http://www.paulneale.com/tutorials/dotNet/form/index.htm#settingProperties