How to create an iostream window or standard i/o window in VB

I'm developing a front end to a 3270 emulator. I am able to retrieve nformation from the Host I just need to be able to display the formatted screen in my application, where I can restrict where the user is allowed to type (something similar to the 3270 screen), and be able to tab from field to field. I've been using a Textbox to present the screen to the user, but it doesn't prevent the user form erasing or typing over protected fields. There are thousand of screens in this app so it is impossible to create preformatted forms with Textboxes so I'm using a formatted console input and output to interact with the user, but when receiving input from the console the user cannot access my forms's menus. Is there any other way I can be accomplish this task? Can I create a window which acts like a console in Visual Basic, some type of standard input/output or iostream window?