Md5 calculator with smart dialog

[Ape]

I want an application that has two text input areas and a command button. So the text areas are input and output. When you type a string in the input box and press the button, it shows the md5 hash of the input text in the output area.

The program should not be closed when used so I need to use smart dialogs, right? At this point I have only used vanilla dialogs..