>ok, where should I specify the domain name, and what should i name the textbox in my program... where I am going to look and at the same time display the information?
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If you look into code you will see that program uses domain of the current user. You'll have to modify code a little bit if you want provide a domain name.
By default, the function returns an object with properties you can see in the code. It's up to you how to display that info on the form.