Please reread my previous post, then please answer the questions in the first paragraph. From the information you've supplied so far, it's not clear exactly where you're trying to do your formatting. You need to give the context of the code snippet you've provided.

What, exactly, do you mean by the statement "I've found that the edit box is either set to "CString" or "CEdit" but not both ..."? The edit box is almost certainly an object of type CEdit. I don't understand what you mean when you talk about "setting" it to some other type. Do you mean that you are assigning the CEdit box to a CString object? I don't see anything like that in your code.

From some of the comments you've made ("the edit box is either set to 'CString' or 'CEdit' but not both", "I've been getting pretty familiar with the class wizard", "I just can't seem to fwrite it correctly", etc.), I'd guess that you're in over your head already. I think you're going to have trouble trying to hack an existing program without understanding the fundamentals. In my opinion, "sink or swim" is not a very good approach for learning MFC, and trying to use tools like the Class Wizard without understanding what you are doing is just going to make things worse.

So I'd suggest one of two approaches. If all you need to do is modify this one program and then get on with your life, then just find somebody who can do it for you. On the other hand, if you want to be a proficient Windows programmer, then back up and start from the beginning. Programming Windows with MFC by Jeff Prosise is a good place to start if you need to support existing MFC/C++ programs. If you plan on doing mostly new stuff, then you might consider learning C# and .NET instead (although that won't help you directly with your present problem).

-- Russ