Solved

How to integrate old source code in a project?

Posted on 1998-11-27
6
213 Views
Last Modified: 2010-04-01
I know this is a basic question but how do you integrate old (non MFC) source code into Visual C++ projects, I want to add header files for classes from another compiler, these files don't contain any of the MFC sentries and file footer junk:

eg
#if !defined(AFX_CHILDFRM_H__7998714E_43DE_11D2_8D97_00400558667B__INCLUDED_)
#define AFX_CHILDFRM_H__7998714E_43DE_11D2_8D97_00400558667B__INCLUDED_

#endif // !defined(AFX_CHILDFRM_H__7998714E_43DE_11D2_8D97_00400558667B__INCLUDED_)

If the files are just added to the project as they are then when this is done Microsoft gives an error. How can I add these files to my project so that the classes are recognized?
0
Comment
Question by:gavinpat
6 Comments
 
LVL 86

Expert Comment

by:jkr
Comment Utility
Well, i never experienced big problems when integrating 'foreign' code to MFC projects (yep, of course, there were smaller ones ;-) What error does the compiler give?
0
 
LVL 8

Expert Comment

by:Answers2000
Comment Utility
Project/Add To Project/Files...

I do this all the time.  As I prefer to write my headers by hand.

The crap at the bottom and top of the file, is to prevent the same .h being included more than once...basically the 1st time thru, the symbol AFX_whatever won't be defined, therefore the #if stuff will get included, and the symbol will be defined...the 2nd time, the symbol is already defined, so most of the header is not processed.

The reason for all those hex numbers is just to make a unique symbol name.  There is no magic there.
0
 

Expert Comment

by:McCreary
Comment Utility
Chances are your code implementation does not #include <stdafx.h> and the compiler will complain about missing the pre-compiled reader.  I am assuming that you are using Visual C++ compiler in IDE.  Go to Project/Setitings menu.  On Project Settings dialog use Tab C/C++.  Highlite the offending .CPP file.  In the Category list box find "Precompiled Headers"  Now set the radio button "Not using precompiled headrs."
0
Maximize Your Threat Intelligence Reporting

Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

 

Author Comment

by:gavinpat
Comment Utility
McCreary's answer is the one I wanted I'm afraid I'm forced to reject yours (Answer2000) to accept his.
0
 
LVL 8

Expert Comment

by:Answers2000
Comment Utility
ok, i didn't guess which part you were having trouble with!

See you round
0
 

Accepted Solution

by:
McCreary earned 70 total points
Comment Utility
Chances are your code implementation does not #include <stdafx.h> and the compiler will complain about missing the pre-compiled reader.  I am assuming that you are using Visual C++ compiler in IDE.  Go to Project/Setitings menu.  On Project Settings dialog use Tab C/C++.  Highlite the offending .CPP file.  In the Category list box find "Precompiled Headers"  Now set the radio button "Not using precompiled headrs."
I should have made this an answer instead of a comment.  Do I get the 75 points?
0

Featured Post

Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

Join & Write a Comment

Templates For Beginners Or How To Encourage The Compiler To Work For You Introduction This tutorial is targeted at the reader who is, perhaps, familiar with the basics of C++ but would prefer a little slower introduction to the more ad…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

743 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now