help with global variables in MFC dialog Application

Dear all,

I am using MFC dialog application to get an text input from the user and make processing on it and then reply with response but I need to declare some variables to be working throughout the whole system cycle(I think its called global variables) to be accessible whereever from my system coding files. Because I need to deal with the variable changes during the system cycle.

I tired many things Like: static ,extern. But till now I'm beginner in this language so I didn't know how to deal with them in .cpp files.

Please any help will be appreciated.


Best regards.

In your main application's .cpp file, you can declare your global variable at the top of the file

Code:

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int g_nValue;

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Then in each other .cpp file you need access to it, at the top of the file

Code:

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extern int g_nValue;

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By the way, this belongs in the Visual C++ forum

Thank you for your help. its work fine