I'm creating a C++ program using mainly dialogs, and I want to make a global struct so that all files can use.

For example


Dlg1.cpp has


struct blah {


int x;


};





and I need Dlg2.cpp to access that struct but I can't get it to work. Any help?

I'm creating a C++ program using mainly dialogs, and I want to make a global struct so that all files can use.
Here's the tried-and-true way to do it in C. There may be a more C++-like technique.





(1) Create a header file, such as blah.h, and put this in the header:





extern struct blah {


int x;


}





(2) Include that header in both Dlg1.cpp and Dlg2.cpp.





(3) Retain the existing definition of blah (without the extern) in Dlg1.cpp.

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