I'm developing in VS2010 and looking to add code to an already existing project.
This is a Win32/MFC by the way.
And I couldn't help but notice that in class MyClass (in this case MyClass was an extension of the CDialog Class) the following was included at the top of the cpp file:
will be searched on INCLUDE_DIR path, which is defined in your project settings.
./myclass.h" will be searched in the same directory than the current file.
Windows files names are not case-sensitive so if your working dir is in your include path, these lines are pointing to the same file.
This redundancy is probably a way for VS to ensure the file will be included at least once...