Calculator with visual studio in c

The following C project contains the C source code and C examples used for calculator with [visual studio]. Iam new to c++, thats one of my first applications - i know i could have done it much more simply, but i wanted to test myself. It also should be a help for other newcomers. Comments are welcome!

The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.

Project Files: 

File NameSize
Calculator.cpp 2425