If you write in your code something like #include "FileWrite.h" you need to make sure compiler can find that file. There are three options:
- FileWrite.h should either be in the same directory as your source code file (.cpp) or
- Path to that header file should should be listed in project's Properties (in C/C++ -> General -> Additional Include Directories) or
- Path could be set in your VisualStudio - add it to Include Files in Tools->Options->Projects and Solutions->VC++ Directories
Which of these options shell be used depends on whether that header originates from this project (1st option) or some other project (any of other two options).