Usng header file defines in C# Code

[asafaa]

i need to create a header (*.h) file with these defines :

#define MY_FIRST_DEFINE 1
#define MY_SECOND_DEFINE 2
#define MY_THIRD_DEFINE 3

and use it in a cs file - C# Code.

How do i include it ?
do i need to write a special code in the header file ?
do i need to write a special code in the C# file ?

thanks.