title: how to import a header file into a C# project which imports a C++ dll
body: <p>The header file used by the C++ dll contains a few user defined type definitions and function declarations.I have browsed many sites and all the posters say that its not possible to import header file into C#.I would like to know if there is any way to import header file into C# code as it is required to declare the functions of the imported dll in the C# application class.</p>
  
  <p>Thanks</p>