Question

There is a dll, which contains the function.

extern "C" __ declspec (dllexport) int iRun (int argv, char ** argc)

In the project on C # I connect dll, and the actual question.
It is possible and how to initialize variable char **?

Answer 1

[DllImport("Your.dll")]
internal static extern Int32 iRun(Int32 argv, out IntPtr argc);

IntPtr argc;
Int32 result = iRun(argv, out argc);
String argcString = Marshal.PtrToStringAnsi(argc);

Have a look at the Marshal.PtrToStringAnsi Method reference.