如何在C＃上为包装的C ++方法编写一个签名，该包装具有指向函数及其参数的指针？

Question

I'm writing a wrapper for a dll. The dll has a method whose signature resembles the following:

unsigned long aMethod(void *anyParameter, 
void (*anotherMethod)(const char *,  void *))

I've searching at google for a tutorial to give me insight on how to write the signature on C# so the framework can do the marshalling process.

How can it be written? Do you know about any tutorial, book or documentation on this subject?

Answer 1

[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
delegate void AnotherMethodDelegate(string s, IntPtr anyParameter);

[DllImport("dllname",
           CallingConvention = CallingConvention.Cdecl,
           CharSet = CharSet.Ansi)]
uint aMethod(IntPtr anyParameter, AnotherMethodDelegate anotherMethod);