Pointers in C#

Question

hi Any one can help me in the following i have two functions in dll.dll as int addition(int aint b); char* functionname (char* string); i'm calling this function in C#.NET program using [DllImport(dll.dll)] static extern int addition(int aint b); how can i declare the character pointer in C# . but i didn't try IntPtrcan any one help me using unsafe code. Thanks prakash

Mike Gold · Answer

I believe you can marshal char * as a string if you are just sending it as input. If you are filling a string you should use StringBuilder to marshal it.