Exposing struct as method parameter

[alex1205]

I want to expose a user defined data type (struct) to clients using ATL. I also wanted this struct to be a parameter to one of my methods. Is there a way in which I could do this? SDE

[ian mariano]

If your class is foo and the structure is public or accessible to the calling object:

class foo
{
   public:
      struct  myStruct
      {
         int a;
         int b;
      }  myStruct;

      void   UseFooStruct(myStruct s);
}

class   bar
{
   public:
      void   UseFooStruct(foo::myStruct s);
}

[alex1205]

I think I must have phrased it wrong. I know what you mean. But what I wanted is to expose the struct to one of my interfaces, then be able to pass the struct from Visual basic to My VC++ COM object. Is this possible? SDE

[ian mariano]

Yes. You can define a user defined structure (a Type) in VB which corresponds to your C++ structure. That way, you can pass the structure back and forth. Look in the MSDN on how to do this: Passing User-Defined Types to a DLL Procedure. Of course, your Type declaration in VB must be equivalent to the C++ version.

Ian Mariano - http://www.ian-space.com/
"We are all wave equations in the information matrix of the universe" - me