Question

I’m getting this error:

error C3767: 'phys1::point::get_prev': candidate function(s) not accessible

Here’s my code

phys.h

using namespace System;

namespace phys1 {

  typedef struct position{
    int x;
    int y;
  } pos;

 public ref class point{
   public:
     point(float speed, float gr);
   public:  
     pos get_prev();
   public: 
     pos get_next();
 };
}

phys.cpp

// This is the main DLL file.
#include "phys.h"

using namespace System;

namespace phys1 {
     ...
  static pos point::get_prev(){
    pos point;
    point.x=x;
    point.y=y;
    return point;
  }
    ...
}

Is it problem with my struct, which i try to use in library? Can i build it in another way?

Answer 1

If you’re trying to pass values of type pos across an assembly boundary, it should be a public managed type. public value struct pos would be most appropriate for what you’re doing.

Native types aren’t visible across assembly boundaries by default, and the #pragma that makes them visible is more of a kludge than a real solution. Just make a proper .NET type with metadata.