C++/CLI System.AccessViolationException when calling unmanaged function in managed class

Question

I have a native callback function in C++, let\'s say something like this:

void ::CallbackFunction(void)
{
  // Do nothing
}

Now I have another

Answer 1

The native part was set up wrong:

void ::SomeNativeFunction(void)
{
  m_callback = std::tr1::bind(&::CallbackFunction, m_Tcy); // save in m_callback | m_Tcy is the class where CallbackFunction exists
  //this won't work
  m_Tcy->SomeManagedFunction(m_callback);
}

This worked for me:

void ::SomeNativeFunction(void)
    {
      m_callback = std::tr1::bind(&::CallbackFunction, m_Tcy); // save in m_callback | m_Tcy is the class where CallbackFunction exists
      //this works, even tho the debugger dies on me when I try to debug this
      m_Tcy->SomeManagedFunction(&m_callback);
    }

The callback stuff works, but still getting a error in the native main though:

First-chance exception at 0x00007ffb2b59dd60 in *.exe: 0xC0000005: Access violation at location 0x00007ffb2b59dd60.
Unhandled exception at 0x00007ffb2b59dd60 in *.exe: 0xC000041D: Exception during a user callback.

Also, my visual studio 2010 crashes when debugging the callback (in my C++/CLI wrapper). If I wait long enough, it throws the following exceptions:

Access violation reading location 0xfffffffffffffff8.