callback in a class

[CVMichael]

I need to make a callback for a function in a class, when i just declare the function itself, the compiler complains when i want to pass the pointer to the function.

I know the anser has to do with a typedef (did something like this a long time ago), but I forgot how to declare the function with it....

here's something similar to what I have

class myclass
{
private:
    void CALLBACK myCallbackFunction(long num);
    void some_other_function(void);
}

void CALLBACK myclass::myCallbackFunction(long num)
{
}

void myclass::some_other_function(void)
{
      // compiler gives error on next line
      // cannot convert (function prototype here) to DWORD_PTR
      
      ret = API_function((DWORD_PTR)myCallbackFunction);
}

Anyone knows how to make it work ?