title: How to send function pointers from VFP to C language dll
body: <p>Say I have a function in C language dll as show below</p>
  <pre><code>EXTERN_C void WINAPI LoadCallbackInt(PCALLBACKINTFUNC func);
  </code></pre>
  <p>with the function pointer being defined as the following</p>
  <pre><code>typedef void (WINAPI *PCALLBACKINTFUNC)(int value);
  </code></pre>
  <p>How do call the function and send the <code>PCALLBACKINTFUNC</code> parameters when VFP? Or else, is there other methods to implement events in dll that is used with VFP (assuming that I am not allowed to use COM of OCX for this problem)?</p>