Setting the Wait Cursor type using ObjectARX and Win32

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static HHOOK MyHook;

static HCURSOR hWaitCursor;

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static LRESULT CALLBACK MyMsgProc (int nCode, WPARAM wParam, LPARAM lParam);

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// This is command ‘WAITCURSOR, by Fenton Webb [14/10/2004], DevTech, Autodesk

void asdkWaitCursor()

{

  // load the Wait cursor

  hWaitCursor = LoadCursor(NULL, IDC_WAIT);  

  // and set it

  HCURSOR hCursor = SetCursor(hWaitCursor); 

  // now set a hook so we can constantly keep our cursor set

  MyHook = SetWindowsHookEx(WH_CALLWNDPROCRET, (HOOKPROC)MyMsgProc, (HINSTANCE)

 NULL, GetCurrentThreadId ()); 

  // now do the wait intensive task…

  ACHAR cResult [256];

  acedGetString (0, _T("\nPretending to wait : "), cResult); 

  // and finally clean up

  UnhookWindowsHookEx (MyHook) ;

  SetCursor (hCursor) ;

}

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LRESULT CALLBACK MyMsgProc (int nCode, WPARAM wParam, LPARAM lParam)

{

  // forward the other hook calls

  if ( nCode < 0 ) 

    return (CallNextHookEx(MyHook, nCode, wParam, lParam)); 

  LRESULT ret = CallNextHookEx(MyHook, nCode, wParam, lParam);

  // keep updating our cursor type

  SetCursor (hWaitCursor); 

  return (ret) ;

}