PRB: DDP_PostProcessing() Catches All Exceptions

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Sample Code

  struct AFX_DDPDATA : public CObject
   {
      AFX_DDPDATA(LPVOID lpHandler, int nCtrlId, LPVOID lpMember,
         UINT nType, LPCTSTR lpszOleName);

      LPVOID  m_lpHandler;
      int     m_nCtrlId;
      LPVOID  m_lpMember;
      UINT    m_nType;
      LPCTSTR m_lpszOleName;
   };

   AFX_DDPDATA::AFX_DDPDATA(LPVOID lpHandler, int nCtrlId,
      LPVOID lpMember, UINT nType, LPCTSTR lpszOleName ) :
         m_lpHandler(lpHandler),
         m_nCtrlId(nCtrlId),
         m_lpMember(lpMember),
         m_nType(nType),
         m_lpszOleName(lpszOleName)
   {
   }

   void AFXAPI DDP_PostProcessingEx(CDataExchange*pDX)
   {
      if ( pDX->m_bSaveAndValidate )
      {
         WORD wKey;
         CMapWordToOb &m_DDPmap =((COlePropertyPage*)pDX->m_pDlgWnd)->
                                    m_DDPmap;
         AFX_DDPDATA *pDDP = NULL;
         POSITION pos = m_DDPmap.GetStartPosition();

         while( pos )
         {
            m_DDPmap.GetNextAssoc( pos, wKey, (CObject *&)pDDP);
            TRY
            {
               switch( pDDP->m_nType )
               {
                  case    VT_I1:
                {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        char *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (char *)pDDP->m_lpMember, pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_UI1:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        BYTE *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (BYTE *)pDDP->m_lpMember, pDDP->m_lpszOleName);
                      break;
                  }
                  case    VT_I2:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        short *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (short *)pDDP->m_lpMember, pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_UI2:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        WORD *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (WORD *)pDDP->m_lpMember, pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_I4:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        long *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (long *)pDDP->m_lpMember, pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_UI4:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        DWORD *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (DWORD *)pDDP->m_lpMember, pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_R4:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        float *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX, pDDP->m_nCtrlId,
                        (float *)pDDP->m_lpMember,pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_R8:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *, int,
                        double *, LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX,pDDP->m_nCtrlId,
                        (double *)pDDP->m_lpMember,pDDP->m_lpszOleName);
                     break;
                  }
                  case    VT_BSTR:
                  {
                     typedef void (AFXAPI *PFV)(CDataExchange *,int,
                        CString *,LPCTSTR );
                     (*(PFV)pDDP->m_lpHandler)(pDX,pDDP->m_nCtrlId,
                        (CString*)pDDP->m_lpMember,pDDP->m_lpszOleName);
                     break;
                  }
                  default:
                     // Unknown Data Type!
                     ASSERT(FALSE);
                     break;
               }
            }
            CATCH(COleDispatchException, e)
            {
               // display a message box describing caught exception
               HWND hWndActive = ::GetActiveWindow();
               char szTitle[255];
               ::GetWindowText(hWndActive, szTitle, sizeof(szTitle));
               ::MessageBox(hWndActive, (LPCSTR)e->m_strDescription,
                  szTitle, MB_ICONEXCLAMATION|MB_TASKMODAL|MB_OK);
            }
            AND_CATCH_ALL(e)
            {
               // Ignore all other exceptions
            }
            END_CATCH_ALL
            delete pDDP;
         }
         m_DDPmap.RemoveAll();
      }
   }