IltmmSupportManager::UnlockSupport Example for C++

IltmmSupportManager* m_pSprtMngr; 



HRESULT CConvertDlg::DVDUnlockSupport()

{

   VARIANT_BOOL vb; 



   HRESULT hr = CoCreateInstance(CLSID_ltmmSupportManager, NULL, CLSCTX_INPROC_SERVER, IID_IltmmSupportManager, (void**)&m_pSprtMngr); 

   if (hr != S_OK) 

      return -1; 



   m_pSprtMngr->IsSupportLocked (L_SUPPORT_CONVERTFROMDVD, &vb); 

   if (vb == VARIANT_TRUE) 

   {

      static TCHAR L_KEY_CONVERTFROMDVD[] = "DVDKey";



      USES_CONVERSION; 

      hr = m_pSprtMngr->UnlockSupport (L_SUPPORT_CONVERTFROMDVD, T2OLE(L_KEY_CONVERTFROMDVD)); 

      if (hr != S_OK) 

      {

         m_pSprtMngr->Release();

         return hr; 

      }

      m_pSprtMngr->IsSupportLocked (L_SUPPORT_CONVERTFROMDVD, &vb); 

      if (vb != VARIANT_FALSE) 

         return E_FAIL; 



      return S_OK; 

   }



   return S_OK; 

}