C / C++ / MFC

// read PrinterPorts section from win.ini
        // returned string should be of the form "driver,port,timeout,timeout", i.e. "winspool,LPT1:,15,45".
GetProfileString(TEXT("Windows"),TEXT("Device"),_T(",,,"),m_szName, COUNTOF(m_szName));
WriteProfileString(TEXT("Windows"),TEXT("Device"),pszPrinterName ));
        // Notify all open applications of the change. Note, only applications that handle the message will recognize the change.
#if WM_WININICHANGE != WM_SETTINGCHANGE
        // Old message type; for windows 95
SendNotifyMessage(HWND_BROADCAST,WM_WININICHANGE,0,(LPARAM)szWindows);
#endif
        // New message type
SendNotifyMessage(HWND_BROADCAST,WM_SETTINGCHANGE,0,(LPARAM)szWindows);

STDMETHOD(SetMetafile)(VARIANT GlobMeta)
{         
   HGLOBAL hGlob = (HGLOBAL) GlobMeta.lVal;
   IStream *pStream = NULL;
   HRESULT hr = ::CreateStreamOnHGlobal(hGlob, TRUE, &pStream);         

   if(!pStream) return S_FALSE;
   
   if(!SetMeta(pStream, &_Pict)) {
      return S_FALSE;
   } 
   pStream->Release();

	return S_OK;
} 


BOOL SetMeta(IStream *pStream, IPicture  **Pict)
{   
   BOOL bResult = FALSE;
   CComPtr<IPictureDisp> pic;   
   LARGE_INTEGER l;
   l.QuadPart  =0;
   pStream->Seek(l, STREAM_SEEK_SET, NULL);                                 

   OleLoadPicture(pStream, l.LowPart, FALSE, IID_IPictureDisp, (void **) &pic);

   if(pic != NULL) {
      pic->QueryInterface(IID_IPicture, (void **) Pict);
      if(Pict) {         
         bResult = TRUE;
      }
   }
   
	return bResult;
}