SelectedSourceName Example for C++ 5.0 and later

ILEADRasterTwain_U * pRasterTwain;

HRESULT hr = ::CoCreateInstance(CLSID_LEADRasterTwain_U, NULL, CLSCTX_ALL, IID_ILEADRasterTwain_U, (void **)&pRasterTwain);
if (FAILED(hr) || !pRasterTwain)
{
	::MessageBox (NULL, _TEXT("Failed to create a Raster Twain Object"), _TEXT("Error"), MB_OK);
	return;
}

pRasterTwain->InitSession((long)GetSafeHwnd()); 
pRasterTwain->SelectSource();

CString csBuffer;

csBuffer.Format(TEXT("The current selected source is: %s"), (TCHAR *)pRasterTwain->GetSelectedSourceName());
MessageBox(csBuffer, TEXT("Selected Source Name"));