CComBSTR::Detach
Dispara m_str do objeto de CComBSTR e defina m_str a NULO.
BSTR Detach( ) throw( );
Valor de retorno
BSTR associado ao objeto de CComBSTR .
Exemplo
// Method which converts bstrIn to uppercase
STDMETHODIMP BSTRToUpper(BSTR bstrIn, BSTR* pbstrOut)
{
if (bstrIn == NULL || pbstrOut == NULL)
return E_POINTER;
// Create a temporary copy of bstrIn
CComBSTR bstrTemp(bstrIn);
if (!bstrTemp)
return E_OUTOFMEMORY;
// Make string uppercase
HRESULT hr;
hr = bstrTemp.ToUpper();
if (hr != S_OK)
return hr;
// Return m_str member of bstrTemp
*pbstrOut = bstrTemp.Detach();
return S_OK;
}
Requisitos
Cabeçalho: atlbase.h