CComBSTR::Detach

BSTR Detach( );

Return Value

The BSTR associated with the CComBSTR object.

Remarks

Detaches m_str from the CComBSTR object and sets m_str to NULL.

Example

// Method which converts bstrIn to uppercase
STDMETHODIMP CPolyCtl::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
   _wcsupr(bstrTemp);

   // Return m_str member of bstrTemp
   *pbstrOut = bstrTemp.Detach();

   return S_OK;
}

CComBSTR Overview |  Class Members

See Also   CComBSTR::Attach