IProvHelper::QueryProperty
Queries the property bag for the value of a key name/value pair and returns the property. Used by providers that interact with Microsoft. Provisioning Framework (MPF).
Syntax
C++ HRESULT QueryProperty ( BSTR bstrKey, VARIANT* pvValue );Visual Basic Function QueryProperty ( _ bstrKey As String _ ) As VariantParameters
- bstrKey
- Key name.
- pvValue (C++) / return value (VB)
- Returned value.
Return Codes
Zero indicates success; a non-zero value represents an error. For a list of error codes, see MPF Errors.
C++ Example
BSTR bstrKey; VARIANT vValue; HRESULT hr = E_OUTOFMEMORY; bstrKey = ::SysAllocString(L"key"); ::VariantInit(&vValue); if(bstrKey) hr = m_pProvHelper->QueryProperty(bstrKey, &vValue); ::SysFreeString(bstrKey); ::VariantClear(vValue);Visual Basic Example
Dim strKey Dim vValue strKey = "key" vValue = mProvHelper.QueryProperty(strKey)See Also
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