IProvHelper::SetRollbackData

Saves rollback data to a transaction log. Used by providers that interact with Microsoft Provisioning Framework (MPF).

Rollback data is not saved until the provider procedure completes successfully or explicitly calls FlushRollbackData. During the IProvProvider::RollbackRequest call, data is retrieved using GetRollbackData.

Arguments

Remarks

C++ Syntax

HRESULT SetRollbackData  (
	BSTR bstrKey,
	VARIANT vValue
);

Visual Basic Syntax

Sub SetRollbackData ( _
	bstrKey As String, _
	vValue As Variant  _
)

Sample Code

Typical C++ Usage

BSTR bstrKey;
VARIANT vValue;
HRESULT hr = E_OUTOFMEMORY;

bstrKey = ::SysAllocString(L"fileName");
vValue.bstrVal = ::SysAllocString(L"sample.txt");
vValue.vt = VT_BSTR;

if(bstrKey && vValue.bstrVal)
	hr = m_pProvHelper->SetRollbackData(bstrKey, vValue);

::SysFreeString(bstrKey);
::VariantClear(vValue);

Typical Visual Basic Usage

Dim strKey
Dim vValue

strKey = "fileName"
vValue = "sample.txt"
Call mProvHelper.SetRollbackData(strKey, vValue)

Applies To