ITransactionImportWhereabouts
Applies To: Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server Technical Preview, Windows Vista
ITransactionImportWhereabouts interface is used when propagating transactions from one process to another or one system to another. The resource manager uses this interface to retrieve an opaque address called the whereabouts from its transaction manager. The whereabouts describes the location of the transaction manager. The resource manager sends the whereabouts to the RM proxy. The RM proxy sends the whereabouts to its transaction manager. The whereabouts lets the transaction manager on the RM proxy's system to locate the transaction manager on the resource manager's system. This permits the two transaction managers to communicate with one another and thereby propagate a transaction from one system to the other.
When to Implement
You do not need to implement this interface. It is implemented by the core object of the DTC Proxy.
When to Use
Use this interface to retrieve an opaque address called the whereabouts from its transaction manager.
Methods in Vtable Order
- IUnknown methods
| ITransactionImportWhereabouts methods | Description |
|---|---|
| GetWhereaboutsSize | Returns the length in bytes of the whereabouts of the local transaction manager. |
| GetWhereabouts | Returns the whereabouts of the local transaction manager. |
Remarks
You can either call the DtcGetTransactionManager function with a riid of IID_ITransactionImportWhereabouts when initially connecting to DTC or Call QueryInterface on any interface on the DTC proxy core object with a riid of IID_ITransactionImportWhereabouts.
Requirements
For an explanation of the requirement values, see Requirements (Component Services).
Platforms: Windows Server 2016, Windows 10, Windows Server 2012 R2, Windows 8.1, Windows Server 2012, Windows 8, Windows Server 2008 R2, Windows 7, Windows Server 2008, Windows Vista
Header: Declared in txcoord.h