AcRxObject AcDbTransactionManager AcTransactionManager
class AcDbTransactionManager : public AcRxObject;
dbtrans.h
There is a single object of class AcDbTransactionManager created by the ObjectARX system when AutoCAD first starts up. This AcDbTransactionManager object is globally available to all ObjectARX applications.
The system AcDbTransactionManager object is used to start, end, or terminate transactions. In addition, it provides functionality to manage transactions and the objects within them.
For more information on the transaction mechanism, see the transaction section in the ObjectARX Developer's Guide.
AcDbTransactionManager Methods
AcTransaction, acdbOpenObject