TmGetTransactionId function (wdm.h)

The TmGetTransactionId routine retrieves a transaction object's unit of work (UOW) identifier.

Syntax

void TmGetTransactionId(
  [in]  PKTRANSACTION Transaction,
  [out] PUOW          TransactionId
);

[in] Transaction

A pointer to a transaction object. To obtain this pointer, your component must call ObReferenceObjectByHandle and supply the object handle that a previous call to ZwCreateTransaction or ZwOpenTransaction provided.

[out] TransactionId

A pointer to a location that receives the transaction object's UOW identifier.

None

For information about when to use KTM's TmXxx routines instead of ZwXxx routines, see Using TmXxx Routines.

Requirement	Value
Minimum supported client	Available in Windows Vista and later operating system versions.
Target Platform	Universal
Header	wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe
IRQL	Any level