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TRACE_INFORMATION_CLASS enumeration (wdm.h)

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The TRACE_INFORMATION_CLASS enumeration type is used to indicate types of information associated with a WMI event tracing session.

Syntax

typedef enum _TRACE_INFORMATION_CLASS {
  TraceIdClass,
  TraceHandleClass,
  TraceEnableFlagsClass,
  TraceEnableLevelClass,
  GlobalLoggerHandleClass,
  EventLoggerHandleClass,
  AllLoggerHandlesClass,
  TraceHandleByNameClass,
  LoggerEventsLostClass,
  TraceSessionSettingsClass,
  LoggerEventsLoggedClass,
  DiskIoNotifyRoutinesClass,
  TraceInformationClassReserved1,
  FltIoNotifyRoutinesClass,
  TraceInformationClassReserved2,
  WdfNotifyRoutinesClass,
  MaxTraceInformationClass
} TRACE_INFORMATION_CLASS;

Constants

 
TraceIdClass
Retrieves the logger ID (ULONG) of an event tracing session given a caller-supplied Wnode.
TraceHandleClass
Retrieves a trace handle (TRACEHANDLE) for an event tracing session given a caller-supplied logger ID (ULONG).
TraceEnableFlagsClass
Retrieves the enable flags (ULONG) set on a caller-supplied event trace handle (TRACEHANDLE).
TraceEnableLevelClass
Retrieves the enable level (ULONG) set on a caller-supplied event trace handle (TRACEHANDLE).
GlobalLoggerHandleClass
Retrieves an event trace handle (TRACEHANDLE) for the global logger.
EventLoggerHandleClass
Reserved for use by the operating system.
AllLoggerHandlesClass
Retrieves an array of event trace handles (TRACEHANDLE array) for all valid loggers.
TraceHandleByNameClass
Retrieves an event trace handle (TRACEHANDLE) identified by a caller-supplied friendly name (UNICODE_STRING structure in buffer).
LoggerEventsLostClass
Retrieves the number (ULONG) of events lost for a logger session given a caller-supplied logger ID (ULONG).
TraceSessionSettingsClass
Retrieves the settings (ETW_TRACE_SESSION_SETTINGS structure) for a logger session given a caller-supplied trace handle (TRACEHANDLE).
LoggerEventsLoggedClass
Retrieves the number (ULONG) of events logged in a logger session given a caller-supplied logger ID (ULONG).
DiskIoNotifyRoutinesClass
Reserved for use by the operating system.
TraceInformationClassReserved1
Reserved for use by the operating system.
FltIoNotifyRoutinesClass
Reserved for use by the operating system.
TraceInformationClassReserved2
Reserved for use by the operating system.
WdfNotifyRoutinesClass
Reserved for use by the operating system.
MaxTraceInformationClass
The maximum value in this enumeration type.

Remarks

TRACE_INFORMATION_CLASS is provided primarily for use with the WmiQueryTraceInformation routine, which returns information about a WMI event tracing session.

Requirements

Requirement Value
Header wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)

See also

WmiFireEvent

WmiQueryTraceInformation

WmiTraceMessage

WmiTraceMessageVa