QueryTraceProcessingHandle function (evntrace.h)

Retrieves information about an ETW trace processing session opened by OpenTrace.

Syntax

ETW_APP_DECLSPEC_DEPRECATED ULONG WMIAPI QueryTraceProcessingHandle(
  [in]            PROCESSTRACE_HANDLE          ProcessingHandle,
  [in]            ETW_PROCESS_HANDLE_INFO_TYPE InformationClass,
  [in, optional]  PVOID                        InBuffer,
  [in]            ULONG                        InBufferSize,
  [out, optional] PVOID                        OutBuffer,
  [in]            ULONG                        OutBufferSize,
  [out]           PULONG                       ReturnLength
);

Parameters

[in] ProcessingHandle

A valid handle created with OpenTrace that the data should be queried from.

[in] InformationClass

An ETW_PROCESS_HANDLE_INFO_TYPE value that specifies what kind of operation will be done on the handle.

[in, optional] InBuffer

Reserved for future use. May be null.

[in] InBufferSize

Size in bytes of the InBuffer.

[out, optional] OutBuffer

Buffer provided by the caller to receive output data.

[in] OutBufferSize

Size in bytes of OutBuffer.

[out] ReturnLength

The size in bytes of the data that the API wrote into OutBuffer. Used for variable length returns.

Return value

If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value is one of the system error codes.

Requirements