CWTTLogger::EnableTraceLevels

The EnableTraceLevels method enables the specified set of device trace levels.

HRESULT EnableTraceLevels (
  LPWSTR  pwszTraceLevels,
  LONG  hDevice
);

Parameters

pwszTraceLevels

[in] The string that contains a list of trace levels to be enabled.

hDevice

[in] A handle to the device tracing topology. You can combine multiple handles by using the bitwise OR operator (for example, hDevice1 OR hDevice2).

Return Value

EnableTraceLevels returns one of the following values:

  • S_OK
    The operation was successful.
  • S_FALSE
    The operation was successful but the last device has been detached, which has triggered a rollup.
  • HRESULT
    The operation failed. You should use the FAILED macro to check HRESULT values.

Requirements

Headers: Wttlogger.h

Library: WTTLog.dll

See Also

CWTTLogger Class (C++), CWTTLogger::DisableTraceLevels, CWTTLogger::SetDeviceTraceLevel

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Built on December 10, 2009