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IWTTLog::CloseLogDevice method

  • Article

The CloseLogDevice method closes a log device topology that the device string or the handle specifies.

Syntax

HRESULT CloseLogDevice(
  BSTR bstrLogDeviceName,
  LONG hDevice
);

Parameters

  • bstrLogDeviceName
    [in] A log device string, which has the following syntax.

    $<device_type>:<parameter_list>($<child_device1>[; $<child_device2>; ...])

    For more information about constructing a device string, see Device String.

  • 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

CloseLogDevice returns one of the following values:

Return code Description
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.

 

Remarks

If a handle is specified in the hDevice parameter, the device string in the bstrLogDeviceName parameter is ignored.

Requirements

IDL

 Log.IDL

Library

 WTTLogCM.dll

See also

IWTTLog Interface (COM)

 

 

Build date: 9/14/2012