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4/8/2010

This method sets the file into which actions taken in attempting to perform an operation are logged.

Syntax 

HRESULT SetLogFile(
  HANDLE 
hFile
);

Parameters

hFile

[in] Handle to the log file.

Return Value

Returns an HRESULTvalue that depends on the implementation. HRESULTcan be one of the following standard constants, or other values not listed.

Value Description

E_FAIL

Failure.

E_POINTER

Null pointer argument.

E_INVALIDARG

Invalid argument.

E_NOTIMPL

Method is not supported.

S_OK or NOERROR

Success.

Remarks

Note to OEMs: To enable logging with IGraphBuilder::SetLogFile, you must set SYSGEN_DSHOW_ERRORS when building your platform.

The hFileparameter must be an open file handle. After calling this method with a valid file handle, actions taken by IGraphBuildermethods when attempting to build a filter graph are logged to this file. This is intended to help you determine the cause of any failure to automatically build a filter graph.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Windows CE 2.12 requires DXPAK 1.0 or later

See Also