Retrieves the filter of the current source media file.


#include "ltmm.h"

Language Syntax
C HRESULT IltmmMediaInfo_get_SourceFilter(pMediaInfo, pVal)
C++ HRESULT get_SourceFilter(pVal)


IltmmMediaInfo *pMediaInfo

Pointer to an IltmmMediaInfo Interface.

IUnknown **pVal

Pointer to a variable to be updated with the filter's interface pointer.


Value Meaning
S_OK The function was successful.
<> S_OK An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.


If the function succeeds, the caller must free the interface referenced by the SrcFilter parameter by calling the interface's Release function.

To get the current source media file, call IltmmMediaInfo::get_SourceFile.

The current source media file, set using IltmmMediaInfo::put_SourceFile, is the file for which the IltmmMediaInfo interface/object gets information. This function must be called before calling any of the other IltmmMediaInfo functions used for retrieving information.

Call IltmmMediaInfo::ResetSource to release the source file when it is no longer needed.

Required DLLs and Libraries


Win32, x64.

See Also




Language Example
C Retrieving Media File Information
C++ Retrieving Media File Information
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LEADTOOLS Multimedia C API Help

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.