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IltmmMediaInfo::get_SourceMediaType

Summary

Retrieves the media type of the current source media file.

Syntax

#include "ltmm.h"

Language	Syntax
C	HRESULT IltmmMediaInfo_get_SourceMediaType(pMediaInfo, pVal)
C++	HRESULT get_SourceMediaType(pVal)

Parameters

IltmmMediaTypeDisp **pVal

Pointer to a variable to be updated with a pointer to an IltmmMediaTypeDisp interface. This interface references information about the media type of the file.

Returns

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.

Comments

If the function succeeds, the caller must free the interface referenced by the MediaType 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.