IDvdInfo2::GetAudioLanguage method (strmif.h)

Article
07/27/2023

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetAudioLanguage method retrieves the language of the specified audio stream within the current title.

Syntax

HRESULT GetAudioLanguage(
  [in]  ULONG ulStream,
  [out] LCID  *pLanguage
);

Parameters

[in] ulStream

Audio stream number for the language being retrieved.

[out] pLanguage

Receives the language information.

Return value

Returns one of the following HRESULT values.

Return code	Description
S_OK	Success.
E_INVALIDARG	Invalid argument.
E_POINTER	The pLanguage parameter is NULL.
E_UNEXPECTED	The DVD Navigator is not initialized.
VFW_E_DVD_INVALIDDOMAIN	DVD Navigator is not in a valid domain.

Remarks

This method does not return languages for menus. It sets the value pointed to by pLanguage to zero if the stream contains an unknown language. Call the GetLocaleInfo function to create a human-readable string name from pLanguage:

C++
LCID Language; hr = pDvdInfo->GetAudioLanguage(ulStream, &Language); if (SUCCEEDED(hr)) { int cchSize = GetLocaleInfo(Language, LOCALE_SENGLANGUAGE, 0, 0); TCHAR szString = new TCHAR[cchSize]; if (szString) { GetLocaleInfo(Language, LOCALE_SENGLANGUAGE, szString, cchSize); / ... */ delete [] szString; } }

C++

LCID Language;
hr = pDvdInfo->GetAudioLanguage(ulStream, &Language);
if (SUCCEEDED(hr))
{
    int cchSize = GetLocaleInfo(Language, LOCALE_SENGLANGUAGE, 0, 0);
    TCHAR *szString = new TCHAR[cchSize];
    if (szString)
    {
        GetLocaleInfo(Language, LOCALE_SENGLANGUAGE, szString, cchSize);
        /* ... */
        delete [] szString;
    }
}

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib