FormatAudioGetByIndex Method (MFLiveClass)
MFORMATSLib Namespace > MFLiveClass Class : FormatAudioGetByIndex Method
format's type
format's index
audio properties
format's name
Gets an audio format by its index
Syntax
Public Overridable Sub FormatAudioGetByIndex( _
   ByVal _eFormatType As eMFormatType, _
   ByVal _nIndex As Integer, _
   ByRef _pAudProps As M_AUD_PROPS, _
   ByRef _pbsName As String _
) 
public virtual void FormatAudioGetByIndex( 
   eMFormatType _eFormatType,
   int _nIndex,
   out M_AUD_PROPS _pAudProps,
   out string _pbsName
)
public procedure FormatAudioGetByIndex( 
    _eFormatType: eMFormatType;
    _nIndex: Integer;
   Out  _pAudProps: M_AUD_PROPS;
   Out  _pbsName: String
); virtual; 
public: virtual void FormatAudioGetByIndex( 
   eMFormatType _eFormatType,
   int _nIndex,
   [PARAMFLAG::Out] M_AUD_PROPS _pAudProps,
   [PARAMFLAG::Out] BSTR* _pbsName
)

Parameters

_eFormatType
format's type
_nIndex
format's index
_pAudProps
audio properties
_pbsName
format's name
Example

Here is an example of how to fill a combobox with all available input audio formats for a live source and select a current format:

M_AUD_PROPS audProps;
int fCount;
m_objLive.FormatAudioGetCount(eMFormatType.eMFT_Input, out fCount);
if (fCount > 0)
{
    for (int i = 0; i < fCount; i++)
    {
        string name;
        m_objLive.FormatAudioGetByIndex(eMFormatType.eMFT_Input, i, out audProps, out name);
        comboBoxAF.Items.Add(name);
    }
    // Get current format
    int nCurrent = 0;
    try
    {
        string strName;
        M_AUD_PROPS _audProps;
        m_objLive.FormatAudioGet(eMFormatType.eMFT_Input, out _audProps, out nCurrent, out strName);
    }
    catch (System.Exception) { }
    // Select a current format
    comboBoxAF.SelectedIndex = nCurrent;
}
See Also

Reference

MFLiveClass Class
MFLiveClass Members