Sets value of attribute. This method works only with attributes, whose values are strings.

Sub AttributesStringSet( _
   ByVal _bsName As String, _
   ByVal _bsValue As String _
) 

void AttributesStringSet( 
   string _bsName,
   string _bsValue
)

procedure AttributesStringSet( 
    _bsName: String;
    _bsValue: String
); 

void AttributesStringSet( 
   BSTR* _bsName,
   BSTR* _bsValue
) 

m_pAttributes.AttributesStringSet("pos", "center")

m_pAttributes.AttributesStringSet("pos", "center");

m_pAttributes.AttributesStringSet('pos', 'center');