This is the complete list of members for IWMHeaderInfo3, including all inherited members.

AddAttribute([in] WORD stream_num, [in] LPCWSTR name, [out] WORD index, [in] WMT_ATTR_DATATYPE type, [in] WORD lang_index, [in, size_is(length)] const BYTE value, [in] DWORD length)	IWMHeaderInfo3
AddCodecInfo([in] LPCWSTR_WMSDK_TYPE_SAFE name, [in] LPCWSTR_WMSDK_TYPE_SAFE description, [in] WMT_CODEC_INFO_TYPE codec_type, [in] WORD codec_info_cnt, [in, size_is(codec_info_cnt)] BYTE *codec_info)	IWMHeaderInfo3
AddMarker([in] LPCWSTR_WMSDK_TYPE_SAFE marker_name, [in] QWORD marker_time)	IWMHeaderInfo
AddRef()	IUnknown
AddScript([in] LPCWSTR_WMSDK_TYPE_SAFE type, [in] LPCWSTR_WMSDK_TYPE_SAFE command, [in] QWORD script_time)	IWMHeaderInfo
DeleteAttribute([in] WORD stream_num, [in] WORD index)	IWMHeaderInfo3
GetAttributeByIndex([in] WORD index, [in, out] WORD stream_num, [out, size_is(name_len)] WCHAR name, [in, out] WORD name_len, [out] WMT_ATTR_DATATYPE type, [out, size_is(length)] BYTE value, [in, out] WORD length)	IWMHeaderInfo
GetAttributeByIndexEx([in] WORD stream_num, [in] WORD index, [out, size_is(name_len)] LPWSTR name, [in, out] WORD name_len, [out] WMT_ATTR_DATATYPE type, [out] WORD lang_index, [out, size_is(data_len)] BYTE value, [in, out] DWORD *data_len)	IWMHeaderInfo3
GetAttributeByName([in, out] WORD stream_num, [in] LPCWSTR name, [out] WMT_ATTR_DATATYPE type, [out, size_is(length)] BYTE value, [in, out] WORD *length)	IWMHeaderInfo
GetAttributeCount([in] WORD stream_num, [out] WORD *attributes)	IWMHeaderInfo
GetAttributeCountEx([in] WORD stream_num, [out] WORD *attributes)	IWMHeaderInfo3
GetAttributeIndices([in] WORD stream_num, [in] LPCWSTR name, [in] WORD lang_index, [out, size_is(count)] WORD indices, [in, out] WORD count)	IWMHeaderInfo3
GetCodecInfo([in] DWORD index, [in, out] WORD name_len, [out, size_is(name_len)] WCHAR name, [in, out] WORD description_len, [out, size_is(description_len)] WCHAR description, [out] WMT_CODEC_INFO_TYPE codec_type, [in, out] WORD codec_info_cnt, [out, size_is(codec_info_cnt)] BYTE codec_info)	IWMHeaderInfo2
GetCodecInfoCount([out] DWORD *codec_infos)	IWMHeaderInfo2
GetMarker([in] WORD index, [out, size_is(marker_len)] WCHAR marker_name, [in, out] WORD marker_len, [out] QWORD marker_time)	IWMHeaderInfo
GetMarkerCount([out] WORD *markers)	IWMHeaderInfo
GetScript([in] WORD index, [out, size_is(type_len)] WCHAR type, [in, out] WORD type_len, [out, size_is(command_len)] WCHAR command, [in, out] WORD command_len, [out] QWORD *script_time)	IWMHeaderInfo
GetScriptCount([out] WORD *scripts)	IWMHeaderInfo
LPUNKNOWN typedef	IUnknown
ModifyAttribute([in] WORD stream_num, [in] WORD index, [in] WMT_ATTR_DATATYPE type, [in] WORD lang_index, [in, size_is(length)] const BYTE *value, [in] DWORD length)	IWMHeaderInfo3
QueryInterface([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)	IUnknown
Release()	IUnknown
RemoveMarker([in] WORD index)	IWMHeaderInfo
RemoveScript([in] WORD index)	IWMHeaderInfo
SetAttribute([in] WORD stream_num, [in] LPCWSTR name, [in] WMT_ATTR_DATATYPE type, [in, size_is(length)] const BYTE *value, [in] WORD length)	IWMHeaderInfo