[BNETDOCS]
[code]
(DWORD) State
(DWORD) Unknown
(WORD) Game Type
(WORD) Parameter
(DWORD) Unknown (1F)
(DWORD) Unknown (0)
(STRING) Game name
(STRING) Game password
(STRING) Game Statstring
[/code]

[MINE]
[code]
(DWORD) Game State.
(DWORD) Time Count since creation.
(WORD) Game Type.
(WORD) Parameter.
(DWORD) Always 0X1F.
(BOOLEAN) Ladder
(STRING) GAMENAME
(STRING) GAMEPASSWORD
(STRING) MAP STATSTRING
[/code]

STATES:
0x00 - Game is public.
0x01 - Game is private.
0x04 - Game contains players.
0x06 - Game is full.
0x0C - Game Start.

I'm not 100% sure.