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IDirectPlayLobby3での拡張された機能の説明
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ConnectEx 構文
HRESULT ConnectEx(
DWORD dwFlags,
REFIID riid,
LPVOID *lplpDP,
IUnknown FAR *pUnk
);
パラメータ
- dwFlags
Flags indicating how the connection is to be done. By
default (dwFlags = 0), the method returns after a connection has been established
or the operation has timed out.
- DPCONNECT_RETURNSTATUS
- Returns immediately with the status of the connection.
The application must continue calling ConnectEx until a success or error code is
returned.
riid
The IID of the specific DirectPlay COM interface to be
returned; for example, IID_IDirectPlay4A.
lplpDP
Pointer to a pointer to be initialized with the
DirectPlay interface as specified by the riid parameter.
pUnk
Pointer to the containing IUnknown interface. This
parameter is provided for future compatibility with COM aggregation features. Presently,
however, IDirectPlayLobby3::ConnectEx returns an error if this parameter is
anything but NULL.
返り値
成功時 DP_OK、もしくはエラーが発生したので以下の値が代入される
| DPERR_CONNECTING |
| DPERR_INVALIDFLAGS |
| DPERR_INVALIDPARAMS
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The method returns
DPERR_CONNECTING while the connection operation is in progress. Call the methods again to
get an updated status.
Remarks
There is an upper limit of one minute on connection timeout.
After this method is successfully completed, the application can skip the process of
calling IDirectPlay4::InitializeConnection, IDirectPlay4::EnumSessions, and
IDirectPlay4::Open. The application should not ask the user a name but instead create a
player using the player name information in the DPLCONNECTION structure.
Before calling this method, the application can examine the connection settings that
will be used to start the application by using the
IDirectPlayLobby3::GetConnectionSettings method. The application then can modify these
settings and set them by using the IDirectPlayLobby3::SetConnectionSettings method. The
application should pay particular attention to the DPSESSIONDESC2 structure to ensure that
the proper session properties are set, especially dwFlags, dwMaxPlayers, and
the dwUser members.
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RegisterApplication 構文
HRESULT RegisterApplication(
DWORD dwFlags,
LPDPAPPLICATIONDESC lpAppDesc
);
パラメータ
- dwFlags
予約済み; 常に 0 .
lpAppDesc
DPAPPLICATIONDESC
構造体へのポインター。あらかじめアプリケーション登録用パラメータを代入しておくこと。
返り値
成功時 DP_OK、もしくはエラーが発生したので以下の値が代入される
| DPERR_INVALIDFLAGS |
| DPERR_INVALIDPARAMS
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UnregisterApplication 構文
HRESULT UnregisterApplication(
DWORD dwFlags,
REFGUID guidApplication
);
パラメータ
- dwFlags
予約済み; 常に 0
guidApplication
登録を取り消すアプリケーションのＧＵＩＤ。
返り値
成功時 DP_OK、もしくはエラーが発生したので以下の値が代入される
| DPERR_INVALIDFLAGS |
| DPERR_INVALIDPARAMS
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| DPERR_UNKNOWNAPPLICATION
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もしこのメソッドがDPERR_UNKNOWNAPPLICATION
を帰すなら、そのアプリケーションの GUID
はレジストリに見つからない。もしくは未登録のＧＵＩＤである。
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WaitForConnectionSettings 構文
HRESULT WaitForConnectionSettings(
DWORD dwFlags);
パラメータ
- dwFlags
- Flag that puts the application into wait mode or takes it
out of wait mode. By default (dwFlags = 0), the method puts the application into
wait mode. Setting dwFlags to DPLWAIT_CANCEL takes the application out of wait
mode. As soon as the connection settings are sent by the lobby client, the application
will automatically be taken out of wait mode.
返り値
成功時 DP_OK、もしくはエラーが発生したので以下の値が代入される
| DPERR_INVALIDFLAGS |
| DPERR_UNAVAILABLE |
The method returns
DPERR_UNAVAILABLE if you set the flag to cancel wait mode and the application is not in
wait mode.
Remarks
NECTIONSETTINGS system message. The application can then
read the connection settings with GetConnectionSettings and join a session using
ConnectExWhen the lobby client uses RunApplication, DirectPlay will look for any instances
of the application that are waiting for connection settings. If none are found, then a new
instance of the application is launched. If a waiting application is found, DirectPlay
will send a DPLSYS_NEWCON.
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