HRESULT GetGroupData(DPID idGroup,
LPVOID lpData, LPDWORD lpdwDataSize,
DWORD dwFlags);
Retrieves an application-specific data block that was associated with a group ID by using IDirectPlay2::SetGroupData.
·Returns DP_OK if successful, or one of the following error values otherwise:
idGroup
Group ID for which data is being requested.
lpData
Address of a buffer where the application-specific group data is to be written. Set this parameter to NULL to request only the size of data. The lpdwDataSize parameter will be set to the size required to hold the data.
lpdwDataSize
Address of a variable that is initialized to the size of the buffer before calling the method. After the method returns, this parameter will be set to the size, in bytes, of the group data. If the buffer was too small (DPERR_BUFFERTOOSMALL), then this parameter will be set to the buffer size required.
dwFlags
If this parameter is set to 0, the remote data will be retrieved.
Retrieves the current data from the remote shared data space.
Retrieves the local data set by this application
DirectPlay can maintain two types of group data: local and remote. The application must specify which type of data to retreive. Local data was set by this DirectPlay object by using the DPSET_LOCAL flag. Remote data might have been set by any application in the session by using the DPSET_REMOTE flag.