ErrorId WORD dwRead DWORD
ErrorId WORD dwWrite DWORD
61850_ENUM_MMS_DataType wSize WORD Inout
ChannelHandle POINTER TO WORD pdw
_CONNTYPE_LOGICALEXCHANGEVAR WORD 152 Connector
bytes usRecvPort WORD
Area WORD The area
RemoteVarArea WORD only if b
Writes a byte, word