如何访问局域网上的文件

var
NetSource : TNetResource; file://连 接服务器结构
dwResult:DWORD; file://连 接文件服务器的返回值

procedure ConnectServer;
begin
g_bFlag:=True;
NetSource.dwType:= RESOURCETYPE_ANY;
NetSource.lpLocalName:='';
NetSource.lpRemoteName:=PAnsiChar('\'+g_sServerIp);
NetSource.lpProvider:='';
dwResult:=WnetAddConnection2(NetSource,PAnsiChar(g_sServerPassWord),PAnsiChar(g_sServerUserName),CONNECT_UPDATE_PROFILE);
if dwResult<>0 then
begin
MessageDlg('连接文件服务器失败!'#13#10'请重新设置!',mtWarning,[mbOk],0);
g_bFlag:=False;
end;
end;

procedure DisconnectServer;
begin
if g_bFlag then
WNetCancelConnection2(PAnsiChar('\'+g_sServerIp), CONNECT_UPDATE_PROFILE, True);
end;