Assigning Binary Data From Network To Variables

FROM : Bridger Maxwell
DATE : Sat Jan 05 08:27:41 2008

Hello,
  I am very new to Cocoa, so I apologize if this question seems very basic.
Right now I am trying to read data from a program that is sending data in
the "TUIO" protocol.  I have read the data from the socket, and assigned it
to a NSData object with this code:
    NSData *messageData = [[notification userInfo]
                        objectForKey:NSFileHandleNotificationDataItem];
Now how do I translate that data to integer and float values?  I have sample
code from C++ and Java, but I don't know how to translate them to Cocoa.  In
Java, it looks like this:
        Object[] args = message.getArguments();
        String command = (String)args[0];
        String address = message.getAddress();

        int s_id  = ((Integer)args[1]).intValue();
        int f_id  = ((Integer)args[2]).intValue();
        float x = ((Float)args[3]).floatValue();
        float y = ((Float)args[4]).floatValue();

In C++ it looks like this:
        ReceivedMessageArgumentStream args = msg.ArgumentStream();
        ReceivedMessage::const_iterator arg = msg.ArgumentsBegin();
                int32 s_id, f_id;
                float xpos, ypos, angle, xspeed, yspeed, rspeed, maccel,
raccel;

                args >> s_id >> f_id >> xpos >> ypos >> angle >> xspeed >>
yspeed >> rspeed >> maccel >> raccel >> EndMessage;


I would also be happy on a hint on what framework to use to do something
like this, but right now I am not even sure where to start looking.

  Thank You,
    Bridger Maxwell