KSOAP receiving image as byte array

[achor elm]

I am beginner in J2ME. I use ksoap, I want to receive an image as byte array. I cant understood like one the SoapPrimitive used. you could help me to write the SOURCE code
thank you
Excuse me for my English

SoapObject client = new SoapObject(url,"testimage");

HttpTransport ht = new HttpTransport(url,"testimage");

ClassMap classMap = new ClassMap (true);
ht.setClassMap (classMap);
imageString = new SoapPrimitive
(Soap.ENC, "base64", Base64.decode());

byte [] a = new byte[l024];
a = Base64.decode(imageString);
THANKS THANKS