MagTek DynaPro Mini Programmer's99875629 - Manual (Page 100)

Appendix H - User-Defined Messages
DynaPro Mini| PIN Encryption Device | Programmer’s Reference (Commands)
Page 100
~~~
MemoryStream ms = new MemoryStream();
ms.WriteByte(4); // # of strings
addUserString(ms, 19, 56, 0x25, 0, "$20");
addUserString(ms, 64, 56, 0x25, 0, "$40");
addUserString(ms, 112, 56, 0x25, 0, "$100");
addUserString(ms, 64, 30, 0x15, 0, "Select Cashback");
pp.SendMultiData(6, ms.ToArray()); //6 for getsel, 7 for disp
pp.GetResponse(30, ResponseMsg.UserMsg, KeyMask.Left | KeyMask.Right |
KeyMask.Middle, 0);
~~~