Thank you for the quick reply PVT784. I have tried doing the decimal codes like you referred to in the first suggestion with no success. When I type them, I get characters like ↔▲♦ and those are not control characters. I appreciate the second link but I don't know how the discussion there would apply.

Everything I type and send via the API is coming over literally character for character and I am hoping there's possibly a sequence of characters, when typed, translate into those control characters.

I read on a Zebra forum that in Zebra software (not API) you can use things like or and the software translates those into the control characters, but when I try it with the API, it reads back literally as or instead of using the control characters. It would be great if there was already something built into the API when sent over would translate.

As suggested by PVT784, it looks like you need to create a string buffer and fill in with the corresponding hex values of the control characters in the ASCII at the desired positions in the buffer, and then pass the content of the string buffer to the API call. For example, the Group Separator (GS) is the 0x1D in hex on the ASCII table, which cannot be typed in as a readable character. Programmatically, however, the 0x1D can be inserted at the desired position in the string buffer and the content of the string buffer can be sent with the barcode generator API call.