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In my application I read a string in from a .txt file. The string consist of 8 groups of 2 digits representing hex codes. Like: 0112010208020211. I need to convert this in to hex numbers 01 12 01 02 08 02 02 11 so that I can attach a header and calculate a check sum. When I load 0112010208020211 into a string control set for hex display I get 3031 3132 3031 3032 3038 3032 3032 3131, which is ok because I can add my header and calculate the check sum in this form but how do I get it back to 01 12 01 02 08 02 02 11 form to send to the device under test?