Normally, if you change a display file field from input/output to output only, your input buffer will change and you will need to recompile your program.
A quick way to change fields to disallow input is to add the attribute DSPATR(PR) to the input/output field. This attribute prohibits users from keying into the field, but it does not change the input buffer; therefore the program does not have to be recompiled.
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