If a return code from any other operation is "0" or "1", a call to C$XML has failed. To retrieve error information, call the CXML-GET-LAST-ERROR op-code. For example:
77 errors-storage PIC x(60). 77 errors-value PIC x(70). . . . CALL "C$XML" using CXML-GET-LAST-ERROR error-storage. move "Err No:" to error-value(1:). move return-code to errors-value(9:). move errors-storage to errors-value(20:). display message " " errors-value.
General Syntax and Library List lists all of the error codes that can be returned by this library routine.