This function modifies the instructions for a print job.
#define INCL_SPL /* Or use INCL_PM, */
#include <os2.h>
PSZ pszComputerName; /* Name of computer where job is to be modified. */
PSZ pszQueueName; /* Queue Name. */
ULONG ulJob; /* Job identification number. */
ULONG ulLevel; /* Level of detail required. */
PVOID pBuf; /* Buffer. */
ULONG cbBuf; /* Size, in bytes, of Buffer. */
ULONG ulParmNum; /* Parameter number. */
SPLERR rc; /* Return code. */
rc = SplSetJob(pszComputerName, pszQueueName,
ulJob, ulLevel, pBuf, cbBuf, ulParmNum);