DDCMD_DEREG_STREAM - Example Code

The following code illustrates the stream handler requesting the stream to be de-registered.

#include        "os2.h"
#include        "os2me.h"
#include        "shdd.h"

  ULONG           ulRC;                    /* Error return code      */
  HSTREAM         hstream;                 /* Stream handle          */
  DDCMDDEREGISTER ddcmdpb;                 /* Parameter block        */
  PDDCMDFN        pddcmdfn;                /* Pointer to DDCMD entry */
                                           /* point                  */
                            .
                            .
                            .
/*-------------------------------------------------------------------*/
/*   The stream handler deregisters with the physical device driver. */
/*-------------------------------------------------------------------*/
  ddcmdpb.ulFunction = DDCMD_DEREG_STREAM;
  ddcmdpb.hstream = hstream;

  if (ulRC = pddcmdfn (&ddcmdpb))
    return (ulRC);    /* error! */