DDCMD_SETUP - Example Code

The following code illustrates how to perform device-specific stream instance setup.

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

   ULONG           ulRC;                    /* Error return code     */
   HSTREAM         hstream;                 /* Stream handle         */
   DDCMDSETUP      ddcmdpb;                 /* Parameter block       */
   PDDCMDFN        pddcmdfn;                /* Pointer to DDCMD entry*/
                                            /* point                 */
   ULONG           ulStreamTime             /* Stream time           */
   PVOID           pBuffer;                 /* Pointer to buffer     */

                             .
                             .
                             .
 /*------------------------------------------------------------------*/
 /*Activate a stream instance in a physical device driver (Switch    */
 /*                                                         context) */
 /*------------------------------------------------------------------*/
   ddcmdpb.ulFunction = DDCMD_SETUP;
   ddcmdpb.hstream = hstream;
   ddcmdpb.pSetupParm = &ulStreamTime;    /* Setting stream time */
   ddcmdpbp.ulSetupParmSize = sizeof(ulStreamTime);

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