SMHEntryPoint - Example Code

The following code illustrates how to enable DLL and device driver stream handlers to interface with the Sync/Stream Manager.

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

  ULONG         ulRC;               /* Error return code           */
  PARM_LOCKM    parm_lockm;   /* Lock memory parameter block */
  LOCKH         lockh;              /* Lock handle                 */
  PVOID         pMem;               /* Pointer to memory object    */
  PSMHFN        SMHEntryPoint;      /* Pointer to SMH entry point  */

                            .
                            .
                            .
/*--------------------------------------------
 *  Allocate memory and save address in pMem.
 *--------------------------------------------
                            .
                            .
                            .

 *-------------------------------------------
 *  Lock the allocated memory.
 *-------------------------------------------*/
  parm_lockm.ulFunction = SMH_LOCKMEM;
  parm_lockm.pBuffer = pMem;
  parm_lockm.ulBufSize = 4096;
  parm_lockm.plockh = &lockh;
  parm_lockm.ulFlags = SSM_LOCKMEM | SSM_CONTIGLOCK;

  if (ulRC = SMHEntryPoint (&parm_lockm))
     return(ulRC);                             /* Error! */