SMH_LOCKMEM - Example Code

The following code illustrates how to lock a memory object.

#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! */