This instance method is called to allow the object to restore its binary instance data.
#define INCL_WINWORKPLACE
#include <os2.h>
WPObject *somSelf; /* Pointer to the object on which the method is being invoked. */
PSZ pszClass; /* Pointer to the class name. */
ULONG ulKey; /* Class-defined identifier. */
PBYTE pValue; /* Address of the data to be restored. */
PULONG pcbValue; /* Size of the data block to be restored. */
BOOL rc; /* Success indicator. */
rc = _wpRestoreData(somSelf, pszClass, ulKey,
pValue, pcbValue);