pszName (PSZ) - input
The name is an ASCIIZ string in the format of an OS/2 file name, and is in the subdirectory, \SHAREMEM\; for example, \SHAREMEM\PUBLIC.DAT.
To allocate unnamed shared memory, set this parameter to NULL. If you want to use unnamed shared memory, the flag parameter must include either OBJ_GETTABLE or OBJ_GIVEABLE.