0x1000 OFFSET
     1 DTM_GETSYSTEMTIME
     2 DTM_SETSYSTEMTIME
     3 DTM_GETRANGE
     4 DTM_SETRANGE
     5 DTM_SETFORMAT
     6 DTM_SETMCCOLOR
     7 DTM_GETMCCOLOR
     8 DTM_GETMONTHCAL
     9 DTM_SETMCFONT
    10 DTM_GETMCFONT
    50 DTM_SETFORMATW
