The stock market data transfer example (see “Transferring Data Contained in Property Sets,” in the Storage chapter of this Guide) might include a displayable name of “Stock Quote” for the entire set, and “Ticker Symbol” for PID_SYMBOL. If a property set contained just a symbol and the dictionary, the property set section would have a byte stream that looked like the following:
Offset Bytes
; Start of section
0000 5C 01 00 00 ; DWORD size of section
0004 04 00 00 00 ; DWORD number of properties in section
; Start of PropID/Offset pairs
0008 01 00 00 00 ; DWORD Property ID (1 == code page)
000C 28 00 00 00 ; DWORD offset to property ID
0010 00 00 00 80 ; DWORD Property ID (0x80000000 == locale
ID)
0014 30 00 00 00 ; DWORD offset to property ID
0018 00 00 00 00 ; DWORD Property ID (0 == dictionary)
001C 38 00 00 00 ; DWORD offset to property ID
0020 07 00 00 00 ; DWORD Property ID (3 == PID_SYMBOL)
0024 5C 01 00 00 ; DWORD offset to property ID
; Start of Property 1 (code page)
0028 01 00 00 00 ; DWORD type indicator (VT_12)
002C B0 04 ; USHORT codepage (0x04b0 == 1200 ==
unicode)
002E 00 00 ; Pad to 32-bit boundary
; Start of Property 0x80000000 (Local ID)
0030 13 00 00 00 ; DWORD type indicator (VT_U14)
0034 09 04 00 00 ; ULONG locale ID (0x0409 == American
English)
; Start of Property 0 (the dictionary)
0038 08 00 00 00 ; DWORD number of entries in dictionary
(Note: No type indicator)
003C 00 00 00 00 ; DWORD propid == 0 (the dictionary)
0040 0C 00 00 00 ; DWORD cch == wcslen(L”Stock Quote”) +
sizeof(L’\0’) == 12
0044 L”Stock Quote” ; wchar_t wsz(12)
005C 05 00 00 00 ; DWORD propid == 5 (PID_HIGH)
0060 0B 00 00 00 ; DWORD cch == wcslen(L”High Price”) +
sizeof(L’\0’) == 11
0064 L”High Price\0”; wchar_t wsz(11)
007A 00 00 ; padding for 32-bit alignment (necessary
because the codepage is unicode)
007C 07 00 00 00 ; DWORD propid == 7 (PID_SYMBOL)
0080 0E 00 00 00 ; DWORD cch - wcslen(L”Ticker Symbol\0”)
== 14
0084 L”Ticker Symbol\0” ; wchar_t wsz(14)
//The dictionary would continue, but may not contain entries
//for every possible property, and may contain entries for
//properties that are not present. Also, entries need not be in
//order.