code:
#define MAKEINTRESOURCEW
 ((LPWSTR)((ULONG_PTR)((WORD)
)))
#define TD_WARNING_ICON         MAKEINTRESOURCEW(-1)
#define TD_ERROR_ICON           MAKEINTRESOURCEW(-2)
#define TD_INFORMATION_ICON     MAKEINTRESOURCEW(-3)
#define TD_SHIELD_ICON          MAKEINTRESOURCEW(-4)
TD_QUESTION_ICON is not in the SDK headers I'm afraid. It seems Microsoft recommend against its use.