StringCchLength?strlen, wcslen, ? _tcslen

HRESULT StringCchLength( __in LPCTSTR psz, __in size_t cchMax, __out size_t *pcch);

psz: [in] ?

cchMax: [in] ?pszSTRSAFE_MAX_CCH?

pcch: [out] NULL?psz?

S_OK?STRSAFE_E_INVALID_PARAMETER ?StringCchLength?HRESULT?

StringCchLengthStringCchLength(CHARTEXT("string"))?StringCchLengthW("string")?

Windows XP SP2?Windows Server 2003 SP1?Strsafe.h?Unicode ?ANSI?StringCchLengthW?StringCchLengthA?