字符集转换（Character set conversion）.docVIP

字符集转换（Character set conversion） Unicode and character set functions Recently my Unicode has been engaged in a while ago and wanted to see MSDN it scorched by the flames! English looks really hard, in order to save time, translation summary, for future reference. English level is limited. If there is any discrepancy, please refer to MSDN. The first is the wide character to multi byte character conversion function, and the function prototype is as follows: Int WideCharToMultiByte (... UINT CodePage, DWORD dwFlags, LPCWSTR lpWideCharStr, Int cchWideChar, LPSTR lpMultiByteStr, Int cbMultiByte, LPCSTR lpDefaultChar, LPBOOL lpUsedDefaultChar ); This function converts a wide string to a specified new string, such as ANSI, UTF8, etc., and the new string does not have to be a multi byte character set. Parameter: CodePage: Specifies the character set code page to be converted to. It can be any set of characters already installed or brought with the system. You can also use one of the code pages as shown below. CP_ACP current system ANSI code page CP_MACCP current system Macintosh code page CP_OEMCP the current system OEM code page, a hardware scan code for the original device manufacturer CP_SYMBOL Symbol code page for Windows 2000 and later, I dont understand what it is CP_THREAD_ACP the current thread ANSI code page for Windows 2000 and later. I dont understand what it is CP_UTF7 UTF-7, when setting this value, both lpDefaultChar and lpUsedDefaultChar must be NULL CP_UTF8 UTF-8, when setting this value, both lpDefaultChar and lpUsedDefaultChar must be NULL I think the most common should be CP_ACP and CP_UTF8. The former converts wide characters to ANSI, and the latter to UTF8. DwFlags: specifies how to handle characters without conversion, but without this argument, the function will run faster, and Ill set it to 0. The set values are shown in the following table: WC_NO_BEST_FIT_CHARS converts Unicode characters that cannot be directly converted into corresponding multi byt