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MFC Convert CString encoding between UTF-8 and UTF-16
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| static CStringA UTF16_UTF8(const CStringW& utf16) | |
| { | |
| if (utf16.IsEmpty()) return ""; | |
| CStringA utf8; | |
| int cc = 0; | |
| if ((cc = WideCharToMultiByte(CP_UTF8, 0, utf16, -1, NULL, 0, 0, 0) - 1) > 0) | |
| { | |
| char * buf = utf8.GetBuffer(cc); | |
| if (buf) WideCharToMultiByte(CP_UTF8, 0, utf16, -1, buf, cc, 0, 0); | |
| utf8.ReleaseBuffer(); | |
| } | |
| return utf8; | |
| } | |
| static CStringW UTF8_UTF16(const CStringA& utf8) | |
| { | |
| if (utf8.IsEmpty()) return L""; | |
| CStringW utf16; | |
| int cc = 0; | |
| if ((cc = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0) - 1) > 0) | |
| { | |
| wchar_t *buf = utf16.GetBuffer(cc); | |
| if (buf) MultiByteToWideChar(CP_UTF8, 0, utf8, -1, buf, cc); | |
| utf16.ReleaseBuffer(); | |
| } | |
| return utf16; | |
| } |
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There is no need to do encoding conversion, because CString uses UNICODE to represent strings internally