메크로를 사용하는 방법

USES_CONVERSION; // Unicode 를 Ascii 로 변환 하고자 할 경우W2A(LPWSTR), T2A(LPWSTR) // Ascii 를 Unicode로 변경하고자 하는경우A2W(LPSTR), A2T(LPSTR) // MSDN 의 예제 //Example 1 // Convert LPCWSTR to LPCSTR. void ExampleFunctionW( LPCWSTR pszW ) {     // Create an instance of CW2A, called pszA,     // and initialize it with pszW.     CW2A pszA( pszW );     // pszA works like an LPCSTR, and can be used thus:     ExampleFunctionA( pszA );     // Note: pszA will become invalid when it goes out of scope. } // Example 2 // Use a temporary instance of CW2A. void ExampleFunctionW( LPCWSTR pszW ) {     // Create a temporary instance of CW2A,     // and initialize it with pszW.     ExampleFunctionA( CW2A( pszW ) );     // Note: the temporary instance becomes invalid     // after the execution of the statement above. } // Example 3 // Incorrect use of conversion macros. void ExampleFunctionW( LPCWSTR pszW ) {     // Create a temporary instance of CW2A,     // save a pointer to it and then delete     // the temportary instance.     LPCSTR pszA = CW2A( pszW );     // The pszA in the following line is an invalid pointer,     // as the instance of CW2A has gone out of scope.     ExampleFunctionA( pszA ); }


API를 사용하는 방법

// Ascii 를 Unicode 로 변환할 경우 int MultiByteToWideChar(     UINT CodePage,     DWORD dwFlags,     LPCSTR lpMultiByteStr,     int cbMultiByte,     LPWSTR lpWideCharStr,       int cchWideChar   ); // Unicode를 Ascii 로 변환할 경우 int WideCharToMultiByte(     UINT CodePage,     DWORD dwFlags,     LPCWSTR lpWideCharStr,     int cchWideChar,     LPSTR lpMultiByteStr,     int cbMultiByte,     LPCSTR lpDefaultChar,       LPBOOL lpUsedDefaultChar );


사용방법

// Ascii 를 Unicode 로 변환할 경우 char szSource[1024] = "Sample Ascii string"; WCHAR wszBuf[1024]; int nBufSize = 1024; MultiByteToWideChar( CP_ACP, 0, szSource, -1, wszBuf, nBufSize); // Unicode를 Ascii 로 변환할 경우 WCHAR wszSource[1024] = _T("Sample Unicode string"); char szDest[1024]; int nBufSize = 1024; WideCharToMultiByte( CP_ACP, 0, wszSource, -1, szDest, nBufSize, NULL, NULL );