+ rc_uint_type conv_flags = MB_PRECOMPOSED;
+
+ /* MB_PRECOMPOSED is not allowed for UTF-7 or UTF-8.
+ MultiByteToWideChar will set the last error to
+ ERROR_INVALID_FLAGS if we do. */
+ if (cp == CP_UTF8 || cp == CP_UTF7)
+ conv_flags = 0;
+
+ ret = (rc_uint_type) MultiByteToWideChar (cp, conv_flags,