lr_convert_string_encoding
Converts a string to a different encoding.
Return Values：This function returns 0 on success and -1 on failure.
C Language
int lr_convert_string_encoding( const char *sourceString， const char *fromEncoding， const char *toEncoding， const char *paramName);
sourceString The string to convert
fromEncoding The encoding of the sourceString
toEncoding The encoding to convert of the string saved in parameter paramName
paramName The name of the parameter in which the destination string will be saved
lr_convert_string_encoding converts a string encoding between the following encodings: System locale， Unicode， and UTF-8. The function saves the result string， including its terminating NULL， in the parameter paramName.
Printable characters in the result string are displayed in VuGen and its logs as the actual characters. Non-printable characters are displayed in Hexadecimal. For example:
rc = lr_convert_string_encoding("A"， NULL， LR_ENC_UTF8， "stringInUnicode");
The result string displays as Ax00， and not x41x00， because the letter A is a printable character.
Add lr_convert_string_encoding manually to a script when needed. It is not recorded.
Possible values for 'fromEncoding' and 'toEncoding' :
Constant Value
LR_ENC_SYSTEM_LOCALE NULL
LR_ENC_UTF8 "utf-8"
LR_ENC_UNICODE "ucs-2"
rc = lr_convert_string_encoding(lr_eval_string("{buy_result}")， LR_ENC_UTF8， LR_ENC_SYSTEM_LOCALE， "stringInUnicode");
　　1.rc是返回值，为0表示转换成功，为-1表示失败
　　2.lr_eval_string("{buy_result}")待转换的字符
　　3.LR_ENC_UTF8待转换字符的初始编码格式
　　4.LR_ENC_SYSTEM_LOCALE需要把待转换字符转换成的格式，一般是转换为本地的默认格式
　　5."stringInUnicode"存储转换后字符串的变量名称。