How compress wide character filenames correctly in minizip [closed]

So i was trying to compress a zip file which contains japanese characters filenames in cpp with minizip library, but no matter what i do it does not seem to work and i see a random set of characters instead when open it via WinRAR or 7-zip.

I tried to convert std::wstring file paths to utf8 std::string

I tried to to find tutorials that can handle it.

Note:i am using std::wstring for paths and filenames.

#include ...#include "UniCoder.h" //to import ConvertWideToUtf8(std::wstring);using namespace std;bool zipper_add_dir(zipFile zfile, wstring wdirname) {    size_t  len;    string dirname = ConvertWideToUtf8(wdirname);//is the problem here?    int ret;    if (zfile == NULL || wdirname.c_str() == NULL || *wdirname.c_str() == '\0')        return false;    ret = zipOpenNewFileInZip(zfile, wdirname.c_str(), NULL, NULL, 0, NULL, 0, NULL, 0, 0);//or here?    if (ret != ZIP_OK)        return false;    zipCloseFileInZip(zfile);    return ret == ZIP_OK ? true : false;}int CreateZipFile(vector<wstring> paths, wstring originPath, wstring wdestinationPath) {    zlib_filefunc_def ffunc;    string destinationPath = ConvertWideToUtf8(wdestinationPath);    zipFile zf = zipOpen(destinationPath.c_str(), APPEND_STATUS_CREATE);    if (zf == NULL)        return 1;    bool _return = true;    for (size_t i = 0; i < paths.size(); i++) {        fstream file(paths[i].c_str(), ios::binary | ios::in);        if (file.is_open()) {            file.seekg(0, ios::end);            long size = file.tellg();            file.seekg(0, ios::beg);            vector<char> buffer(size);            if (size == 0 || file.read(&buffer[0], size)) {                zip_fileinfo zfi = { 0 };                wstring wfileName = paths[i].substr(paths[i].rfind('\\') + 1);                string fileName = ConvertWideToUtf8(wfileName);                if (Z_OK == zipOpenNewFileInZip(zf, fileName.c_str()/*or is it here*/, &zfi, NULL, 0, NULL, 0, NULL, Z_DEFLATED, Z_DEFAULT_COMPRESSION)) {                    if (zipWriteInFileInZip(zf, size == 0 ? "" : &buffer[0], size))                        _return = false;                    if (zipCloseFileInZip(zf))                        _return = false;                    file.close();                    continue;                }            }            file.close();        } else {            TCHAR fuDir[MAX_PATH];            TCHAR srDir[MAX_PATH];            TCHAR reDir[MAX_PATH];//does using TCHAR do any difference?            StringCchCopy(fuDir, MAX_PATH, paths[i].c_str());            StringCchCopy(srDir, MAX_PATH, originPath.c_str());            StringCchCat(srDir, MAX_PATH, TEXT("\\"));            int cur = 0;            ZeroMemory(reDir, MAX_PATH);            for (int j = 0; j < MAX_PATH; j++) {                if (fuDir[j] != srDir[j]) {                    reDir[cur] = fuDir[j];                    cur++;                }            }            StringCchCat(reDir, MAX_PATH, TEXT("\\"));            zipper_add_dir(zf, reDir);        }        _return = false;    }    if (zipClose(zf, NULL))        return 3;    if (!_return)        return 4;    return Z_OK;}

a file named おはも.txt when compressed i get ÒüèÒü»Òéé.txt when i set std::wstring to convert into utf8 std::string

The code for ConvertWideToUtf8:

    string ConvertWideToUtf8(const wstring& wstr) {        int count = WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), wstr.length(), NULL, 0, NULL, NULL);        string str(count, 0);        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), -1, &str[0], count, NULL, NULL);        return str;    }