C# 读本地INI文件方法

        [DllImport("kernel32")]//加载dll
        private static extern int GetPrivateProfileString(string section,
           string key, string def, StringBuilder retVal,
           int size, string filePath); //StringBuilder 可以返回值？想 Delphi var？
//自己封装一下
        private static string ReadINIfile(string iniFileName, string sectionName, string keyName, string pDefault)
        {
            StringBuilder keyValue = new StringBuilder(255);
            int i = GetPrivateProfileString(sectionName, keyName, pDefault, keyValue, 255, iniFileName);
            return (keyValue.ToString().Trim());
        }

 // intfile为ini路径
               m_Path = ReadINIfile(intfile, "driverpath", "path", "");
                if (m_Path == "")
                {
                    Verbose("ERROR: Invalid Path.");
                    return false;
                }