SoFunction
Updated on 2025-03-07

C# implements the sharing of ini file reading and writing classes


/// <summary>
/// Class that reads and writes INI files.
    /// </summary>
    public class INIHelper
    {
//Related to read and write INI files.
        [DllImport("", EntryPoint = "WritePrivateProfileString", CharSet = )]
        public static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
        [DllImport("", EntryPoint = "GetPrivateProfileString", CharSet = )]
        public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);

        [DllImport("", EntryPoint = "GetPrivateProfileSectionNames", CharSet = )]
        public static extern int GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, int nSize, string filePath);

        [DllImport(" ", EntryPoint = "GetPrivateProfileSection", CharSet = )]
        public static extern int GetPrivateProfileSection(string lpAppName, byte[] lpReturnedString, int nSize, string filePath);


        /// <summary>
/// Write data to INI.
        /// </summary>
/// <PARAM name="Section">Node name. </PARAM>
/// <PARAM name="Key">key name. </PARAM>
/// <PARAM name="Value">value name. </PARAM>
        public static void Write(string Section, string Key, string Value, string path)
        {
            WritePrivateProfileString(Section, Key, Value, path);
        }


        /// <summary>
/// Read INI data.
        /// </summary>
/// <PARAM name="Section">Node name. </PARAM>
/// <PARAM name="Key">key name. </PARAM>
/// <PARAM name="Path">value name. </PARAM>
/// <returns>corresponding value. </returns>
        public static string Read(string Section, string Key, string path)
        {
            StringBuilder temp = new StringBuilder(255);
            int i = GetPrivateProfileString(Section, Key, "", temp, 255, path);
            return ();
        }

        /// <summary>
/// Read all sections in an ini
        /// </summary>
        /// <param name="sections"></param>
        /// <param name="path"></param>
        /// <returns></returns>
        public static int GetAllSectionNames(out string[] sections, string path)
        {
            int MAX_BUFFER = 32767;
            IntPtr pReturnedString = (MAX_BUFFER);
            int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);
            if (bytesReturned == 0)
            {
                sections = null;
                return -1;
            }
            string local = (pReturnedString, (int)bytesReturned).ToString();
            (pReturnedString);
            //use of Substring below removes terminating null for split
            sections = (0, - 1).Split('\0');
            return 0;
        }

        /// <summary>
/// Get all the key and value combinations under a certain node
        /// </summary>
        /// <param name="section"></param>
        /// <param name="keys"></param>
        /// <param name="values"></param>
        /// <param name="path"></param>
        /// <returns></returns>
        public static int GetAllKeyValues(string section, out string[] keys, out string[] values, string path)
        {
            byte[] b = new byte[65535];

            GetPrivateProfileSection(section, b, , path);
            string s = (b);
            string[] tmp = ((char)0);
            ArrayList result = new ArrayList();
            foreach (string r in tmp)
            {
                if (r != )
                    (r);
            }
            keys = new string[];
            values = new string[];
            for (int i = 0; i < ; i++)
            {
                string[] item = result[i].ToString().Split(new char[] { '=' });
                if ( == 2)
                {
                    keys[i] = item[0].Trim();
                    values[i] = item[1].Trim();
                }
                else if ( == 1)
                {
                    keys[i] = item[0].Trim();
                    values[i] = "";
                }
                else if ( == 0)
                {
                    keys[i] = "";
                    values[i] = "";
                }
            }

            return 0;
        }

    }