gistfile1.cs

public class IniFile
{
    public string Path;
 
    [DllImport("kernel32")]
    private static extern long WritePrivateProfileString(
        string section, string key, string val, string filePath);
 
    [DllImport("kernel32")]
    private static extern int GetPrivateProfileString(
        string section,string key, string def, StringBuilder retVal, int size, string filePath);
 
    public IniFile(string iniPath)
    {
        Path = iniPath;
    }
        
    public void WriteValue(string section, string key, string value)
    {
        WritePrivateProfileString(section, key, value, Path);
    }
 
        
    public string ReadValue(string section, string key)
    {
        var sb = new StringBuilder(255);
        int i = GetPrivateProfileString(section, key, "", sb, 255, Path);
        return sb.ToString();
    }
}