2024-05-27 C#: INI File Access

.NET framework that can read/write standard .ini files
https://stackoverflow.com/questions/217902/reading-writing-an-ini-file

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Class Definr

        
          
          
              
              using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
 
// Change this to match your program's normal namespace
namespace MyProg
{
    class IniFile   // revision 11
    {
        string Path;
        string EXE = Assembly.GetExecutingAssembly().GetName().Name;
 
        [DllImport("kernel32", CharSet = CharSet.Unicode)]
        static extern long WritePrivateProfileString(string Section, string Key, string Value, string FilePath);
 
        [DllImport("kernel32", CharSet = CharSet.Unicode)]
        static extern int GetPrivateProfileString(string Section, string Key, string Default, StringBuilder RetVal, int Size, string FilePath);
 
        public IniFile(string IniPath = null)
        {
            Path = new FileInfo(IniPath ?? EXE + ".ini").FullName;
        }
 
        public string Read(string Key, string Section = null)
        {
            var RetVal = new StringBuilder(255);
            GetPrivateProfileString(Section ?? EXE, Key, "", RetVal, 255, Path);
            return RetVal.ToString();
        }
 
        public void Write(string Key, string Value, string Section = null)
        {
            WritePrivateProfileString(Section ?? EXE, Key, Value, Path);
        }
 
        public void DeleteKey(string Key, string Section = null)
        {
            Write(Key, null, Section ?? EXE);
        }
 
        public void DeleteSection(string Section = null)
        {
            Write(null, null, Section ?? EXE);
        }
 
        public bool KeyExists(string Key, string Section = null)
        {
            return Read(Key, Section).Length > 0;
        }
    }
}

            

        
      

Open the INI file in one of the 3 following ways:

        
              // Creates or loads an INI file in the same directory as your executable
// named EXE.ini (where EXE is the name of your executable)
var MyIni = new IniFile();
 
// Or specify a specific name in the current dir
var MyIni = new IniFile("Settings.ini");
 
// Or specify a specific name in a specific dir
var MyIni = new IniFile(@"C:\Settings.ini");

write some values like so:

1 2	`MyIni.Write("DefaultVolume", "100");` `MyIni.Write("HomePage", "http://www.google.com");`

To create a file like this:
- 1
  2
  3
  
  [MyProg]
  DefaultVolume=100
  HomePage=http://www.google.com

To read the values out of the INI file:

        
              var DefaultVolume = MyIni.Read("DefaultVolume");
var HomePage = MyIni.Read("HomePage");

Optionally, you can set [Section]'s:

1 2	`MyIni.Write("DefaultVolume", "100", "Audio");` `MyIni.Write("HomePage", "http://www.google.com", "Web");`

To create a file like this:
- 1
  2
  3
  4
  5
  
  [Audio]
  DefaultVolume=100
  
  [Web]
  HomePage=http://www.google.com

You can also check for the existence of a key like so:

        
              if(!MyIni.KeyExists("DefaultVolume", "Audio"))
{
    MyIni.Write("DefaultVolume", "100", "Audio");
}

You can delete a key like so:
- 1
  
  MyIni.DeleteKey("DefaultVolume", "Audio");
You can also delete a whole section (including all keys) like so:
- 1
  
  MyIni.DeleteSection("Web");

2024-05-27 C#: INI File Access

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