Click-to-Call-Tray/IniConfig.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace Click_to_Call_Tray
{
    internal static class IniConfig
    {
        // Hotkey settings
        private const string IniSection = "Settings";
        private const string IniKey = "Hotkey";
        private const string DefaultHotkey = "F11"; // Default key name

        // Full path to the INI file, placed next to the executable
        private static readonly string IniFilePath = Path.Combine(
            Path.GetDirectoryName(Application.ExecutablePath), "Click-to-Call-Tray.ini");

        // P/Invoke for INI file reading
        [DllImport("kernel32", CharSet = CharSet.Unicode)]
        private static extern int GetPrivateProfileString(
            string lpAppName,
            string lpKeyName,
            string lpDefault,
            StringBuilder lpReturnedString,
            int nSize,
            string lpFileName);

        // P/Invoke for INI file writing
        [DllImport("kernel32", CharSet = CharSet.Unicode, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool WritePrivateProfileString(
            string lpAppName,
            string lpKeyName,
            string lpString,
            string lpFileName);

        // Reads the current hotkey from the INI file
        public static string ReadHotkey()
        {
            var temp = new StringBuilder(255);
            GetPrivateProfileString(IniSection, IniKey, DefaultHotkey, temp, temp.Capacity, IniFilePath);
            return temp.ToString().Trim().ToUpper();
        }

        // Writes the new hotkey to the INI file
        public static void WriteHotkey(string hotkeyName)
        {
            WritePrivateProfileString(IniSection, IniKey, hotkeyName, IniFilePath);
        }
    }

}