LowLevelAdapter.Misc.cs

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;

namespace dotSwitcher
{
    public static partial class LowLevelAdapter
    {
        #region dllimport
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr SetWindowsHookEx(int idHook, HookProc handler, IntPtr hMod, uint dwThreadId);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool UnhookWindowsHookEx(IntPtr hhk);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr GetModuleHandle(string lpModuleName);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern uint GetWindowThreadProcessId(IntPtr hWnd, IntPtr ProcessId);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr GetForegroundWindow();
        [DllImport("User32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern bool SetForegroundWindow(IntPtr hWnd);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr GetKeyboardLayout(uint WindowsThreadProcessID);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern bool PostMessage(IntPtr hhwnd, uint msg, uint wparam, uint lparam);
        [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        private static extern IntPtr LoadKeyboardLayout(string pwszKLID, uint Flags);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        private static extern short GetKeyState(int keyCode);
        [DllImport("user32.dll")]
        private static extern IntPtr GetFocus();
        [DllImport("user32.dll")]
        private static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, StringBuilder lParam);
        [DllImport("user32.dll")]
        private static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, string lParam);
        [DllImport("user32.dll")]
        static extern int SendMessage(IntPtr hWnd, uint Msg, out int wParam, out int lParam);
        [DllImport("user32.dll")]
        static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);
        [DllImport("user32.dll", SetLastError = true)]
        private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
        [DllImport("kernel32.dll")]
        private static extern uint GetCurrentThreadId();
        [DllImport("user32.dll")]
        private static extern bool AttachThreadInput(uint idAttach, uint idAttachTo, bool fAttach);
        [DllImport("user32.dll", SetLastError = true)]
        static extern UInt32 SendInput(UInt32 numberOfInputs, INPUT[] inputs, Int32 sizeOfInputStructure);
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        static extern bool GetGUIThreadInfo(uint idThread, ref GUITHREADINFO lpgui);
        [DllImport("user32.dll")]
        public static extern uint RegisterWindowMessage(string message);
        #endregion

        public static uint WM_SHOW_SETTINGS = RegisterWindowMessage("WM_SHOW_SETTINGS");
        public const int HWND_BROADCAST = 0xffff;
        public const int WH_KEYBOARD_LL = 13;
        public const int WH_MOUSE_LL = 14;
        public const int WM_KEYDOWN = 0x0100;
        public const int WM_KEYUP = 0x0100;
        public const int WM_SYSKEYDOWN = 0x0104;
        public const int WM_LBUTTONDOWN = 0x0201;
        public const int WM_RBUTTONDOWN = 0x0204;
        public const int INPUT_KEYBOARD = 1;
        public const uint KEYEVENTF_KEYUP = 0x0002;
        public const uint WM_INPUTLANGCHANGEREQUEST = 0x50;
        public const uint INPUTLANGCHANGE_FORWARD = 0x02;
        public const uint HKL_NEXT = 1;
        public const uint WM_GETTEXT = 0x0D;
        public const uint WM_GETTEXTLENGTH = 0x0E;
        public const uint EM_GETSEL = 0xB0;
        public const uint EM_SETSEL = 0xB1;
        public const uint EM_REPLACESEL = 0xC2;

        private static INPUT MakeKeyInput(Keys vkCode, bool down)
        {
            return new INPUT
            {
                Type = INPUT_KEYBOARD,
                Data = new MOUSEKEYBDHARDWAREINPUT
                {
                    Keyboard = new KEYBDINPUT
                    {
                        Vk = (UInt16)vkCode,
                        Scan = 0,
                        Flags = down ? 0 : KEYEVENTF_KEYUP,
                        Time = 0,
                        ExtraInfo = IntPtr.Zero
                    }
                }
            };
        }

    }

    public delegate IntPtr HookProc(int code, IntPtr wParam, IntPtr lParam);

    struct INPUT
    {
        public UInt32 Type;
        public MOUSEKEYBDHARDWAREINPUT Data;
    }

    [StructLayout(LayoutKind.Explicit)]
    struct MOUSEKEYBDHARDWAREINPUT
    {
        [FieldOffset(0)]
        public MOUSEINPUT Mouse;
        [FieldOffset(0)]
        public KEYBDINPUT Keyboard;
        [FieldOffset(0)]
        public HARDWAREINPUT Hardware;
    }

    #pragma warning disable 649
    struct MOUSEINPUT
    {
        public Int32 X;
        public Int32 Y;
        public UInt32 MouseData;
        public UInt32 Flags;
        public UInt32 Time;
        public IntPtr ExtraInfo;
    }

    [StructLayout(LayoutKind.Sequential)]
    struct KEYBDINPUT
    {
        public UInt16 Vk;
        public UInt16 Scan;
        public UInt32 Flags;
        public UInt32 Time;
        public IntPtr ExtraInfo;
    }

    struct HARDWAREINPUT
    {
        public UInt32 Msg;
        public UInt16 ParamL;
        public UInt16 ParamH;
    }
    #pragma warning restore 649

    public struct GUITHREADINFO
    {
        public int cbSize;
        public int flags;
        public IntPtr hwndActive;
        public IntPtr hwndFocus;
        public IntPtr hwndCapture;
        public IntPtr hwndMenuOwner;
        public IntPtr hwndMoveSize;
        public IntPtr hwndCaret;
        public System.Drawing.Rectangle rcCaret;
    }


}