using System;

using System.Runtime.InteropServices;

namespace VncSharpCore

{

public static class NativeMethods

{

#region Functions

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

internal static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProcDelegate lpfn, IntPtr hMod, int dwThreadId);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

[return: MarshalAs(UnmanagedType.Bool)]

internal static extern bool UnhookWindowsHookEx(IntPtr hhk);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

internal static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, KBDLLHOOKSTRUCT lParam);

[DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]

internal static extern IntPtr GetModuleHandle(string lpModuleName);

[DllImport("user32.dll", CharSet = CharSet.Unicode, SetLastError = true)]

internal static extern uint RegisterWindowMessage(string lpString);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

[return: MarshalAs(UnmanagedType.Bool)]

internal static extern bool PostMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

[return: MarshalAs(UnmanagedType.Bool)]

internal static extern bool GetGUIThreadInfo(int idThread, GUITHREADINFO lpgui);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

internal static extern short GetAsyncKeyState(int vKey);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

[return: MarshalAs(UnmanagedType.Bool)]

internal static extern bool GetKeyboardState(byte[] lpKeyState);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

internal static extern int MapVirtualKey(int uCode, int uMapType);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

internal static extern int ToAscii(int uVirtKey, int uScanCode, byte[] lpKeyState, byte[] lpwTransKey, int fuState);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]

internal static extern IntPtr GetAncestor(IntPtr hwnd, uint gaFlags);

#endregion

#region Delegates

public delegate IntPtr LowLevelKeyboardProcDelegate(int nCode, IntPtr wParam, KBDLLHOOKSTRUCT lParam);

#endregion

#region Structures

[StructLayout(LayoutKind.Sequential)]

public class KBDLLHOOKSTRUCT

{

internal int vkCode;

internal int scanCode;

internal int flags;

internal int time;

internal IntPtr dwExtraInfo;

}

[StructLayout(LayoutKind.Sequential)]

public struct RECT

{

internal int left;

internal int top;

internal int right;

internal int bottom;

}

[StructLayout(LayoutKind.Sequential)]

public class GUITHREADINFO

{

public GUITHREADINFO()

{

cbSize = Convert.ToInt32(Marshal.SizeOf(this));

}

internal int cbSize;

internal int flags;

internal IntPtr hwndActive;

internal IntPtr hwndFocus;

internal IntPtr hwndCapture;

internal IntPtr hwndMenuOwner;

internal IntPtr hwndMoveSize;

internal IntPtr hwndCaret;

internal RECT rcCaret;

}

#endregion

#region Constants

// GetAncestor

public const int GA_ROOT = 2;

// SetWindowsHookEx

public const int WH_KEYBOARD_LL = 13;

// LowLevelKeyboardProcDelegate

public const int HC_ACTION = 0;

// SendMessage

public const int WM_KEYDOWN = 0x0100;

public const int WM_KEYUP = 0x0101;

public const int WM_SYSKEYDOWN = 0x0104;

public const int WM_SYSKEYUP = 0x0105;

// GetAsyncKeyState

public const int KEYSTATE_PRESSED = 0x8000;

#region Virtual Keys

public const int VK_CANCEL = 0x0003;

public const int VK_BACK = 0x0008;

public const int VK_TAB = 0x0009;

public const int VK_CLEAR = 0x000C;

public const int VK_RETURN = 0x000D;

public const int VK_PAUSE = 0x0013;

public const int VK_ESCAPE = 0x001B;

public const int VK_SNAPSHOT = 0x002C;

public const int VK_INSERT = 0x002D;

public const int VK_DELETE = 0x002E;

public const int VK_HOME = 0x0024;

public const int VK_END = 0x0023;

public const int VK_PRIOR = 0x0021;

public const int VK_NEXT = 0x0022;

public const int VK_LEFT = 0x0025;

public const int VK_UP = 0x0026;

public const int VK_RIGHT = 0x0027;

public const int VK_DOWN = 0x0028;

public const int VK_SELECT = 0x0029;

public const int VK_PRINT = 0x002A;

public const int VK_EXECUTE = 0x002B;

public const int VK_HELP = 0x002F;

public const int VK_LWIN = 0x005B;

public const int VK_RWIN = 0x005C;

public const int VK_APPS = 0x005D;

public const int VK_F1 = 0x0070;

public const int VK_F2 = 0x0071;

public const int VK_F3 = 0x0072;

public const int VK_F4 = 0x0073;

public const int VK_F5 = 0x0074;

public const int VK_F6 = 0x0075;

public const int VK_F7 = 0x0076;

public const int VK_F8 = 0x0077;

public const int VK_F9 = 0x0078;

public const int VK_F10 = 0x0079;

public const int VK_F11 = 0x007A;

public const int VK_F12 = 0x007B;

public const int VK_SHIFT = 0x0010;

public const int VK_LSHIFT = 0x00A0;

public const int VK_RSHIFT = 0x00A1;

public const int VK_CONTROL = 0x0011;

public const int VK_LCONTROL = 0x00A2;

public const int VK_RCONTROL = 0x00A3;

public const int VK_MENU = 0x0012;

public const int VK_LMENU = 0x00A4;

public const int VK_RMENU = 0x00A5;

public const int VK_OEM_1 = 0x00BA;

public const int VK_OEM_2 = 0x00BF;

public const int VK_OEM_3 = 0x00C0;

public const int VK_OEM_4 = 0x00DB;

public const int VK_OEM_5 = 0x00DC;

public const int VK_OEM_6 = 0x00DD;

public const int VK_OEM_7 = 0x00DE;

public const int VK_OEM_8 = 0x00DF;

public const int VK_OEM_102 = 0x00E2;

#endregion

#endregion

// ReSharper restore InconsistentNaming

}

}