public void Start(bool InstallMouseHook, bool InstallKeyboardHook)
{
if (this.hMouseHook == 0 && InstallMouseHook)
{
UserActivityHook.MouseHookProcedure = new UserActivityHook.HookProc(this.MouseHookProc);
this.hMouseHook = UserActivityHook.SetWindowsHookEx(14, UserActivityHook.MouseHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
if (this.hMouseHook == 0)
{
int errorCode = Marshal.GetLastWin32Error();
this.Stop(true, false, false);
throw new Win32Exception(errorCode);
}
}
if (this.hKeyboardHook == 0 && InstallKeyboardHook)
{
UserActivityHook.KeyboardHookProcedure = new UserActivityHook.HookProc(this.KeyboardHookProc);
this.hKeyboardHook = UserActivityHook.SetWindowsHookEx(13, UserActivityHook.KeyboardHookProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
if (this.hKeyboardHook == 0)
{
int errorCode = Marshal.GetLastWin32Error();
this.Stop(false, true, false);
throw new Win32Exception(errorCode);
}
}
}
private int MouseHookProc(int nCode, int wParam, IntPtr lParam)
{
if (nCode >= 0 && this.OnMouseActivity != null)
{
UserActivityHook.MouseLLHookStruct mouseHookStruct = (UserActivityHook.MouseLLHookStruct)Marshal.PtrToStructure(lParam, typeof(UserActivityHook.MouseLLHookStruct));
MouseButtons button = MouseButtons.None;
short mouseDelta = 0;
int num = wParam;
if (num == 513)
{
button = MouseButtons.Left;
}
else if (num == 516)
{
button = MouseButtons.Right;
}
else if (num == 522)
{
mouseDelta = (short)(mouseHookStruct.mouseData >> 16 & 65535);
}
int clickCount = 0;
if (button != MouseButtons.None)
{
clickCount = (wParam == 515 || wParam == 518 ? 2 : 1);
}
MouseEventArgs e = new MouseEventArgs(button, clickCount, mouseHookStruct.pt.x, mouseHookStruct.pt.y, mouseDelta);
this.OnMouseActivity(this, e);
}
return(UserActivityHook.CallNextHookEx(this.hMouseHook, nCode, wParam, lParam));
}
private int KeyboardHookProc(int nCode, int wParam, IntPtr lParam)
{
bool handled = false;
if (nCode >= 0 && (this.KeyDown != null || this.KeyUp != null || this.KeyPress != null))
{
UserActivityHook.KeyboardHookStruct MyKeyboardHookStruct = (UserActivityHook.KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(UserActivityHook.KeyboardHookStruct));
if (this.KeyDown != null && (wParam == 256 || wParam == 260))
{
KeyEventArgs e = new KeyEventArgs((Keys)MyKeyboardHookStruct.vkCode);
this.KeyDown(this, e);
handled = (handled ? true : e.Handled);
}
if (this.KeyPress != null && wParam == 256)
{
bool isDownShift = ((UserActivityHook.GetKeyState(16) & 128) == 128 ? true : false);
bool isDownCapslock = (UserActivityHook.GetKeyState(20) != 0 ? true : false);
byte[] keyState = new byte[256];
UserActivityHook.GetKeyboardState(keyState);
byte[] inBuffer = new byte[2];
if (UserActivityHook.ToAscii(MyKeyboardHookStruct.vkCode, MyKeyboardHookStruct.scanCode, keyState, inBuffer, MyKeyboardHookStruct.flags) == 1)
{
char key = (char)inBuffer[0];
if (isDownCapslock ^ isDownShift && char.IsLetter(key))
{
key = char.ToUpper(key);
}
KeyPressEventArgs e = new KeyPressEventArgs(key);
this.KeyPress(this, e);
handled = (handled ? true : e.Handled);
}
}
if (this.KeyUp != null && (wParam == 257 || wParam == 261))
{
KeyEventArgs e = new KeyEventArgs((Keys)MyKeyboardHookStruct.vkCode);
this.KeyUp(this, e);
handled = (handled ? true : e.Handled);
}
}
if (handled)
{
return(1);
}
return(UserActivityHook.CallNextHookEx(this.hKeyboardHook, nCode, wParam, lParam));
}
public void Stop(bool UninstallMouseHook, bool UninstallKeyboardHook, bool ThrowExceptions)
{
if (this.hMouseHook != 0 && UninstallMouseHook)
{
int retMouse = UserActivityHook.UnhookWindowsHookEx(this.hMouseHook);
this.hMouseHook = 0;
if (retMouse == 0 && ThrowExceptions)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
if (this.hKeyboardHook != 0 && UninstallKeyboardHook)
{
int retKeyboard = UserActivityHook.UnhookWindowsHookEx(this.hKeyboardHook);
this.hKeyboardHook = 0;
if (retKeyboard == 0 && ThrowExceptions)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
}
