public Guid RegisterMouseHook(MouseHookCallback callback)
{
var hookId = default(Guid);
var hookReadyEvent = new AutoResetEvent(false);
var hookThread = new Thread(() =>
{
var hook = new MouseHook(callback);
var sleepEvent = new AutoResetEvent(false);
hook.Attach();
hookId = hook.Id;
MouseHooks[hookId] = hook;
hookReadyEvent.Set();
while (true)
{
sleepEvent.WaitOne();
}
});
hookThread.SetApartmentState(ApartmentState.STA);
hookThread.IsBackground = true;
hookThread.Start();
hookReadyEvent.WaitOne();
return(hookId);
}
public IdleNotifier(ISyncContext syncContext, IAppSettingsService settingsService)
{
this.syncContext = syncContext;
this.settingsService = settingsService;
keyboardHookCallback = new KeyboardHookCallback(KeyboardHookProc);
mouseHookCallback = new MouseHookCallback(MouseHookProc);
idleTimer = new Timer(CheckIdleState, null, TIMER_DELAY, TIMER_PERIOD);
}
public Form1()
{
InitializeComponent();
// SetWindowsHookExに渡すコールバックメソッドをフィールドで保持しておく
// フィールドで保持しておかないとガベージコレクション関係のエラーが発生する
_keyboardHookCallback = KeyCallback;
_mouseHookCallback = MouseCallback;
var hInstance = Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]);
// SetWindowsHookExでフックを開始します。戻り値はフック解除に必要なのでフィールドで保持しておきます。
// キーボードフック開始
_keyboardHookHandle = Native.SetWindowsHookEx(Native.WH_KEYBOARD_LL, _keyboardHookCallback, hInstance, 0);
// マウスフック開始
_mouseHookHandle = Native.SetWindowsHookEx(Native.WH_MOUSE_LL, _mouseHookCallback, hInstance, 0);
}
public static extern System.IntPtr SetWindowsHookEx(int idHook, MouseHookCallback lpfn, System.IntPtr hMod, uint dwThreadId);
internal MouseHook(MouseHookCallback callback)
{
this.callback = callback;
this.Id = Guid.NewGuid();
}
/// <summary>
/// フック処理をおこないます。
/// </summary>
/// <param name="nCode">ウィンドウメッセージなどを受け取ります。</param>
/// <param name="wParam">パラメータを受け取ります。</param>
/// <param name="lParam">パラメータを受け取ります。</param>
/// <returns>CallNextHookEx 関数の戻り値を返します。</returns>
private IntPtr HookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0)
{
MouseHookCallback h = null;
switch ((User32.WMs)wParam)
{
case User32.WMs.WM_MOUSEMOVE:
h = this.MouseMove;
break;
case User32.WMs.WM_LBUTTONDOWN:
if (this._hasLeftButtonDown)
{
if ((uint)this._timer.MilliSeconds <= GetDoubleClickTime())
{
h = this.DoubleClick;
this._hasLeftButtonDown = false;
}
else
{
h = this.MouseLeftButtonDown;
}
}
else
{
h = this.MouseLeftButtonDown;
this._hasLeftButtonDown = true;
}
this._timer.Start();
break;
case User32.WMs.WM_LBUTTONUP:
h = this.MouseLeftButtonUp;
break;
case User32.WMs.WM_LBUTTONDBLCLK:
h = this.DoubleClick;
break;
case User32.WMs.WM_RBUTTONDOWN:
h = this.MouseRightButtonDown;
break;
case User32.WMs.WM_RBUTTONUP:
h = this.MouseRightButtonUp;
break;
case User32.WMs.WM_MBUTTONDOWN:
h = this.MouseMiddleButtonDown;
break;
case User32.WMs.WM_MBUTTONUP:
h = this.MouseMiddleButtonUp;
break;
case User32.WMs.WM_MOUSEWHEEL:
h = this.MouseWheel;
break;
}
if (h != null)
{
h((MSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(MSLLHOOKSTRUCT)));
}
}
return(CallNextHookEx(this._hookID, nCode, wParam, lParam));
}
private static extern IntPtr SetWindowsHookEx(int idHook, MouseHookCallback lpfn, IntPtr hInstance, uint dwThreadId);
public static extern bool SetMouseHook(MouseHookCallback callback);