private static IntPtr HookProc(int nCode, NativeMethods.Message wParam, ref NativeMethods.MSLLHOOKSTRUCT lParam)
{
if (nCode >= 0 && wParam != NativeMethods.Message.WM_MOUSEMOVE)
{
Stop();
if (wParam == NativeMethods.Message.WM_LBUTTONDOWN)
{
Picked?.Invoke(PickWindowTitle(lParam.pt));
return((IntPtr)1);
}
}
return(NativeMethods.CallNextHookEx(_hHook, nCode, wParam, ref lParam));
}
/// <summary>
/// フックチェーンにインストールするフックプロシージャ
/// </summary>
/// <param name="nCode">フックプロシージャに渡すフックコード</param>
/// <param name="msg">フックプロシージャに渡す値</param>
/// <param name="msllhookstruct">フックプロシージャに渡す値</param>
/// <returns>フックチェーン内の次のフックプロシージャの戻り値</returns>
private static System.IntPtr HookProcedure(int nCode, NativeMethods.Message msg, ref NativeMethods.MSLLHOOKSTRUCT s)
{
if (nCode >= 0 && HookEvent != null)
{
State.button = GetButtonState(msg, ref s);
State.posX = s.pt.x;
State.posY = s.pt.y;
State.mouseData = s.mouseData;
State.flags = s.flags;
State.time = s.time;
State.dwExtraInfo = s.dwExtraInfo;
HookEvent(ref State);
if (IsCancel)
{
IsCancel = false;
return((System.IntPtr) 1);
}
}
return(NativeMethods.CallNextHookEx(Handle, nCode, msg, ref s));
}
/// <summary>
/// 操作されたボタンを取得します。
/// </summary>
/// <param name="msg">マウスに関するウィンドウメッセージ</param>
/// <param name="s">低レベルのマウスの入力イベントの構造体</param>
/// <returns></returns>
private static ButtonType GetButtonState(NativeMethods.Message msg, ref NativeMethods.MSLLHOOKSTRUCT s)
{
switch (msg)
{
case NativeMethods.Message.WM_MOUSEMOVE:
return(ButtonType.MOVE);
case NativeMethods.Message.WM_LBUTTONDOWN:
return(ButtonType.L_DOWN);
case NativeMethods.Message.WM_LBUTTONUP:
return(ButtonType.L_UP);
case NativeMethods.Message.WM_LBUTTONDBLCLK:
return(ButtonType.UNKNOWN);
case NativeMethods.Message.WM_RBUTTONDOWN:
return(ButtonType.R_DOWN);
case NativeMethods.Message.WM_RBUTTONUP:
return(ButtonType.R_UP);
case NativeMethods.Message.WM_MBUTTONDOWN:
return(ButtonType.M_DOWN);
case NativeMethods.Message.WM_MBUTTONUP:
return(ButtonType.M_UP);
case NativeMethods.Message.WM_MOUSEWHEEL:
return(((short)((s.mouseData >> 16) & 0xffff) > 0) ? ButtonType.W_UP : ButtonType.W_DOWN);
case NativeMethods.Message.WM_XBUTTONDOWN:
switch (s.mouseData >> 16)
{
case 1:
return(ButtonType.X1_DOWN);
case 2:
return(ButtonType.X2_DOWN);
default:
return(ButtonType.UNKNOWN);
}
case NativeMethods.Message.WM_XBUTTONUP:
switch (s.mouseData >> 16)
{
case 1:
return(ButtonType.X1_UP);
case 2:
return(ButtonType.X2_UP);
default:
return(ButtonType.UNKNOWN);
}
default:
return(ButtonType.UNKNOWN);
}
}
/// <summary>
/// Occurs when the callback is received for an event.
/// </summary>
/// <param name="nCode">The hook code.</param>
/// <param name="wParam">A parameter containing event data.</param>
/// <param name="lParam">A parameter containing event data.</param>
/// <returns><b>true</b> if the event was handled, otherwise <b>false</b>.</returns>
protected override bool OnCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
bool handled = false;
////Debug.WriteLine("MouseHook::OnCallback - {0}:{1}:{2}", nCode, wParam, lParam);
switch (nCode)
{
case NativeMethods.HC_ACTION:
NativeMethods.MSLLHOOKSTRUCT info = (NativeMethods.MSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(NativeMethods.MSLLHOOKSTRUCT));
DateTime dt = DateTime.Today.AddMilliseconds(info.time);
////Debug.WriteLine("dt: {0}", dt);
////Debug.WriteLine("pt: {0}", info.pt);
////Debug.WriteLine("mouseData: {0}", info.mouseData);
////Debug.WriteLine("flags: {0}", info.flags);
////Debug.WriteLine("time: {0}", info.time);
////Debug.WriteLine("dwExtraInfo: {0}", info.dwExtraInfo);
////Debug.WriteLine("");
int identifier = wParam.ToInt32();
switch (identifier)
{
case NativeMethods.WM_MOUSEMOVE:
this.OnMouseMove(new MouseMoveEventArgs()
{
X = info.pt.x,
Y = info.pt.y,
Timestamp = dt
});
break;
case NativeMethods.WM_MOUSEWHEEL:
case NativeMethods.WM_MOUSEHWHEEL:
this.OnMouseWheel(EventArgs.Empty);
break;
case NativeMethods.WM_LBUTTONUP:
case NativeMethods.WM_MBUTTONUP:
case NativeMethods.WM_RBUTTONUP:
case NativeMethods.WM_XBUTTONUP:
case NativeMethods.WM_NCXBUTTONUP:
this.OnMouseUp(new MouseButtonEventArgs()
{
ButtonState = MouseButtonStateEnum.Released,
Button = ConvertToButtonEnum(identifier),
X = info.pt.x,
Y = info.pt.y,
Timestamp = dt
});
break;
case NativeMethods.WM_LBUTTONDOWN:
case NativeMethods.WM_MBUTTONDOWN:
case NativeMethods.WM_RBUTTONDOWN:
case NativeMethods.WM_XBUTTONDOWN:
case NativeMethods.WM_NCXBUTTONDOWN:
this.OnMouseDown(new MouseButtonEventArgs()
{
ButtonState = MouseButtonStateEnum.Released,
Button = ConvertToButtonEnum(identifier),
X = info.pt.x,
Y = info.pt.y,
Timestamp = dt
});
break;
}
break;
}
return(handled);
}