protected override void OnMessageReceived(object sender, MessageEventArgs e)
{
Contract.Requires(e != null);
var eventArgs = new MouseMessageEventArgs
{
MessageCode = BitConverter.ToInt32(e.Bytes, 0),
X = BitConverter.ToInt32(e.Bytes, 4),
Y = BitConverter.ToInt32(e.Bytes, 8),
Handle = BitConverter.ToInt32(e.Bytes, 12),
HitTestCode = BitConverter.ToInt32(e.Bytes, 16),
Delta = BitConverter.ToInt16(e.Bytes, 20),
};
Debug.WriteLine($"Code: {eventArgs.MessageCode}; X: {eventArgs.X}; Y: {eventArgs.Y}; Delta: {eventArgs.Delta}");
MessageReceived?.Invoke(this, eventArgs);
switch (GetMessageCode(eventArgs.MessageCode))
{
case MouseMessageCode.MouseMove:
MouseMove?.Invoke(this, eventArgs);
break;
case MouseMessageCode.LeftButtonDown:
LeftButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.LeftButtonUp:
LeftButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.LeftButtonDblClk:
LeftButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.RightButtonDown:
RightButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.RightButtonUp:
RightButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.RightButtonDblClk:
RightButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MiddleButtonDown:
MiddleButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MiddleButtonUp:
MiddleButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MiddleButtonDblClk:
MiddleButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MouseWheel:
MouseWheel?.Invoke(this, eventArgs);
break;
case MouseMessageCode.XButtonDown:
XButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.XButtonUp:
XButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.XButtonDblClk:
XButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MouseHWheel:
MouseHWheel?.Invoke(this, eventArgs);
break;
default:
break;
}
if (_messageHandlers.ContainsKey(eventArgs.MessageCode))
{
_messageHandlers[eventArgs.MessageCode]?.Invoke(this, eventArgs);
}
}
/// <summary>
/// The internal hook callback.
/// </summary>
private IntPtr HookCallback(
int nCode, IntPtr wParam, IntPtr lParam)
{
int nmsg = wParam.ToInt32();
WindowMessage msg = (WindowMessage)nmsg;
if (nCode >= 0 &&
(nmsg >= (int)WindowMessage.WM_MOUSEFIRST && nmsg <= (int)WindowMessage.WM_MOUSEWHEEL))
{
try
{
int vkCode = Marshal.ReadInt32(lParam);
Keys key = (Keys)vkCode;
if (!NativeMethods.GetCursorPos(out NativeMethods.POINT pt))
{
throw new Win32Exception();
}
MouseHookEventArgs eventArgs = new MouseHookEventArgs(new Point(pt.X, pt.Y));
switch (msg)
{
case WindowMessage.WM_MOUSEMOVE:
MouseMove?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_LBUTTONDOWN:
LButtonDown?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_LBUTTONUP:
LButtonUp?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_LBUTTONDBLCLK:
LButtonDblClick?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_RBUTTONDOWN:
RButtonDown?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_RBUTTONUP:
RButtonUp?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_RBUTTONDBLCLK:
RButtonDblClick?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_MBUTTONDOWN:
MButtonDown?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_MBUTTONUP:
MButtonUp?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_MBUTTONDBLCLK:
MButtonDblClick?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_XBUTTONDOWN:
XButtonDown?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_XBUTTONUP:
XButtonUp?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_XBUTTONDBLCLK:
XButtonDblClick?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_MOUSEWHEEL:
MouseVWheel?.Invoke(this, eventArgs);
break;
case WindowMessage.WM_MOUSEHWHEEL:
MouseHWheel?.Invoke(this, eventArgs);
break;
}
// If Handled is set to true,
// return 1 and stop the keyboard event
// from propagating to other applications.
if (eventArgs.Handled)
{
return((IntPtr)1);
}
}
catch (Exception e)
{
System.Windows.Application.Current.Dispatcher.InvokeAsync(() =>
{
System.Windows.MessageBox.Show(e.ToString(), "Application Error", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error);
});
}
}
return(NativeMethods.CallNextHookEx(_nativeHookId, nCode, wParam, lParam));
}
protected override void OnMessageReceived(object sender, MessageEventArgs e)
{
Contract.Requires(e != null);
var modifiers = BitConverter.ToUInt16(e.Bytes, 24);
var eventArgs = new MouseMessageEventArgs
{
MessageCode = BitConverter.ToInt32(e.Bytes, 0),
X = BitConverter.ToInt32(e.Bytes, 4),
Y = BitConverter.ToInt32(e.Bytes, 8),
Handle = BitConverter.ToInt32(e.Bytes, 12),
HitTestCode = BitConverter.ToInt32(e.Bytes, 16),
Modifiers = modifiers,
Shift = (modifiers & 0b100) > 0,
Control = (modifiers & 0b10) > 0,
Alt = (modifiers & 0b1) > 0,
};
var messageCode = GetMessageCode(eventArgs.MessageCode);
if (messageCode == MouseMessageCode.MouseWheel)
{
eventArgs.Delta = BitConverter.ToInt16(e.Bytes, 20);
}
else if (messageCode == MouseMessageCode.NCXButtonDown ||
messageCode == MouseMessageCode.NCXButtonUp ||
messageCode == MouseMessageCode.NCXButtonDblClk ||
messageCode == MouseMessageCode.XButtonDown ||
messageCode == MouseMessageCode.XButtonUp ||
messageCode == MouseMessageCode.XButtonDblClk)
{
eventArgs.XButtons = BitConverter.ToInt16(e.Bytes, 20);
}
Debug.Write($"Code: {eventArgs.MessageCode}; X: {eventArgs.X}; Y: {eventArgs.Y}; Modifiers: {eventArgs.Modifiers:x}; ");
Debug.WriteLine($"Delta: {eventArgs.Delta}; XButtons: {eventArgs.XButtons}");
MessageReceived?.Invoke(this, eventArgs);
switch (messageCode)
{
case MouseMessageCode.MouseMove:
MouseMove?.Invoke(this, eventArgs);
break;
case MouseMessageCode.LeftButtonDown:
LeftButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.LeftButtonUp:
LeftButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.LeftButtonDblClk:
LeftButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.RightButtonDown:
RightButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.RightButtonUp:
RightButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.RightButtonDblClk:
RightButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MiddleButtonDown:
MiddleButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MiddleButtonUp:
MiddleButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MiddleButtonDblClk:
MiddleButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MouseWheel:
MouseWheel?.Invoke(this, eventArgs);
break;
case MouseMessageCode.XButtonDown:
XButtonDown?.Invoke(this, eventArgs);
break;
case MouseMessageCode.XButtonUp:
XButtonUp?.Invoke(this, eventArgs);
break;
case MouseMessageCode.XButtonDblClk:
XButtonDblClk?.Invoke(this, eventArgs);
break;
case MouseMessageCode.MouseHWheel:
MouseHWheel?.Invoke(this, eventArgs);
break;
default:
break;
}
if (_messageHandlers.ContainsKey(eventArgs.MessageCode))
{
_messageHandlers[eventArgs.MessageCode]?.Invoke(this, eventArgs);
}
}