protected void FireMouseHWheel(MouseButtons buttons, int clicks, int x, int y, int delta)
{
MouseEventArgs args = new MouseEventArgs(buttons,
clicks, x, y, delta);
OnMouseHWheel(args);
//let everybody else have a crack at it
MouseHWheel?.Invoke(this, args);
}
private IntPtr AllMBHookProc(int code, IntPtr wParam, IntPtr lParam)
{
tagMSLLHOOKSTRUCT param = new tagMSLLHOOKSTRUCT();
param = (tagMSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(tagMSLLHOOKSTRUCT));
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.LBUTTONDOWN)
{
MouseDown?.Invoke(this, new MouseEventArgs(MouseButtons.Left, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.RBUTTONDOWN)
{
MouseDown?.Invoke(this, new MouseEventArgs(MouseButtons.Right, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.MBUTTONDOWN)
{
MouseDown?.Invoke(this, new MouseEventArgs(MouseButtons.Middle, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.XBUTTONDOWN)
{
MouseDown?.Invoke(this, new MouseEventArgs((param.mouseData & 0x10000) != 0 ? MouseButtons.XButton1 : MouseButtons.XButton2, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.LBUTTONUP)
{
MouseUp?.Invoke(this, new MouseEventArgs(MouseButtons.Left, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.RBUTTONUP)
{
MouseUp?.Invoke(this, new MouseEventArgs(MouseButtons.Right, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.MBUTTONUP)
{
MouseUp?.Invoke(this, new MouseEventArgs(MouseButtons.Middle, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.XBUTTONUP)
{
MouseUp?.Invoke(this, new MouseEventArgs(param.mouseData == 1 ? MouseButtons.XButton1 : MouseButtons.XButton2, 0, param.x, param.y, 0));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.MOUSEWHEEL)
{
MouseWheel?.Invoke(this, new MouseEventArgs(MouseButtons.None, 0, param.x, param.y, (int)(param.mouseData)));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.MOUSEHWHEEL)
{
MouseHWheel?.Invoke(this, new MouseEventArgs(MouseButtons.None, 0, param.x, param.y, (int)(param.mouseData)));
}
if (code >= 0 && wParam == (IntPtr)WinAPI.Message.WindowsMessage.MOUSEMOVE)
{
MouseMove?.Invoke(this, new MouseEventArgs(MouseButtons.None, 0, param.x, param.y, (int)(param.mouseData)));
}
return(WinAPI.Hook.CallNextHookEx(_mbHHook, code, wParam, lParam));
}
private int _wheelHPos = 0; //!< <summary>Unapplied horizontal scroll.</summary>
/// <summary>Scrolls horizontally and raises the MouseHWheel event</summary>
/// <param name="e"></param>
protected virtual void OnMouseHWheel(MouseWheelEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
if (CanContentScroll)
{
ScrollToHorizontalOffset(HorizontalOffset + e.Delta);
if (MouseHWheel != null)
{
MouseHWheel?.Invoke(this, e);
}
}
}
/// <summary>Raise a <see cref="MouseHWheel"/> event.</summary>
/// <param name="e">A <see cref="MouseEventArgs"/> that contains the event data. </param>
protected virtual void OnMouseHWheel(MouseEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
if (!AutoScroll)
{
return;
}
this.RollHorizontal(e.Delta);
MouseHWheel?.Invoke(this, e);
if (e is HandledMouseEventArgs eh)
{
eh.Handled = true;
}
}
internal override IntPtr Callback(int nCode, IntPtr wParam, IntPtr lParam)
{
var data = (MSLLHOOKSTRUCT)PtrToStructure(lParam, typeof(MSLLHOOKSTRUCT));
var ea = new LowLevelMouseProcEventArgs(data);
LowLevelMouseProc?.Invoke((WPARAM)wParam, ea);
switch ((WPARAM)wParam)
{
case WPARAM.WM_MOUSEMOVE:
MouseMove?.Invoke(ea);
break;
case WPARAM.WM_LBUTTONDOWN:
LButtonDown?.Invoke(ea);
break;
case WPARAM.WM_LBUTTONUP:
LButtonUp?.Invoke(ea);
break;
case WPARAM.WM_RBUTTONDOWN:
RButtonDown?.Invoke(ea);
break;
case WPARAM.WM_RBUTTONUP:
RButtonUp?.Invoke(ea);
break;
case WPARAM.WM_MOUSEWHEEL:
MouseWheel?.Invoke(ea);
break;
case WPARAM.WM_MOUSEHWHEEL:
MouseHWheel?.Invoke(ea);
break;
}
return(base.Callback(nCode, wParam, lParam));
}
/// <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 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);
}
}
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);
}
}
private void OnMouseHWheel(MouseHookEventArgs e)
{
MouseHWheel?.Invoke(this, e);
OnMouseEvent(e);
}
/// <summary>
/// Invoked by <see cref="HookMouseHWheel(int)"/>
/// </summary>
protected virtual void OnMouseHWheel(int delta)
{
MouseHWheel?.Invoke(this, new MouseTiltEventArgs(delta));
}
protected virtual void OnMouseHWheel(EventArgs e) //TODO: MouseEventArgs kellene
{
UpdateDocumentOffset();
Invalidate(); //TODO: SetDisplayRectLocation() kellene
MouseHWheel?.Invoke(this, e);
}
protected virtual void OnMouseHWheel(int delta)
{
MouseHWheel?.Invoke(this, new MouseTiltEventArgs(delta));
ScrollToHorizontalOffset(HorizontalOffset + delta * 0.5);
}
private void OnMouseHWheel(EventArgs e)
{
UpdateDocumentOffset();
Invalidate();
MouseHWheel?.Invoke(this, e);
}