protected override IntPtr HookProcess(int nCode, IntPtr wParam, IntPtr lParam)
{
if (EnableEvents)
{
// If OK and someone listens to our events
if (nCode >= 0)
{
var info = new CURSORINFO();
info.Size = Marshal.SizeOf(info.GetType());
if (!GetCursorInfo(out info))
{
var ex = new System.ComponentModel.Win32Exception();
throw new Exception(ex.Message);
}
var button = MouseButtons.None;
var param = wParam.ToInt32();
// Marshall the data from callback.
var mStruct = (MSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(MSLLHOOKSTRUCT));
var delta = 0;
var tu = new TestUnion { Number = mStruct.mouseData };
MouseKey mk = 0;
int lastX = 0;
int lastY = 0;
bool handled;
switch (param)
{
case WM_MOUSEMOVE:
var x = mStruct.pt.x;
var y = mStruct.pt.y;
if (prevX == -1 || prevY == -1)
{
scrnX = SystemInformation.VirtualScreen.Width - 1;
scrnY = SystemInformation.VirtualScreen.Height - 1;
prevX = x;
prevY = y;
}
lastX = x - prevX;
lastY = y - prevY;
var fX = (int)Math.Max(Math.Min(scrnX, x), 0);
var fY = (int)Math.Max(Math.Min(scrnY, y), 0);
if (fX != x || fY != y) SetCursorPos(fX, fY);
prevX = fX;
prevY = fY;
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
button = MouseButtons.Left;
break;
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
button = MouseButtons.Middle;
break;
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
button = MouseButtons.Right;
break;
case WM_XBUTTONDOWN:
case WM_XBUTTONUP:
case WM_XBUTTONDBLCLK:
button = MouseButtons.XButton1;
if (tu.High == 1) mk = MouseKey.MK_XBUTTON1;
if (tu.High == 2) mk = MouseKey.MK_XBUTTON2;
break;
case WM_NCXBUTTONDOWN:
case WM_NCXBUTTONUP:
case WM_NCXBUTTONDBLCLK:
button = MouseButtons.XButton2;
if (tu.High == 1) mk = MouseKey.MK_XBUTTON1;
if (tu.High == 2) mk = MouseKey.MK_XBUTTON2;
break;
case WM_MOUSEWHEEL:
case WM_MOUSEHWHEEL:
delta = (int)tu.High;
mk = (MouseKey)tu.ULow;
break;
case WM_TOUCH:
try
{
handled = DecodeTouch(wParam, lParam);
}
catch (Exception ex)
{
if (OnError != null) OnError(this, new UnhandledExceptionEventArgs(ex, false));
}
break;
}
var ea = new MouseHookEventArgs(mStruct, info, mk, param, lastX, lastY);
if (OnMouseHook != null) OnMouseHook(this, ea);
int clickCount = 0;
if (button != MouseButtons.None) clickCount = (param == WM_LBUTTONDBLCLK || param == WM_RBUTTONDBLCLK) ? 2 : 1;
var e = new MouseEventArgs(button, clickCount, mStruct.pt.x, mStruct.pt.y, delta);
// Raise Events.
if (OnMouseUp != null && (param == WM_LBUTTONUP || param == WM_MBUTTONUP || param == WM_RBUTTONUP || param == WM_XBUTTONUP || param == WM_NCXBUTTONUP)) OnMouseUp(this, e);
else if (OnMouseDown != null && (param == WM_LBUTTONDOWN || param == WM_MBUTTONDOWN || param == WM_RBUTTONDOWN || param == WM_XBUTTONDOWN || param == WM_NCXBUTTONDOWN)) OnMouseDown(this, e);
else if (OnMouseMove != null && (param == WM_MOUSEMOVE)) OnMouseMove(this, e);
else if (OnMouseWheel != null) OnMouseWheel(this, e);
else if (OnMouseActivity != null) OnMouseActivity(this, e);
}
}
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
protected override IntPtr Hook1Procedure(int nCode, IntPtr wParam, IntPtr lParam)
{
if (EnableEvents)
{
// If OK and someone listens to our events
if (nCode >= 0)
{
var info = new CURSORINFO();
info.Size = Marshal.SizeOf(info.GetType());
if (!NativeMethods.GetCursorInfo(out info))
{
var ex = new System.ComponentModel.Win32Exception();
throw new Exception(ex.Message);
}
var button = MouseButtons.None;
var param = wParam.ToInt32();
// Marshall the data from callback.
var mStruct = (MSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(MSLLHOOKSTRUCT));
var delta = 0;
var tu = new TestUnion(mStruct.mouseData);
MouseKey mk = 0;
int lastX = 0;
int lastY = 0;
bool handled;
var unknownAction = false;
switch (param)
{
case WM_MOUSEMOVE:
var x = mStruct.pt.x;
var y = mStruct.pt.y;
if (prevX == -1 || prevY == -1)
{
scrnX = SystemInformation.VirtualScreen.Width - 1;
scrnY = SystemInformation.VirtualScreen.Height - 1;
prevX = x;
prevY = y;
}
lastX = x - prevX;
lastY = y - prevY;
var fX = Math.Max(Math.Min(scrnX, x), 0);
var fY = Math.Max(Math.Min(scrnY, y), 0);
if (fX != x || fY != y)
{
NativeMethods.SetCursorPos(fX, fY);
}
prevX = fX;
prevY = fY;
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_LBUTTONDBLCLK:
button = MouseButtons.Left;
break;
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_MBUTTONDBLCLK:
button = MouseButtons.Middle;
break;
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_RBUTTONDBLCLK:
button = MouseButtons.Right;
break;
case WM_XBUTTONDOWN:
case WM_XBUTTONUP:
case WM_XBUTTONDBLCLK:
button = MouseButtons.XButton1;
if (tu.High == 1)
{
mk = MouseKey.MK_XBUTTON1;
}
if (tu.High == 2)
{
mk = MouseKey.MK_XBUTTON2;
}
break;
case WM_NCXBUTTONDOWN:
case WM_NCXBUTTONUP:
case WM_NCXBUTTONDBLCLK:
button = MouseButtons.XButton2;
if (tu.High == 1)
{
mk = MouseKey.MK_XBUTTON1;
}
if (tu.High == 2)
{
mk = MouseKey.MK_XBUTTON2;
}
break;
case WM_MOUSEWHEEL:
case WM_MOUSEHWHEEL:
delta = tu.High;
mk = (MouseKey)tu.ULow;
break;
case WM_TOUCH:
try
{
handled = DecodeTouch(wParam, lParam);
}
catch (Exception ex)
{
if (OnError != null)
{
OnError(this, new UnhandledExceptionEventArgs(ex, false));
}
}
break;
default:
unknownAction = true;
break;
}
var ea = new MouseHookEventArgs(mStruct, info, mk, param, lastX, lastY, null);
if (OnMouseHook != null)
{
OnMouseHook(this, ea);
}
int clickCount = 0;
if (button != MouseButtons.None)
{
clickCount = (param == WM_LBUTTONDBLCLK || param == WM_RBUTTONDBLCLK) ? 2 : 1;
}
var e = new MouseEventArgs(button, clickCount, mStruct.pt.x, mStruct.pt.y, delta);
// Raise Events.
if (OnMouseUp != null && (param == WM_LBUTTONUP || param == WM_MBUTTONUP || param == WM_RBUTTONUP || param == WM_XBUTTONUP || param == WM_NCXBUTTONUP))
{
OnMouseUp(this, e);
}
else if (OnMouseDown != null && (param == WM_LBUTTONDOWN || param == WM_MBUTTONDOWN || param == WM_RBUTTONDOWN || param == WM_XBUTTONDOWN || param == WM_NCXBUTTONDOWN))
{
OnMouseDown(this, e);
}
else if (OnMouseMove != null && (param == WM_MOUSEMOVE))
{
OnMouseMove(this, e);
}
else if (OnMouseWheel != null)
{
OnMouseWheel(this, e);
}
else if (OnMouseActivity != null)
{
OnMouseActivity(this, e);
}
if (unknownAction)
{
var ev = OnMouseUnknown;
if (ev != null)
{
ev(this, ea);
}
}
}
}
return(NativeMethods.CallNextHookEx(_Hook1Handle, nCode, wParam, lParam));
}