private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0)
{
MSLLHOOKSTRUCT hookStruct = (MSLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(MSLLHOOKSTRUCT));
MouseHookEventType type = MouseHookEventType.LButtonDown;
switch ((MouseMessages)wParam)
{
case MouseMessages.WM_LBUTTONDOWN:
type = MouseHookEventType.LButtonDown;
break;
case MouseMessages.WM_LBUTTONUP:
type = MouseHookEventType.LButtonUp;
break;
case MouseMessages.WM_RBUTTONDOWN:
type = MouseHookEventType.RButtonDown;
break;
case MouseMessages.WM_RBUTTONUP:
type = MouseHookEventType.RButtonUp;
break;
case MouseMessages.WM_MOUSEWHEEL:
type = MouseHookEventType.MouseWheel;
break;
case MouseMessages.WM_MOUSEMOVE:
type = MouseHookEventType.MouseMove;
break;
}
if (MouseEvent != null)
{
MouseEvent(null, new MouseHookEventArgs()
{
Type = type,
X = hookStruct.pt.x,
Y = hookStruct.pt.y
});
}
}
return(CallNextHookEx(_hookID, nCode, wParam, lParam));
}
/// <summary>
/// Constructs a new MouseHookEvent
/// </summary>
/// <param name="wParam">The <c>wParam</c> (Message code) for the
/// Mouse Hook event</param>
/// <param name="mhs">The <c>MOUSEHOOKEVENT</c> structure
/// for the hook event.</param>
public MouseHookEventArgs(
IntPtr wParam,
MOUSEHOOKSTRUCT mhs
)
{
switch ((int)wParam)
{
case WM_MOUSEMOVE:
eventType = MouseHookEventType.MouseMove;
// we could check if we're over a non-client
// area here etc
button = MouseButtons.None;
break;
case WM_LBUTTONDOWN:
eventType = MouseHookEventType.MouseDown;
button = MouseButtons.Left;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_LBUTTONUP:
eventType = MouseHookEventType.MouseUp;
button = MouseButtons.Left;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_LBUTTONDBLCLK:
eventType = MouseHookEventType.DblClick;
button = MouseButtons.Left;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_MBUTTONDOWN:
eventType = MouseHookEventType.MouseDown;
button = MouseButtons.Middle;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_MBUTTONUP:
eventType = MouseHookEventType.MouseUp;
button = MouseButtons.Middle;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_MBUTTONDBLCLK:
eventType = MouseHookEventType.DblClick;
button = MouseButtons.Middle;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_RBUTTONDOWN:
eventType = MouseHookEventType.MouseDown;
button = MouseButtons.Right;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_RBUTTONUP:
eventType = MouseHookEventType.MouseUp;
button = MouseButtons.Right;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_RBUTTONDBLCLK:
eventType = MouseHookEventType.DblClick;
button = MouseButtons.Right;
eventLocation = MouseHookEventLocation.Client;
break;
case WM_NCLBUTTONDOWN:
eventType = MouseHookEventType.MouseDown;
button = MouseButtons.Left;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCLBUTTONUP:
eventType = MouseHookEventType.MouseUp;
button = MouseButtons.Left;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCLBUTTONDBLCLK:
eventType = MouseHookEventType.DblClick;
button = MouseButtons.Left;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCMBUTTONDOWN:
eventType = MouseHookEventType.MouseDown;
button = MouseButtons.Middle;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCMBUTTONUP:
eventType = MouseHookEventType.MouseUp;
button = MouseButtons.Middle;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCMBUTTONDBLCLK:
eventType = MouseHookEventType.DblClick;
button = MouseButtons.Middle;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCRBUTTONDOWN:
eventType = MouseHookEventType.MouseDown;
button = MouseButtons.Right;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCRBUTTONUP:
eventType = MouseHookEventType.MouseUp;
button = MouseButtons.Right;
eventLocation = MouseHookEventLocation.NonClient;
break;
case WM_NCRBUTTONDBLCLK:
eventType = MouseHookEventType.DblClick;
button = MouseButtons.Right;
eventLocation = MouseHookEventLocation.NonClient;
break;
}
x = mhs.x;
y = mhs.y;
handle = mhs.handle;
hitTestCode = mhs.wHitTestCode;
extraData = mhs.dwExtraInfo;
}
