// Local mouse action event handler
public void MouseAction(object sender, MouseActionEventArgs e)
{
FrmWindowPicker form = (FrmWindowPicker) sender;
Window win = new Tool().getWindow(e.hWnd, e.point);
if (win != null)
{
//high light window's fame
switch (e.mouseMessage)
{
case MouseMessages.WM_LBUTTONDOWN:
drawFrame(win);
lastWin = win;
break;
case MouseMessages.WM_LBUTTONUP:
drawFrame(lastWin);
if (lastWin.hWnd != win.hWnd)
{
drawFrame(win);
Thread thd = new Thread(drawFrame) {Name = "delay"};
thd.Start(win);
}
lastWin = null;
break;
}
// Exits the global low level mouse hook, calls GC.Collect() actively, and then reenters a new hook
form.SetHook(FrmWindowPicker.WH_MOUSE_LL);
form.ShowWindowProperties(win);
form.PickedWindow = win;
}
}
/// <summary>
/// Mouse event hook callback
/// </summary>
/// <param name="nCode"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
public IntPtr Mouse_HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
try
{
if (nCode < 0) return User32.CallNextHookEx(_mouseHookId, nCode, wParam, lParam);
POINT point = ((MSLLHOOKSTRUCT) Marshal.PtrToStructure(lParam, typeof (MSLLHOOKSTRUCT))).pt;
MouseMessages mouseMessage;
switch ((MouseMessages) wParam)
{
case MouseMessages.WM_LBUTTONDOWN:
case MouseMessages.WM_LBUTTONUP:
mouseMessage = (MouseMessages) wParam;
break;
default:
// Do not process other events.
return User32.CallNextHookEx(_mouseHookId, nCode, wParam, lParam);
}
IntPtr hWnd;
IntPtr hOwner = _tool.getRootOwner(point, out hWnd);
// The event happend on window picker form, don't process it
if (hOwner == Handle)
{
// Allow buttons on window picker form to receive clicking immediately.
Activate();
Debug.Print("Ignoring Action!");
}
else
{
// Prepare parementers and raise a local mouse event
MouseActionEventArgs e = new MouseActionEventArgs(mouseMessage, point, hWnd);
OnMouseAction(e);
}
}
catch (Exception e)
{
Debug.WriteLine(
"Error in private IntPtr Mouse_HookCallback(int nCode, IntPtr wParam, IntPtr lParam): " + e.Message);
}
return User32.CallNextHookEx(_mouseHookId, nCode, wParam, lParam);
}
protected virtual void OnMouseAction(MouseActionEventArgs e)
{
if (MouseAction != null)
{
// Invokes the delegates.
MouseAction(this, e);
}
}
