public static extern bool GetCursorPos(out POINT lpPoint);
public static void simulateClickMechanically(WindowDetection.Structure ws, Point position, bool exact)
{
IntPtr previousTopWindow = WindowDetection.GetForegroundWindow();
WindowDetection.SetForegroundWindow(ws.mainWindow);
WindowDetection.SetFocus(ws.mainWindow);
System.Threading.Thread.Sleep(25);
POINT p = new POINT();
GetCursorPos(out p);
position.X += ws.position.Left;
position.Y += ws.position.Top;
Point clickPos = prepareClickPoint(ws, position, exact);
SetCursorPos(clickPos.X, clickPos.Y);
System.Threading.Thread.Sleep(1);
mouse_event(MouseEventFlags.MOUSEEVENTF_LEFTDOWN, (uint)clickPos.X, (uint)clickPos.Y, (uint)0, UIntPtr.Zero);
mouse_event(MouseEventFlags.MOUSEEVENTF_LEFTUP, (uint)clickPos.X, (uint)clickPos.Y, 0, UIntPtr.Zero);
SetCursorPos(p.X, p.Y);
WindowDetection.SetForegroundWindow(previousTopWindow);
WindowDetection.SetFocus(previousTopWindow);
}