title: Is there any way to send key(s) to other application without focus?
body: <p>I have spent 3 days with this topic. All results that I found uses "SetForeground" and then, SendMessage or some APIs(keybd_event, kennedy(opensource) or etc). Of course, SendKeys does not send key(s) to specified process, I want to send key(s) to specified process that I know the PID or HWND.</p>
  
  <p>I have no ideas of it, is it possible?
  If not, I'd rather implement with SetForeground that I unintended.</p>
  
  <p>Any ideas?</p>