title: Vb.net: Send text to window via windows messages
body: <p>I'm trying to make a program with vb.net (VS2008) for studio shooting with my Nikon D600.
  I'm using a program called ControlMyNikon for tethered shooting and it's working perfectly.
  It has this external control-feature with following instructions: <a href="http://i.jjj.fi/a9dAQ7z.png" rel="nofollow">http://i.jjj.fi/a9dAQ7z.png</a></p>
  
  <p>Could someone give me hint what does 'send string to 'ControlMyNikon v4.1' window with windows messages' actually mean?</p>
  
  <p>I tried with SendMessages. 
  I was able to change window title with WM_SETTEXT but that's all.
  I'm able to get the window handle but don't know how to send any string to it.</p>
  
  <p>Help? :)</p>