title: Click a button from another Application, emulating mouse + coords?
body: <p>I have tried to click on the button using the follow:</p>
  
  <pre><code>private const int BN_CLICK = 0xF5;
  private const uint WM_LBUTTONDOWN = 0x0201;
  private const uint WM_LBUTTONUP = 0x0202;
  SendMessage(sendButton, BN_CLICK, IntPtr.Zero, IntPtr.Zero);
  SendMessage(sendButton, WM_LBUTTONDOWN, IntPtr.Zero, IntPtr.Zero);
  SendMessage(sendButton, WM_LBUTTONUP, IntPtr.Zero, IntPtr.Zero);
  </code></pre>
  
  <p>All the above fail to click the button, <strong>so I was wondering about other alternatives I have or if it is possible to get the button location X and Y from it's handler</strong> ?</p>
  
  <p>Suggestions, ideas would be really good.</p>