title: Handle clipboard copy on UserControl
body: <p>I have complex UserControl (grid, edit controls for grid, etc...) and I want handle CTRL+C keyboard shortcut, however I don't want disable a native functions by edit controls (textboxes, comboboxes, etc...). If the CTRL+C is not handled by other inner controls I want handle it by myself (copy whole row(s) from grid, etc...).</p>
  
  <p>I tried override WndProc method in UserControl and check for WM_COPY and WM_COPYDATA, but it doesn't work. It works only on final target control (TextBox for example).</p>