A new extension called ntk is being written for Win32 and X11. Ntk is going to replace the Tk layer currently used by [NexTk] and the megaimagetk widget.

Ntk (.dll/.so) provides:

   * event handling for Win32 and X11 that evaluates Tcl-side callbacks. 
   * fast megaimage display using XShm and DBE with X11 
   * selection control (copy/paste) 
   * the ability to create system windows to host NexTk windows. 
   * window destruction 
   * window movement/resize requests

For more info, see [NexTK].

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