hi, how to get the ww and wl of an image in the clipboard, sorry for my English

This may not be exactly right ... it's off the top of my head.

IClipboardItem item = theSelectedItem;
IVoiLutProvider provider = item as IVoiLutProvider;
if (provider != null)
{
   double ww, wc;
   IVoiLutLinear lut = provider.VoiLutManager.GetLut() as IVoiLutLinear;
   if (lut != null)
   {
       ww = lut.WindowWidth;
       wc = lut.WindowCenter;
   }
}

Note: the IClipboardItem can also be an IDisplaySet, in which case you would need to iterate over it's PresentationImages.

thanks for the help, I leave the full code...

foreach (IClipboardItem clipboardItem in this.Context.SelectedClipboardItems) 
{ 
   if (clipboardItem.Item is IPresentationImage) 
   { 
     IPresentationImage image = (IPresentationImage)clipboardItem.Item; 
     double ww = 0, wc = 0; 
     IVoiLutProvider provider = ((IVoiLutProvider)image); 
     IVoiLutLinear lut = provider.VoiLutManager.GetLut() as IVoiLutLinear; 

       if (lut != null) 
       { 
       ww = lut.WindowWidth; 
       wc = lut.WindowCenter; 
       } 
  } 
}