c# websitesindeki bütün resimleri indirme

IHTMLDocument2 doc = (IHTMLDocument2)webBrowser1.Document.DomDocument;

IHTMLControlRange imgRange = (IHTMLControlRange)((HTMLBody)doc.body).createControlRange(); 

foreach (IHTMLImgElement img in doc.images)       {       
 
imgRange.add((IHTMLControlElement)img);       
 
imgRange.execCommand("Copy", false, null);  

try{ 
    using(Bitmap bmp = (Bitmap)Clipboard.GetDataObject().GetData(DataFormats.Bitmap))            
    bmp.Save(img.nameProp + ".jpg");     
   } 
catch (System.Exception ex)
   {  
   MessageBox.Show(ex.Message);          
   }       
}