1  
   2  
   3  -- 
   4  -- The on run handler is called if the user has double clicked the icon
   5  --
   6  on run
   7  	display dialog "Please drop an image file on this Icon to set it as the desktop background"
   8  end run
   9  
  10  
  11  --
  12  -- The on open handler is called when the user drags and drops  afile on the icon
  13  --
  14  on open draggeditems
  15  	set imageFile to last item of draggeditems
  16  	
  17  	tell application "Finder"
  18  		select window of desktop
  19  		try
  20  			set desktop picture to file (imageFile as text)
  21  		on error
  22  			display dialog "Invalid image file."
  23  		end try
  24  	end tell
  25  	
  26  end open
  27  
  28  
  29