To retrieve pathes via a key combinations
the shortcut must start with a modifier key.
TESTED  keySstrokes  ~Rctrl & left::    ~ctrl & shift::

#x::  ; or  ~Lwin & x::
   highlightedPATH := GetSelectedPath()
   Clipboard := highlightedPATH  
return

GetSelectedPath()
{
   FileName =
   AlterClipboardcontent := ClipboardAll
   Clipboard =
   Send ^c                              
   ClipWait, 1                         
   If (FileExist(ClipBoard))            
   {                                    
     FileName := ClipBoard             
   }
   ClipBoard := AlterClipboardcontent    
   Return FileName
}