docs: def loadedFilenames( self ):
          """
          Returns a list of all the xdk files that are currently loaded.
          
          :return     [<str>, ..]
          """
          output = []
          for i in range(self.uiContentsTREE.topLevelItemCount()):
              item = self.uiContentsTREE.topLevelItem(i)
              output.append(nativestring(item.filepath()))
          return output