code: def setOverlayFromFile(self, ulOverlayHandle, pchFilePath):
          
  
          fn = self.function_table.setOverlayFromFile
          result = fn(ulOverlayHandle, pchFilePath)
          return result
docs: Separate interface for providing the image through a filename: can be png or jpg, and should not be bigger than 1920x1080.
          This function can only be called by the overlay's renderer process