code: def FromFile(self, filePath: str) -> bool:
          
          self.Release()
          self._bitmap = _DllClient.instance().dll.BitmapFromFile(ctypes.c_wchar_p(filePath))
          self._getsize()
          return self._bitmap > 0
docs: Load image from a file.
          filePath: str.
          Return bool, True if succeed otherwise False.