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 KeepImages ON | OFF

 If KeepImages is turned OFF, all patterns loaded will be
 flushed when the window has been updated. This frees up chip memory, but
 then the patterns has to be reloaded every time the window is updated.
 So, if you have made a window that never will be updated, you can turn
 KeepImages OFF to spare some chip memory.


 Default is ON

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