Declarationproperty ImageCacheUseDisk: Boolean;
When enabled, a disk file is used to cache the images and view. Otherwise only system memory is used.
Disabling this option is useful if you have low disk space or don't want ImageEn to write to disk.
Warning: Setting this property will also call Clear
Note: This is not a persistent disk cache, i.e. the cache is not maintained between session. It simply lowers memory usage of the internal cache. For a persistent disk cache, enable DiskCache