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Tools on top of VCL. Common dialogs, file and print dialogs, wizards, vcl filters, lots of helper code.

Image swapping

LO has two kind of swapout mechanisms:

1) Size based auto swapping: when the size of all graphic objects reaches a configurable limit (20 MB by default) then some of the graphics are saved to the local file system and freed in the memory. Configure: Tools -> Options -> Memory -> GraphicsCache -> Use for LibreOffice

2) Time based auto swapping: after an image is swapped in / loaded a timer starts and when the timer (1 min by default) has a time out this image is swapped out ( sometimes this time out is ignored when the image is in use ). Configure: Tools -> Options -> Memory -> GraphicsCache -> Remove from memory after

Both swapping are done by GraphicObject and GraphicManager.