undo, save
Set the maximum number of past configurations that can be saved in memory,
using the
undo and
save mechanisms. Everytime this number
is exceeded, the oldest configuration is discarded forever.
Although the number of
undo and
save levels
does not affect performance, the memory required to handle
multiple windows, with multiple layers, each layer with
undo and
save past configurations in memory,
can be significant. Therefore,
undo and
save
parameters should be kept to relatively low values, particularly
undo, where new configurations are generated automatically,
without any user intervention.
save works exactly as
undo,
except that configurations are saved manually by users.
Example: <layer undo="5" save="5"/> (default)
(defined in GAMGI_ENGINE_UNDO and GAMGI_ENGINE_SAVE)
Allowed values: non-negative integer (optional)