Go forwards or backwards in the history of a stacked-tree.
Ignored extra arguments.
A stacked-tree has a ring of 50 elements in which it records the
and scroll position before each change of the
, and before each user left-click. The function
stacked-tree-history-backward goes to the previous record of
, and the function
stacked-tree-history-backward goes to the next record. Going to the previous/next record means changing the
and scroll position to their recorded values, and making this record the current one.
The meaning of root-width is explained in stacked-tree.
stacked-tree-history-backward are used by the
Ctrl-f gestures and you can use them to implement your own gestures. The
means that you can use these functions in the input-model directly.
CAPI User Guide and Reference Manual (Windows version) - 3 Aug 2017