Apply undo storage options.
Gets a value indicating whether the command specified in the command parameter is supported.
Execute a new command.
Instance of a command.
Called after command action has been executed.
Gets a value indicating whether the undo storage can undo changes.
Gets a value indicating whether the undo storage can redo changes.
Gets current undo level index.
Gets total undo levels count.
Gets a flag indicating whether an undo/redo or execute operation is in progress.
Command based undo state storage.