Emitted when the ability to redo has changed.
Emitted when the ability to undo has changed.
Begin a not undoable action on the buffer. All changes between this call and the call to Source.undoManagerEndNotUndoableAction cannot be undone. This function should be re-entrant.
Get whether there are redo operations available.
Emits the can-redo-changed signal.
Get whether there are undo operations available.
Emits the can-undo-changed signal.
Ends a not undoable action on the buffer.
Get the main Gtk struct
Perform a single redo. Calling this function when there are no redo operations available is an error. Use Source.undoManagerCanRedo to find out if there are redo operations available.
Perform a single undo. Calling this function when there are no undo operations available is an error. Use Source.undoManagerCanUndo to find out if there are undo operations available.