Undo - Undo Implementation

Undo Implementation

The Command pattern is a software design pattern which can be used to implement Multi-level Undo. The Memento pattern is useful for capturing the state of the program before user actions. This can be used for state reversal needed in some undo implementations.

Read more about this topic:  Undo

Famous quotes containing the word undo:

    “But ‘twas from mine, he took desire,
    Enough to undo the amorous world.”
    —Aphra Behn (1640–1689)