This dialog shows you a list of the actions you have most recently
performed on an image, with a small sketch that attempts to illustrate the
changes produced by each. You can revert the image to any point in its
Undo History simply by clicking on the right entry in the list. For more
information on GIMP's Undo mechanism and how it works, see the section on
Undoing.
2.7.1.
Activating the dialog
The “Undo History” dialog is a dockable dialog; see the
section Section 2.3, “Dialogs and Docking” for help on manipulating
it.
You can access it:
2.7.2.
Using the Undo History dialog
The most basic thing you can do is to select a point in the Undo History
by clicking on it in the list. You can go back and forth between states
in this way as much as you please, without losing any information or
consuming any resources. In most cases, the changes are very fast.
At the bottom of the dialog are three buttons:
-
Undo
-
This button has the same effect as choosing
→
from the menu, or pressing
Ctrl+Z;
it reverts the image to the next state back in the undo history.
-
Redo
-
This button has the same effect as choosing
→
from the menu, or pressing
Ctrl+Y;
it advances the image to the next state forward in the Undo History.
-
Clear Undo History
-
This button removes all contents from the undo history except the
current state. If you press it, you are asked to confirm that you
really want to do this. The only reason for doing it would be if
you are very constrained for memory.
![[Note]](images/note.png)
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Note |
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In a tab, this dialog is represented by
.
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