Every time you successfully complete a comparison DeltaWalker automatically records it in its comparison history so that later you can run it the very same way you last did.
That kind of history is well familiar to you - browsers of any grade offer it. Just as browsers do, DeltaWalker lets you manage its comparison history too - you can delete, rename, or edit any of the preferences governing that comparison.
A comparison history entry holds all the bits defining that comparison - the pathnames/URIs of the compared resources, the filters, if any, as well as all other preferences exposed via the comparison-specific preference pages.
As far as comparison history is concerned, there are two types of preferences in DeltaWalker:
preferences are the preferences defining a specific comparison.
Modifying the preferences of a comparison has no effect on the
preferences of other comparisons, nor on the default comapison
preferences. The easiest way to access a comparison's preferences is
to open/activate that comparison then use the
Cmd+ ,shortcut, click on the toolbar button or go to DeltaWalker> Preferences...
preferences for new comparisons are the preferences
used when you create a new comparison. When you create a new
comparison window, it gets a snapshot of the default comparison
preferences and makes it its own. Default comparison preferences are
Edit> Default Preferences...
Let's look at an example:
You launch DeltaWalker, you create a new file comparison and you drag & drop a pair of files for comparison. Dy default DeltaWalker recognizes and displays differences in character case, however you realize that you are not interested in them. You tell DeltaWalker to ignore them by clicking on the dropdown arrow next to the toolbar button and selecting the "Ignore Character Case" menu item. If the files you are comparing have character case differences you would immediately see the effect of the change. You just modified the preferences of the file comparison you are currently working on. DeltaWalker automatically saved the change so that next time you open and run this comparison, the new preference value will be in effect.
On the other hand, the change had no effect on the default comparison
preferences, which means that next time you create a new file
comparison it would have "Ignore Character Case" unselected.
If you like all new text comparisons to ignore differences in
character case you go to
Opening a Comparison From History
You can open a comparison history item from the comparison history
window accessible via the little down-pointing arrows next to the
The comparison history window groups its entries by their creating