How to highlight all search words

Hello,

It might be that you just need to register the display highlighting styles as described in this documentation topic.  There are special display-related highlighting styles that can be registered by that class, and one of them (FindMatchHighlight) is for highlighting search results.  Please let us know if that solves the problem.

Hello, 
Thank you for your support.
I added to the language difinition file as follows, then all search words are colored by foreground: black, background: white.

<LanguageDefinition.ClassificationTypes>
...
<ClassificationType Key="FindMatchHighlight" DefaultStyle=",,,#FFF6BA51" />

Hello,

You should not update the language definition XML file by hand.  The Language Designer app is what you want to use to edit .langproj files and it will output .langdef files to load into SyntaxEditor.  Also of note, the classification types in those language files are only for the syntax language and not for general display usage.

Instead, you'd want to register all default display-related classification types and highlighting styles at app startup.  Then you could further customize the style.  Here's a full code example:

var displayClassificationTypes = new DisplayItemClassificationTypeProvider();
displayClassificationTypes.RegisterAll();
			
AmbientHighlightingStyleRegistry.Instance.Register(displayClassificationTypes.FindMatchHighlight,
	new HighlightingStyle(Colors.White, Colors.Red), overwriteExisting: true);

Hello,
Thank you for your support.
Now we are able to highlight specific words in our application.
(AmbientHighlightingStyleRegistry.Instance.Register is called in static constructor in the AdornmentsHighlightWord sample project.
On the other hand, in our application, it is necessary to call it in non-static constructor in a class.)