What is the SearchRequest.SearchTargets search sytax

Hi,

I'm working on a plugin in which I want to create a custom search and wonder if anybody has some documentation on the 'SearchTarget' string syntax?

In the FindText project in the PowerToys examples the 'SearchTarget' string is implemented as:

string.Format("Text \"\"", mySearchString)

So I'm guessing that the 'Text' prefix is a keyword. Is this so and are there more keywords?

Any information would be a great help.

Rob Smyth