The "screenshots" in Window Capture pages (the type of Dr.Explain page with callouts and all the excellent automation dealing with callouts) does not, in fact, HAVE to be a screenshot. It is just a bit-map image that, in the case of my project, happens to be a screenshot. This image can come from an actual screenshot that Dr.Explain captures, or it can come from a file, or it can come from the Windows clipboard, which is true for ANY image used in a Dr.Explain project.
Thus, the image can be a map, a diagram, an electrical schematic, a photograph -- literally ANY type of image that can be displayed on a computer, can be documented with or without callouts in Dr.Explain.
Given these possibilities:
a medical instructor might want to create a callout and attach it to a portion of an X-ray image he wants to call his students' attention to;
an Electronics Engineer might want to create callouts and attach them to specific parts of an electronics schematic diagram;
a Mechanical Engineer might want to create callouts to call attention to (and document) specific parts on an "exploded parts" diagram; or
a Technical Writer might want to do any or all of the above, or anything else that comes to his imagination or writing needs.
These facts make Dr.Explain an INCREDIBLY versatile documentation tool for almost any kind of documentation -- not just documentation of Windows applications, which just happens to be one of its specialties!
Examples:
Examples of "Screenshots" Created from Other Types of Images