APTdoc 1.5 is the documentation tool for Gupta/Centura SQLWindows APT source code. It scans the source code for relationships between elements (variables, functions, classes, windows and comments) and it generates nice, readable and portable HTML output.

It is very easy to use, it works with any number of source modules, it is highly configurable and it is able to show the cross-references (i.e. it can tell you what are the callers and the callees of any function).