Part 3 is an overview of programming GDS using XDS.
GDS API: Concepts and Overview discusses GDS concepts and gives an overview of GDS programming.
XOM Programming describes XOM programming.
XDS Programming describes XDS programming.
Sample Application Programs contains programming examples.
Using Threads with the XDS/XOM API describes how to use threads with XDS and XOM.
XDS/COM Convenience Routines describes the XDS and XOM convenience routines.