This is an example program from my book, Delphi Programming
Unleashed, published by SAMS. You can pick up the book at
major stores, or by calling either 317-361-5400 or 
800-716-0044.

This code also contains, as a subset, the PICDLL example that
ran in the Developer Express Catalogue.

To compile the program, simple go to the DOS prompt and type
GO.BAT in the subdirectory where you unzipped this example 
program. If that fails, you need to compile the APIDLL.DPR
project, then the FRACTDLL.DPR project, and then MAINDEMO.DPR. You
can compile all three projects from inside DELPHI, but you can
only run MAINDEMO, and it will only run successfully if the
other two are first compiled. In other words, FRACTDLL and APIDLL
are adjuncts to the main program, which is called MAINDEMO. They
don't run separately, they are launched from MAINDEMO.

- Charlie Calvert