This tutorial assumes that you're familiar with C++ and have some prior Windows programming experience. Before beginning, it might be helpful to read Chapter 1 of the ObjectWindows Programmer's Guide, which presents a brief, nontechnical overview of the ObjectWindows 2.5 class hierarchy. This should help you become familiar with the principles behind the structure of the ObjectWindows class library.
For more detailed technical information on any subject discussed in this book, refer to the ObjectWindows Programmer's Guide and the ObjectWindows Reference Guide.