It will also cover the latest developments in delphi 5 currently due out in september 1999this book will teach com programming to delphi 4 and 5 programmers after providing an understanding of the com framework it offers a practical exploration of com to enable delphi developers to program component based applications. In this selection excerpted from delphi com programming author eric harmon discusses interfaces and automation variants and automation dispinterfaces dual interfaces and automating microsoft ado in the past three chapters ive spent a lot of time discussing interfaces and how to create com . Beginner developers eager to master the delphi programming language should already be familiar with the basics of microsoft windows learning delphi is easiest if you approach it from a guided tutorial based frame of reference