[DUG]: How to make Plug-Ins?

[Brett Lin]

All Excuse me if this question looks simple and basic that not worth to answer. Suppose I got two programs already developed in standalone way, one is developed in Delphi and other is developed in C with either .EXE or .DLL extension, My purpose is to make program that is made in C a Plug-in then integrate to program that is made in Delphi(host program, that means we can run the C code in Delphi code). The questions are: 1, Dose anyone know how and probably can we got some points to start with? 2, How Delphi compile different language together? 3. How to do it if we failed above, then we decide both code developed in Delphi ? 4. For the interest of this user group discussions, if the host program is not developed in Delphi and have no source code in the hand(like Microsoft IE), is it possible making the code that is made in C or other languages a Plug-in? Cheers Brett