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The VDESRC Directory

In the VDESRC sub-directory you will find the Prolog source code for the Visual Development Environment.

You can compile this yourself by loading  VIP.PRG, or VIP16.PRG, or VIPOS2.PRG and selecting a Project|Build All. The result will be a new version of the Visual Prolog VDE placed in the sub-directory 0_EXE.

In this way you can do any customization of the VDE you want, or you can study how we have done things, appropriate tools and techniques for your own programs etc. It is a pretty big project, but the Code Browser should be able to assist you in studying the code. You should also know that this project was built before we had the code experts - many things are easier today.

You are also allowed to use some of the tools like the dialog editor or the Graphics Editor in your own projects.

Note that if you include the PDC Prolog compiler from COMPILER.LIB in your application, you need to obtain a special license agreement from PDC. In order to use the Prolog compiler in an application you do also need the PDC Prolog start up files and runtime libraries.