Cross Ref > Tool Basics

To deploy a Paradox application, you need to deploy either the full version of Paradox or the Paradox Runtime both of which will include the BDE as well as any dependecies you've added such as psSendMail DLL, ezDialogs, etc.

Corel Paradox for Windows (was Borland Paradox). Also, Borland used to offer a Paradox for DOS tool which support it's Paradox Application Language (PAL) which is not compatible with ObjectPAL. The biggest drawback to Paradox is that Corel does not have anyone at Corel actively developing Paradox for Windows (as opposed to Microsoft Access which does).

 ObjectPAL Development Tools

Many developers just use a text editor. There are JavaScript editors available including 1st JavaScript Editor, Antechinus JavaScript Editor Professional, and SplineTech JavaScript Debugger PRO.

Paradox for Windows has two primary file types: source files and delivered files:

Source Files
Source files in Paradox are binary but can can be opened in later versions of Paradox and even in earlier versions if you don't use any new features.

• .FSL = Form
• .RSL = Report
• .SSL = Script
• .LSL = Library

Since Paradox source files do not compile to an EXE, Paradox developers tend to use a startup form or script to start the application.

 ObjectPAL File Extensions  

.js is the common standard for browser-side JavaScript and .jsp is the common standard for server-side JavaScript.

Language Overview: Object based language. Although ObjectPAL uses object oriented techniques "under the hood", it is not object oriented. Although you cannot create classes, ObjectPAL has built-in objects you can use in your code. You code in a traditional approach attaching code to objects or within a script. Most Paradox applications are form based. You may have a short startup script but you design forms and reports and tie them together with a common form. You can store reusable code such as custom methods and procedures in a library.

Target Platforms: Corel Paradox is most suitable for creating business desktop applications that run within Corel Paradox for Windows.

Language Overview: Class-like language with limited but usable class-like and object-like functionality but no formal inheritance nor visibility control, etc.

Many developers are hoping the next version of JavaScript will be a fully OOP language. If you're a working OO developer and need to use JavaScript in an OO manor now, there are many books that help you simulate OOP. One such book we recommend is Pro JavaScript Design Patterns.

Target Platforms: JavaScript is most commonly used to extend HTML by executing code on the browser side when visiting a website. It does have other uses including server side scripting and AJAX.

Paradox offers a built-in reporting tool that will suffice for most desktop database applications.

No built-in report writer but because JavaScript most frequently targets website development (a document interfaced GUI), a common solution is to simply output an HTML formatted page with black text and a white background (not much control but it does work for some situations).