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Prestwood IT Newsletter May 2013 Issue - Paradox Edition


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Each month on or after the 1st, and only once a month, we will send you content from up to 5 community groups. If you select this Paradox group, you'll receive the following content below mixed in with the other groups you elect to include.

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  May 2013 - Paradox Edition (1709 of 4,795 subscribers receive this group's content.) Year 15 Issue 5  
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P9 Book: Power Programming topic (classic post):
Power: Chapter 11, Programming with Queries
by Mike Prestwood
Chapter 11, "Programming with Queries" from Paradox 9 Power Programming by Mike Prestwood.

Interactive Paradox: Reports topic (classic post):
A 10 Minute Paradox Reports Quick Start
by Mike Prestwood

Paradox has a built-in report writer that will suffice for nearly all reports you wish to create. You base a report on one or more tables or on a query. It uses a banded approach so you think in terms of records, pages, and report. Except for the record band, each section has a header and a footer. Paradox also offers a quick report which is useful for printing data quickly.

 Monthly Paradox Lesson
Installation, Setup, & BDE Topic:
Code Snippet of the Month

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

Paradox Tables Topic:
Definition of the Month: Paradox Net Dir

The directory location of the Paradox network control file PDOXUSRS.NET. The active NET DIR parameter is stored in the Paradox section of the BDE configuration file and has precedence over any other NET DIR parameters that may be stored in older 16-bit configuration files, or in the System Init section of the current configuration file, or in the Registry. These other NET DIR entries will have no effect. To access a Paradox table on a network drive, the active NET DIR parameter in the Paradox section of the BDE configuration file must point to a network drive and folder in common to all users.

ObjectPAL Coding Topic:
Download of the Month: psSendMail DLL
Easily send e-mail directly from your custom applications. Works with all 32-bit Windows development environments and includes Paradox, Access, and Visual Basic examples.
Paradox & ObjectPAL Topic:
Resource Link of the Month:
This website is many things to many people.  The members of the community use the community for a wide range of purposes.  Some people come here to get technical support, others come here to share ideas.  Some people just like seeing their name in lights. 
Tool Basics Topic:
Question: Whats new in Paradox 13? My Paradox Version is 9 Developer. Is it right what Paradox 9 forms are not compatible with Paradox 13? Is there anything else happens?


[answered by Mike Prestwood] Paradox version 11 shipped with WPO X2 and Paradox 11 with SP2 ships with WPO X3 and WPO X4. Paradox 11 is essentially the same as Paradox 10 with NO NEW features (minor defects and compatibility issues were resolved). There is no Paradox 12, 13, or 14. Currently Corel states that Paradox is in maintenance mode (meaning no new features are planned).

As for your Paradox 9 forms, you can simply resave them and/or redeliver them in the new version. If you used the Application Framework in 9, it's not in 10 nor 11 so you have some work to do.

OPAL: Language Basics Topic:
Tip of the Month

The syntax of object.method() is consistent throughout ObjectPAL. If an object with the name box has code on its mouseClick event, you can access that code with box.mouseClick() method from any other object. When this code executes, the UIObject method mouseClick() calls the mouseClick event.

How do you know when you can call the code in a built-in method of an object? Easy, if the run-time library has a method equivalent, then you can use itfor example, mouseClick() and pushButton().

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