This page is a collection of the available resources for DataFlex development.
It contains links to other websites and has a list of recommended books and magazines that contain information that may be of use for a DataFlex developer.
The selection is based on contents, _not_ products.
Please drop us a note, if you know of a valuable resource that is not listed in here, or in the case that you find a dead link.
Windows OS Related
MS SQL Related
Github and bitbucket pages
Data Access Worldwide
The official website of Data Access Corporation. They are the developers of DataFlex, Visual DataFlex and WebApp Server.
An excellent resource to consult if you encounter problems within the DataFlex language.
Developers of ORAFlex and SQLFlex. Direct Drivers for client server solutions with DataFlex using SQL servers, such as Oracle, Microsoft SQL, PostgresSQL and MySQL. Check out their support menu for useful tips when you use these drivers.
Starzen is a well known third party developer that offers many add-on tools such as pluspak! and publishes the Visual DataFlex Developers Journal. Besides this they also host a FAQ database on their website and a message board for their products.
A wiki for DataFlex Developers, this is the place to describe your findings with DataFlex and how you solved a typical DataFlex problem. After signing up you are allowed to make changes anywhere in the site. They use Mediawiki engine, so if you are familiar with wikipedia, you can already use it now. Go check it out! For the record, this site used to be called vdfwiki.com.
Frank Cheng is a well versed DataFlex Developer who knows a lot about the inner workings of DataFlex and the Windows API.
Erik shares a number of classes that he worked on over time. These solution are very high quality.
Brazilian site with controls for DataFlex developers.
Codejock framework by VdfSig
(web.archive link as original site went offline, project is ongoing though, but continues at the DAW forum, start with this "Where to download" post
, username/password in color.
Developer blog from Michael Salzlechner
Search engine that allows you to search in the history of the old News (nntp) based user groups.
Sture's public applications
VDF XRay etc..
Australian distributor of FlexODBC.
Unicorn Interglobal White Papers
(also check out their example applications area)
view database structure models
DataFlex discord server
FrontIoT ApS Scandinavia LinkedIn page about DataFlex
Johan Broddfelt blog
The DataFlex Subreddit
Title: Mastering Visual DataFlex
Authors: Michael Salzlechner, Stuart Booth and David Lisle, Publisher: Starzen Press.
Covers Visual DataFlex and windows programming. Topics: Object Oriented Programming, Deploying, Mouse, Drag and drop, Reports, external controls, Multimedia, bitmaps and cursors, writing a wizard, the DataFlex Database API, Resizing and locating, Floating menus and window styles and messages.
Title: Discovering DataFlex 2016
Author: Vincent Oorsprong, Publisher: Data Access Worldwide.
Basic programming in DataFlex 2016, Topics include: using the Studio, the datadictionary, deployment and the other tools in the product. They also walk you through some examples.
Links to websites of current DataFlex Usergroups are:
DataFlex Developers User Group
Mutual Support for Better DataFlex Applications
Australian & New Zealand Developers in all kinds of DataFlex
European DataFlex User Group Conference
The Dataflex International Software Developers Conference is usually held in Carson City, Nevada, USA
Scandinavian DataFlex User Conference
Link to presentation of previous conferences: Presentation Library
Your online resource for all the technical questions you may have about one of the windows Operating Systems or one of MS's products such as SQL Server.
This is also the place to be for your security updates
Microsoft Software Developer Network (MSDN)
Your online resource on development questions for the windows operating system. This site contains complete API descriptions and development examples and descriptions for most of MS their products. Examples of these are Visual Studio and IIS
Windows API guide
A site about programming the windows API for Visual Basic
Using DLL's with DataFlex
This document extends existing DataFlex documentation and provides basic information and suggestions on DLLs. The discussion is from the point of view of an experienced C/C++ and DataFlex programmer. DLL issues, however, cover a broad and advanced range, so this discussion is far from exhaustive
This site has source code in many languages such as C/C++, VB, Delphi, Assembler, Java, Pascal and much more.
The SysInternals Web site provides you advanced utilities, technical information and source code related to Windows 9x and Windows NT/2K internals.
The original dependency walker that is also supplied with the MS Visual Studio suite. You can use this tool to find missing or incorrect DLLs when having deployment troubles.
Internals.com has info about undocumented aspects of the windows operating system taken from a system developers point of view. The website as some very interesting articles and utilities to check out.
Windows OS Books
Title: Programming Windows
Author: Charles Petzold, Publisher: Microsoft Press.
Covers many topics in the windows environments. Topics include: the basics, dialog boxes, unicode, graphics, kernel, printer, dlls, multitasking, multithreading, MDI and programming the inter/intranet. Knowing a bit of C/C++ makes it much easier to read.
You can get a free subscription to the oracle magazine by subscribing at the link above.
Oracle Technology Network
A huge library for the Oracle products. The place to be for downloads, training and support. (download Oracle 9i from here if you want to test it)
The Internet Assigned Numbers Authority (IANA)
Dedicated to preserving the central coordinating functions of the global Internet for the public good.
IANA - assigned portnumbers
List with all assigned portnumbers
The Worldwide Web Consortium (W3C)
The World Wide Web Consortium (W3C) develops interoperable technologies (specifications, guidelines, software, and tools) to lead the Web to its full potential.
Website with valuable tips on how-to make your website viewable from within any browser
Qualys SSL Labs
Test your SSL certificates
Qualys Browser Check
Test the plugins in your browser
mxToolbox blacklist page
check email server
Check DNS server setup
The top 10 mistakes in webpage design for 2002
See if you recognize these design mistakes...
DataFlex 18 webapp videos at 28it