The Perl language gains popularity daily among programmers from all over the world because of its flexibility, vast sphere of application, and easy source-code availability. The Comprehensive Perl Archive Network
ou create an “owner-draw” ListBox or ComboBox when you want to bypass the control’s automatic item display in order to do something special, such as display an image for each
ll graphical user interfaces, including Windows, make excellent use of the mouse. One way that the mouse can be used is drag-and-drop, the ability to initiate some action by dragging
As developers, we are trained to look at workflows, trends and needs, perform an analysis of our own personal experience, and recognize repetitive actions that could benefit from automation. So
he indisputable appeal of Web services will drive most organizations to evaluate development platforms such as .NET. However, security concerns have always made organizations reluctant to embrace new technologies. Fortunately,
oogle has introduced a Web API service that enables developers to program search engine functionality into their applications. With the Google Web APIs service, a program can query more than
SQL Server triggers are a powerful feature, yet they often take a backseat to stored procedures and user-defined functions?a fate they don’t deserve. A trigger can provide an easy-to-implement solution
The music industry is terrified of the Internet, which it perceives as a loosely controlled world where consumers freely distribute the content in which they have invested millions. The success
JDK 1.4 adds a number of advanced features related to I/O and filesystems. The more advanced I/O features are often non-portable or only partially portable. File locking is one of
cripting languages exist because some programming tasks are both simple and important, and carrying them out with a language that doesn’t tax the mind as much as a system programming
ith the increasing use of distributed systems, users often need to access multiple resources to finish a single business transaction. Traditionally, users have had to sign on to all these
lthough .NET makes some things more complicated, launching external programs is not one of them. In classic VB, you used the Shell function to launch an application when you passed
When was the last time you used the ASP.NET DataGrid control with something other than an ADO.NET provider? Chances are, like many developers, you haven’t. The DataGrid control has such
erhaps the most popular Java open-source tool available today is JUnit. Originally developed by Kent Beck and Eric Gamma for use in Extreme Programming, JUnit has rapidly become a standard
Extending and Embedding Perl by Tim Jenness and Simon Cozens explains how to expand the functionality and usefulness of the Perl programming language and how to use Perl from C
n this article, you’ll explore one of the most interesting types of XQuery expressions?the FLWR expression, and see more detail on element constructors. XQuery provides FLWR expressions for iterating over
ou can find a quick introduction to the XQuery language with examples of several kinds of XQuery expressions in Part I of this series. In this part you’ll explore some
hen you program with event-driven languages, users typically see an interface containing controls, buttons, menus and other graphical elements. After displaying the interface, the program waits. What happens next depends
ver the past few years, XML has rapidly gained popularity as a formatting language for information, finding constituencies in both the document-centric and data-centric worlds. The explosive growth of XML-based
his is the final part of the four part series on Xquery. In this final section, you’ll see an explanation of conditional and quantified expressions as well as a quick
he Mozilla browser, developed as an Open Source project under the auspices of Netscape/AOL, is a nearly complete rewrite of the now ancient Communicator 4.x browser suite. In this article
When the DNS service has stopped, use this code to start it automatically. #! /bin/bashdns_pid=`ps -ax|grep “named -u named” |grep -v grep |awk ‘{print $2}’`if test “x$dns_pid” = “x” ;
here are a number of ways to integrate disparate applications across the enterprise. With the introduction of new standards and products, an architecture can take on many different implementations. Which
Starting with Office 2000, Microsoft began migrating their document structure types away from proprietary binary formats and towards XML. With OfficeXP the process was completed for Excel and greatly matured
ne major advantage of the Windows operating system?and most other operating systems for that matter?is that it provides all programs with a similar user interface. A program’s menu, for example,
ava applets can be embedded into a Web page to produce colorful, interactive Web sites. In this article, you will learn to write Java applets that load images and play
o one likes to wait, especially your customers. If you can’t keep them satisfied, your competitors will. This leads many developers to spend countless hours trying to optimize the performance
or years, “System.out.println” seemed to be the only choice Java developers had for logging; there was no standard logging API in the Java SDK and no widely accepted third-party logging
pplications often need to propagate changes to data to synchronize the state of objects in an application, particularly in user-interface applications where multiple windows can reference the same data. In
icrosoft created BizTalk Server to address the applications and systems integration problems that businesses face. Redmond used XML as the common platform for data translation, process definition, and communication. The