The Latest

DevX - Software Development Resource

Optimizing Design: Cache and Reuse

Use Cacheache is a small temporary storage area of the hard drive where browsers keep files while they display them. Any file that is in the cache can be displayed

DevX - Software Development Resource

XML Concepts

sing XML for Web pages is just the tip of the XML story. With XML you can store information about your documents and pieces of your document. You can then

DevX - Software Development Resource

XML in Action

n this section we’ve begun a dialogue with some people who are on the leading edge of XML within the Web environment. We’re profiling these people, their projects, and their

DevX - Software Development Resource

XML Applications

o what can behaviors do? By using XML we can link behaviors to any element in a Web page and manipulate that element. We can, for example, copy that element’s

DevX - Software Development Resource

XML DTDs

alid XML documents follow a set of rules defined in a associated DTD. This Document Type Definition defines elements, attributes, and relationships between elements. DTDs are saved in an ascii

DevX - Software Development Resource

JavaScript QuickStart: Next Steps

etting Your Hands DirtySo, now you have a basic understanding of JavaScript and what it can do. If you’re reading this, you’ve probably decided that you want to learn more

DevX - Software Development Resource

Copyrighting

Disclaimer: Please remember, that, although this information is up-to-date and accurate, we are not attorneys, and this is not legal advice. If you have a question that requires legal advice,

DevX - Software Development Resource

Using Web Color

raphics are a common way of bringing color into a Web site. Your create your images using your favorite editor, test your color palette on different browsers/platforms, and drop the

DevX - Software Development Resource

Audio QuickStart: Common Formats

here are many sound file formats to chose from. The format you pick will depend on your what your audience can use and the types of sounds you have. You

DevX - Software Development Resource

Editing Sounds

diting your sound can be one of the most exciting parts of creating sound for the Web. Download an audio editor and start playing around with it?you’ll see fascinating options

DevX - Software Development Resource

Audio QuickStart: Steps for Using Sound

teps for Using SoundThere are three steps to consider when you think about adding audio to your site: First, how will you create the sound? Before you add a sound

DevX - Software Development Resource

Audio by Example

hese are some sites from around the Web that in some way make interesting use of sound. We tried to find a variety of techniques. Some require a plug-in, while

DevX - Software Development Resource

Going to Extremes

xtreme Programming (XP) is not some nerd bungee jumping off a bridge with a laptop. It is not a geek writing code while doing back flips on a skateboard. Nothing

DevX - Software Development Resource

Speed Up Rendering

s an ASP programmer, you are no doubt focused on improving the performance of your Web application. You are probably busy improving your database access performance as well as the

DevX - Software Development Resource

Atn2 – Arc tangent of Y/X

‘ arc tangent of Y/X – returns values in all four quadrantsFunction Atn2(x As Double, y As Double) As Double If x = 0 Then Atn2 = Sgn(y) * 1.5707963267949

DevX - Software Development Resource

Cot, Sec, Csc – Missing trig functions

‘ Cotangent of an angleFunction Cot(radians As Double) As Double Cot = 1 / Tan(radians)End Function’ Secant of an angleFunction Sec(radians As Double) As Double Sec = 1 / Cos(radians)End

DevX - Software Development Resource

Cycle Through Your Visual InterDev Windows

When you have multiple windows open in your Visual InterDev developer’s environment, it is easy to lose track of where they all are. Rather than trying to park the windows

DevX - Software Development Resource

Creating 30-Day Trial Applications

Question: I am Web site developer assisting a Visual FoxPro developer in distributing his creation via the Internet. He wants to create a 30-day trial version for distribution in this

DevX - Software Development Resource

Giving Users a Save As Dialog Box

Question: I am creating a CSV file from a table via the export command and would like to give the user the option to name the CSV file at execution

DevX - Software Development Resource

FoxPro Commands and the ODBC Driver

Question: I’m trying to set up an SQL call (in ColdFusion) to a program (TESTOUT.PRG) that uses the FoxPro COPY TO command and user-supplied parameters to output the desired file

DevX - Software Development Resource

Data Rollup

Question: I have a table containing records collected at variable times. How do I “roll up” the data to average over 15-minute periods in a query? Answer: I think I

DevX - Software Development Resource

Flipping Rows to Columns

Question: How can I select rows in a table and output them as columns in a resulting table? In other words, I need to “flip” my rows to columns and

DevX - Software Development Resource

Tools for Documenting Class Libraries

Question: Is there a third-party tool that can be used to document VFP Class libraries and their components? Answer: VFP’s Re-Engineering wizard can move your classes to Rational Rose and

DevX - Software Development Resource

Prompting After Setup.exe Runs

Question: Is there a way to prompt an end user to restart his machine after running the setup program to install my software? (I am developing in VFP 3.0 under

DevX - Software Development Resource

Using C++ for AIX Unix and Windows NT

Question: We are looking at Visual Studio 6 as a development platform. Studio 6 contains Visual C++, Java++, and VB version 6. Can I use this development platform to create

DevX - Software Development Resource

Using Auto_ptr with Arrays

Question: Can auto_ptr be used to hold a pointer to an array of objects? For example: auto_ptr p = new int[10]; When auto_ptr is destroyed, will it call the correct