Tip Bank

DevX - Software Development Resource

Local Classes

A class can be declared inside a function or a block. In such cases, it is not visible from anywhere else, and instances thereof can only be created within the

DevX - Software Development Resource

Sensing Browser Type

You can easily find out the browser type, version, and sometimes the operating system that your visitors are using by checking the userAgent and appVersion properties of the navigator object.

DevX - Software Development Resource

Unmatched Query

Question: When one is working with large amounts of data, what is the quickest way of displaying rows not found when comparing two tables, without doing the following: SELECT table1.field1

DevX - Software Development Resource

Using ActiveX controls in PowerBuilder 6.0

Question: I would like to know how to find information(books, online documentation) on using ActiveXcontrols in PowerBuilder. Answer: I find the best way to learn how to use a new

DevX - Software Development Resource

Using Animated GIF

Question: Can I use an animated GIF in my application? Answer: There is no simple way to use animated GIFs inside of PowerBuilder. However, there is a way that you

DevX - Software Development Resource

Microhelp and the Status Bar

Question: I’ve heard that the MDI Frame status bar can be subdivided so that multiple messages can be sent there. The only two methods of manipulating the status bar that

DevX - Software Development Resource

Tab Control

Question: I have a popup window with tab control (four tabs). I need to specify at open time which tab page gets control. It always opens tab 1 no matter

DevX - Software Development Resource

Local External Functions

Question: Instead of distributing a user object (and its functions) as a PBD, I want to distribute it asa DLL (build runtime library, machine code),and then access its functionality in