From the Editor-in-Chief of PowerBuilder Developer's Journal

Bruce Armstrong

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Top Stories by Bruce Armstrong

If you're familiar with the Database Binary / Text Large Object column type in PowerBuilder Classic (see Figure 1), you know it's a way of storing blob data associated with an OLE Automation application (Paint, Microsoft Word, Microsoft Excel) and then displaying it as part of a DataWindow. There were some limitations with the Database Binary / Text Large Object. It required the end user to have the application that was used to add the object to the database in order to view the data. It often didn't display the data well within the DataWindow. And it wrapped the data stored in the database with an OLE wrapper, making it difficult to deal with the data outside of the OLE Automation application used to store it. To address those issues, a new column type, called the TableBlob column, has been added to the WPF DataWindow. Like the Database Binary / Text Large Object ... (more)

Custom Common Dialogs Using SetWindowsHookEx

PowerBuilder contains a number of built-in common dialogs that can be used within your own applications. What do you do when one of these dialogs meets most, but not quite all, of the functionality you need? Do you simply accept the limited functionality? Do you write your own dialog from scratch to replicate them and add the additional functionality (a maintenance headache)? There is a third option. You can simply use the dialog that PowerBuilder provides and modify it at runtime to provide just the additional functionality that you need. The dialogs PowerBuilder provides includ... (more)

OLE - Extending the Capabilities of PowerBuilder

This two-part article provides a primer on OLE, some practical examples of its use, and demonstrates some methods for addressing the limitations of PowerBuilder's implementation of OLE. In Part 1 I provided some background information for OLE and discussed the use of custom controls, in Part 2 I talk about OLE Automation and OLE objects. OLE Automation OLE Automation is the interface through which one application (e.g., Microsoft Outlook) makes the methods, properties, and events of its objects (e.g., Folders, Messages, Address Book) available for use within another application... (more)

PowerBuilder – Have Your Cake and Eat It Too

As you may be aware, the company I work for does both PowerBuilder and RIA (Flex) application development. We actually create client/server and web-based front ends for the same application. Doing that has really emphasized just how much faster we can do development using PowerBuilder. Of course, we're originally a PowerBuilder shop, so one could argue we're faster using PowerBuilder because we know it better. But along comes a thread in the Adobe Flex Developers discussion groups on Linkedin with this heading: "I'm sometimes amazed at how unproductive [modern] development tools... (more)

Say Hello to PowerBuilder 12.5!

By the time you read this, PowerBuilder 12.5 should be released. Like several ".5" releases before it (i.e., 6.5, 10.5 and 11.5), this release is a major release with a number of significant new features. We'll have a number of individual articles in PBDJ that will dive into these new features in greater detail. Given the editorial lead time, I wouldn't be surprised if you've even read a few by the time you read this! For now though, I'd like to give a brief overview of what you'll see in this new version. PowerBuilder Classic Just to show that you haven't been ignored if you're s... (more)