The Oregon Delphi User Group is a community-sponsored group of Delphi developers and enthusiasts in and around the Portland, Oregon metro area. We offer periodic meetings presented by leading developers, authors, and community members who graciously share their experiences with the group and focus on the Delphi Integrated Development Environment and related technologies.

One Application, Many Different Development Environments - Part I

09/23/2013 6:00 pm

Delphi, C#, Oxygene, and JavaScript

Since programming languages were invented, people have tried to use one code base to get an application to run on multiple platforms. Whether it meant building custom compilers or interpreters for each platform (BASIC, C, JavaScript, Python), or writing an API layer for each device that talks to a generic module (Java, .NET), the goal has been to reduce the time it takes to develop a product while having it work for as wide a market as possible.

So why then, would someone want to write one application in as many different programming languages and environments as possible? For exploration and learning, of course!

It's easy to find tutorials with examples of "Hello World!" in every language. The program we'll be looking at tonight is a little more involved, enough to actually be useful and learn something. It's a one-form application with some buttons, a ListBox, and some string manipulations, just enough to make it interesting, but not too much so we can't get through it in an evening. (A more involved application is slated for early next year.)

The first environment we'll explore will be Delphi, of course. This will introduce the project's concepts and give a base of expectation for the succeeding examples. The application was originally conceived in Delphi 1, but has been upgraded and a few language enhancements made so it now uses Delphi 2010.

Then we'll move into Visual Studio using C#. There we will explore two varieties, one using WinForms (the first GUI available in .NET, but now deprecated), and one using WPF (Windows Presentation Frameworks, the current recommended way to build .NET apps). Both of these variants were created in Express 2012 for Desktop version of Visual Studio.

Next we'll use Oxygene, a Pascal compiler inside Visual Studio, using WPF and compare with both the C# version and the original Delphi versions.

Finally, we'll explore a web version of this program written in HTML5/JavaScript.

Look for mobile devices (Windows, Android, and iOS) to be supporting this same application in November!

General Discussion

06/10/2013 6:00 pm

TOPIC

General discussions about technology, the state of Object Pascal, and future meetings.

LOCATION

Fanno Creek Brew Pub
12562 Main Street
Tigard, OR 97223
(503) 624 9400
(Link to map)

Introduction to Arduino

05/13/2013 6:00 pm

TOPIC

"Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments."

Sounds like fun? There are several of us Delphi developers that are interested in this technology and one of our members has offered to share his passion for electronics, give us a hands-on demo, help us get started playing with this technology, and teach us a little of what you can do with it.

In Persuit of Development Clairvoyance

04/08/2013 6:00 pm

TOPIC

As web technologies become more robust and the interfaces more rich and user-friendly and as a plethora of computing devices in every size and price range fill our lives, there is a race in the industry to become a major vendor of development tools to build applications for these various computing platforms. It seems that everyone is touting theirs as the one solution you need to cover all devices, minimize development effort, and provide the best experience for the users of your software.

FireDAC

03/11/2013 6:00 pm

TOPIC

On February 5, Embarcadero announced the purchase of a popular third party data access component library named AnyDAC. They have rebranded the library FireDAC for consistency with their new FireMonkey brand, although FireDAC doesn’t rely on FireMonkey in any way. FireDAC ships with the Enterprise, Ultimate and Architect SKUs and may be purchased by Pro users as a component pack. In the end, this appears to be a replacement of the dbExpress stack that Embarcadero has previously developed internally. As a result it’s a very significant change in direction for the company.

OnDrawCell

02/11/2013 6:00 pm

TOPIC

One of the advantages of using modern development environments such as Delphi is to hide the complexities of displaying controls on a form. Simply place a button or a grid or a label on your form and it looks and behaves like a button or a grid or a label should without any special work. But what if you need to do something that is not covered by the standard set of properties? What if you need to place a bitmap or draw a line or join some cells in a way not supported natively by the control? In some cases, third-party libraries provide just what you need, but in others, you have to do it yourself.

Fortunately, the Windows controls on the Delphi tool palette are simply wrappers around Windows objects and the API to control them is easily accessible.

This is nothing new. Since Delphi 1, developers have been able to explicitly dictate every aspect of a control's look and feel if they are willing to dig down just under the surface by setting a property or two and hooking into an event.

Tonight, we'll show a real-world application that manipulates a StringGrid to combine cells, color them, and fill them with data. We'll touch on a few other controls as well and explore the technology a bit to help you break through the mysterious barrier of the Canvas and how you can Paint on it!

HTML 5

01/14/2013 6:00 pm

TOPIC

For many projects today, it is not enough to work in Delphi. Projects extend to the web. At our January meeting we'll be exploring how to work with HTML, with an emphasis on the newly-approved HTML 5 standard. Our vehicles of exploration for this presentation will be Delphi and HTML5 Builder. We'll look at what works - and doesn't - with these Embarcadero tools. There will also be an open discussion of people's favorite HTML editor.

Tales from the Scrypt!

11/12/2012 6:00 pm

TOPIC

Yes, this is a word play on "Tales from the Crypt" and will be a fun meeting where we share horror stories in coding. Bring your experiences of programming gone awry, the unbelievable code you've been handed, the strangest bugs, or the most unbelievable deadlines imposed on you and the terrible consequences that resulted. We will commiserate together and laugh at what the sales people in the organizations we work for have tried to do to us or ponder about what the previous programmer must've been smoking when s/he wrote the code we're trying to debug.

Document Your Code Using XMLDoc

10/08/2012 6:00 pm

TOPIC

Many people do not know, and fewer still actually use, a nifty feature which appeared in the Delphi IDE a few years ago: built-in XML Documentation for your source code.

At this month's meeting, we'll show how to turn it on, how to use it, and how it can enhance developer productivity, especially if you are sharing libraries or have several units to which you are constantly referring to for reviewing a type or method. There are very few articles on this subject, so come take advantage of the presenter's research and be more productive right away!

RAD Studio XE3 Tour!

09/05/2012 6:00 pm

TOPIC

Exciting new versions of Delphi and RAD Studio are coming soon. Be among the first to see what’s new in Delphi XE3 and in RAD Studio XE3 – including Delphi, C++Builder, Prism, InterBase and new HTML5 Builder at one of these free, live, launch tour events.