Programming

There's been a lot of talk about the speed improvement in Delphi 10.4.2. Indeed, I've felt it is snappier as well so I thought I'd run tests on my own projects and see how they fared

My results were less impressive than other speed tests...

I'm writing a book about cross-platform development with Delphi and in one of the chapters that covers accessing phone features, such as the camera and location services, the demo app I present stores a list of parks with a name, picture, and coordinates for each. I put the list of parks on the first tab and a picture along with an edit box for the park name on second tab.

I somehow managed to interrupt the slide transition two-thirds the way through, leaving a funny display on the screen.

Installing and upgrading Delphi is a pretty big task. With support for eight platforms, a dozen different databases, multiple web services and servers, a rich run-time library, and an ever increasing array of programming tools and IDE productivity aids, I'm in awe that for the most part, the process is fairly smooth. I'm sure there are those still on Windows 8.1 or older or have machines with limited memory and slow hard drives that bemoan the time it takes or incompatibilities they encounter.

I didn't write here much about the release of Delphi 10.4 Sydney but I've been using it almost exclusively for the last several months and have upgraded all projects I could to the latest and greatest version. It really is an amazing environment and continues to get better.

I do almost all of my development from virtual machines. I use VMWare Workstation Pro for this and it has served me well for many years. I like the snapshot and cloning aspects plus being able to move a machine to a different drive, back it up, and even put it on my in-office Windows server and free up local memory and hard drive space.

As I've done this a number of times, there are some steps that I replicate on every machine for consistency and convenience. Everyone will have their own way of doing things and favorite tools--these are mine.

I try not to make too many public comments about issues that frustrate me, especially when they pertain to a product I use and support. But Embarcadero has another "offer" to buy or upgrade Delphi (or RAD Studio) that just makes me angry all over again.

Delphi 10.3 Rio has been out for awhile now, in fact, I recently installed the second update, so this post is a little late to the party but I thought I shared my thoughts anyway.

I needed to reinstall Delphi 10.2 recently and when I did, I finally decided to check the box that asks if you want to hook up a source code repository. I've always managed source in repositories outside of the IDE, but decided to see if and how much productivity improvement could be had it was built in with the project manager. I use Git so selected the installed git-cmd.exe file when prompted.

Way back in 2000, InterBase 6.0 was made open source. Soon a fork was made in the code and Firebird SQL was born. I started using this new powerful database engine and as InterBase went back to being a closed-source product, stuck with the free version or used other database engines. Many tools and Delphi component sets still support both IB and FB as they are still quite similar.

I work on a variety of projects in several different versions of both Delphi and Visual Studio. A lot of these projects also include database access. To support all these different projects, a lot of different tools need to be installed and with each comes a set of paths that are setup for the applications to find libraries, support tools, and so forth. Since most software tools can also generate both 32-bit and 64-bit code these days, there are often two sets of paths for each type of compilation.

Delphi has come a long ways since it was first released in 1995. It now compiles 32-bit or 64-bit, still creates console or Windows applications but now also can create Android and iOS apps if you have the FireMonkey library and cross-platform tools, you can create Android and iOS apps.

As an independent software developer, I make my living writing scripts and applications for others. In order to maximize my opportunities, I need to be a master of many environments. Since much of my career has involved Windows applications, I am spending quite a bit of effort in other areas.

Having worked in Delphi for many years, I've seen the development tool and it's RTL evolve significantly, yet remain resilient in backwards compatibility. Early on, to prevent your application from running multiple times, there were generally two different approaches:

1. Search for the name of your app's main form by name, or
2. Search for a "mutex" created by your app.

Why is it that when companies have a good thing, they have to go mess it up by changing its design? I've seen this in many different industries but since change happens so much more quickly in software, I seem to be annoyed much more often with changes in user interface.

A friend of mine runs a business selling a Windows application for a niche market. Of course he has a web site with lots of information and a way to download a trial of his software and then pay and register it. Since he's a technical person, likes writing code, likes to keep overhead low, and his needs are fairly simple, he wrote the registration program himself. He's most fluent in Delphi so it was natural to write the registration program in Delphi--an old, but very functional Delphi 2007.

Some of my blog entries are just to remind myself how to do things later--and on several occasions they've been useful in that regard. I hope they are also useful to others that may encounter similar struggles. This is another one of those articles which I will likely refer back to at some point.

I'm a long time Delphi user and have taken advantage of the Object Repository quite a bit. It's really handy to take a unit or project that might be useful somewhere else but in a slightly different form and add it to the repository. Later, when you need to use that bit of code, you can select it from the repository right from within Delphi and it will make a copy of that code in your new project.

Several months ago, I posted a question about developer tools and felt I was at crossroads of sorts. The choice to move away from what is familiar is never easy, but I felt stronger about taking a hard look at the future of how I would approach software than I had in the past.

When I was in college heading for a degree in Computer Science, I wondered why I needed History or Psychology or English or Art. Hadn't I had enough of that in high school? Why couldn't I just take fun stuff like Assembly Language or Advanced Data Structures? My parents tried to tell me about well-rounded education, how important professional communication is, and the benefits of knowing about the world around me, but it was hard for me to put much more than the minimal effort required to get the grades in those "non-essential" classes.

I've used Pascal-based compilers for a long time. Similar to many others like me, I started with Turbo Pascal 3 in the 80s, embraced object-oriented extensions in Borland Pascal, attempted to understand OWL but quickly moved to Delphi when it was released, and now churn out blazing database applications on the latest Windows operating systems using internet technologies, advanced reporting tools, and multiple third-party component sets. Sure, I've dabbled in other languages such as C/C++, Visual Basic, .NET with C#, and some scripting languages, but Delphi has been the bulk of my experience for the past 17 years or so.

My blog about HTML5 Builder has been elementary and positive so far. But I've had problems--I just haven't mentioned them yet. Well, it's time to do that before going further. I'm using the product on two different machines and am having two different experiences.

While still working with a PHP web server application, let's create a simple component, install it, and modify the Hello World app to use it.

The first application I'll create will be similar to sample ones I had tried in RadPHP. They were simple PHP tutorials and they worked--somewhat. I had some issues, but don't remember whether it was getting all the right libraries in the right place or whether it worked from some locations or browsers or what. In any case, I'm hoping HTML5 Builder will make the process a little smoother.