Convenient list to decide what to put in your version control system: Delphi File Extensions – Delphi Programming.
–jeroen
Archive for the ‘Delphi XE2’ Category
Which Delphi extensions to (not) put in version control: Delphi File Extensions – Delphi Programming (via Delphi.wikia.com)
Posted by jpluimers on 2014/12/10
Posted in Delphi, Delphi 1, Delphi 2, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 3, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Delphi 8, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Software Development | Leave a Comment »
Book review: Delphi Cookbook by Daniele Teti, Packt publishing
Posted by jpluimers on 2014/12/01
After speaking on EKON 2014 and ItDevCon 2014, the last month has been extremely busy on both the work and family side of things.
So it took longer to write my review of the Delphi Cookbook by Daniele Teti, Packt publishing (ISBN 978-1783559586).
Before the review, first two ways to see for yourself if you’d like the book:
- The Amazon page for Delphi Cookbook has a Look Inside option to view about 80 pages.
- The Packt page for Delphi Cookbook has a Free Sample option to view about 70 pages, and a code listing download (which also contains the errata).
Daniele Teti has a Table of Contents on the page where he introduced his book, but that ToC is a bit poorly formatted, so I included a better formatted one below.
Some other reviews of the Delphi Cookbook also make an interesting read (I read them after writing my own):
- Simon Stuart: OTAPI – Book Review – Delphi Cookbook by Daniele Teti.
- David Millington: Review: Delphi Cookbook by Daniele Teti.
Before the review a disclaimer. I bought the eBook version before Packt publishing asked for reviewers. They sent me a paper copy for free (which somehow took 2 weeks to arrive). I read about 25% of the book before the two European Delphi conferences, and the rest over the last two weeks.
The Review
I’ll try to keep this to the point, as too much detail would be killing. And I’m not writing a book here (:
So lets start with what I like:
- Writing style: most of it is very pleasantly and encouraging to read.
- Structure
- introduction – short description of the aim
- how to do it – step by step explanation to get an example working
- how it works – explaining the crucial parts of the example
- there’s more – revealing more details and providing background information
- Explanation where recipe deviates from best practices
- Mix of topics
- Fresh and surprising examples
- Building the examples on (relatively) new language and library features without distracting the examples: I was positively surprised about every other example how well Daniele did this
- For Delphi features in the book introduced in a specific Delphi version mentioning this version
- Keeping a variety of topics throughout the book, while still building up on previous sections during the book
I want to stress the last: Daniele Teti did an excellent job on this.
When writing a book or teaching material, it is hard to strike balances between the kinds and diversity of topics, the depth and order of the topics, and choosing between what to cover and how to cover it.
The way the chapters a built together with a variety of interesting topics per chapter, a great mix of chapters, and the various topics building (but not too much relying) on previously covered topics is really great. The whole book shows that Daniele is a great teacher. Well done.
Then a few things I dislike:
- Chapter 1
- The first chapter has a few VCL topics that could have been explained better. I have the feeling those were the initial writing chapters, and Daniele and the reviewers were still settling down on a routine. Shortly after that, the book gets much much better: like hearing Daniele doing a talk on a conference.
- Code formatting
- Especially in the eBook, the code is poorly formatted. There are enough tools to to a properly formatted example code export from Delphi, so this should have been done much better.
- Proofreading
- There is still a quite a bit of non-English idiom and sentence structure in the book. This can be distracting. The reviewers and editors should have done a better job on this.
- Security
- Even though explaining SQL injection, the book does not talk about any other kinds of injection. Since there are many examples of clients and servers passing parameters by strings, there is virtually no error checking. This is bad, as exactly those kinds of parameter passing can make for very vulnerable applications.
- Hard coded Delphi XE6 links
- most of the Embarcadero web site allows you to link to topics in a non-Delphi version speficif way
- Some “there’s more” portions are a bit thin
- I know this is a trade off: so few pages, to much to cover. But still (: Maybe Daniele finds time to write a series of blog posts on the “there’s more” portion.
- Cleanup without doing try..finally
- Way too few programmers value the try..finally construct (Delphi, C#, and many other languages) so this should be the cornerstone of every resource cleanup example.
The dislikes are minor compared to the likes, so here is the…
Verdict
I didn’t buy the book by accident: knowing the presentation and teaching style of Daniele, I was expecting a nice mix of topics explained in a light and fun way. The book surpassed those expectations by far.
So any Delphi programmer should buy this book. If not for using right now, then for getting some ideas, and reading the various topics later.
Below some suggested combinations for using this book various Delphi audiences.
Audiences
Starters
Buy this book. It gets you inspired, even if only some of the topics are suited for real beginners. Then get the books below, read them and get back to the Delphi Cookbook for more inspiration:
- The free German Delphi Starter book from Delphi-Treff (yes, Germany is not the primary language for a lot of you, but this book is very well written) which covers covers introductory topics in a very nice pace.
- The paid Delphi XE2 Foundations by Chris Rolliston.
- The free Delphi Essentials eBook by Marco Cantù. Though more than a decade all, it is still a good book for starters. By now you can get the electronic version of the book at CodeCentral.
Average Delphi users
Buy this book. Consider buying Coding in Delphi by Nick Hodges.
Advanced Delphi users
Also read Coding in Delphi by Nick Hodges.
Delphi gurus
I know few people that master all Delphi topics well (I’m not one of them: especially on the mobile side I’ve still a lot to learn). Even for gurus, I think this is a nice book, especially considering the price.
–jeroen
Table of Contents
Chapter 1: Delphi Basics
- Changing your application’s look and feel with VCL styles and no code
- Changing the style of your VCL application at runtime
- Customizing TDBGrid
- Using the owner’s draw combos and listboxes
- Creating a stack of embedded forms
- Manipulating JSON
- Manipulating and transforming XML documents
- I/O in the twenty-first century – knowing streams
- Putting your VCL application in the tray
- Creating a Windows service
- Associating a file extension with your application on Windows
Chapter 2: Become a Delphi Language Ninja
- Fun with anonymous methods – using higher-order functions
- Writing enumerable types
- RTTI to the rescue – configuring your class at runtime
- Duck typing using RTTI
- Creating helpers for your classes
- Checking strings with regular expressions
Chapter 3: Going Cross Platform with FireMonkey
- Giving a new appearance to the standard FireMonkey controls using styles
- Creating a styled TListBox
- Impressing your clients with animations
- Using master/details with LiveBindings
- Showing complex vector shapes using paths
- Using FireMonkey in a VCL application
Chapter 4: The Thousand Faces of Multithreading
Synchronizing shared resources with TMonitor
Talking with the main thread using a thread-safe queue
Synchronizing multiple threads using TEvent
Displaying a measure on a 2D graph like an oscilloscope
Chapter 5: Putting Delphi on the Server
- Web client JavaScript application with WebBroker on the server
- Converting a console service application to a Windows service
- Serializing a dataset to JSON and back
- Serializing objects to JSON and back using RTTI
- Sending a POST HTTP request encoding parameters
- Implementing a RESTful interface using WebBroker
- Controlling remote applications using UDP
- Using App Tethering to create a companion app
- Creating DataSnap Apache modules
Chapter 6: Riding the Mobile Revolution with FireMonkey
- Taking a photo, applying effects, and sharing it
- Using listview to show and search local data
- Do not block the main thread!
- Using SQLite databases to handle a to-do list
- Using a styled TListView to handle a long list of data
- Taking a photo and location and sending it to a server continuously
- Talking to the backend
- Making a phone call from your app!
- Tracking the application’s life cycle
Chapter 7: Using Specific Platform Features
- Using Android SDK Java classes
- Using iOS Objective-C SDK classes
- Displaying PDF files in your app
- Sending Android intents
- Letting your phone talk – using the Android TextToSpeech engine
–eof–
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Posted in Delphi, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Software Development | 5 Comments »
Delphi version and Build numbers
Posted by jpluimers on 2014/12/01
Every vendor should publish version numbers like this to make it easier for their customers to check if they are current or not.
I can’t promise to have a complete list, or the latest versions, but I will update with the versions I have used.
- Delphi XE
15.0.3953.35171 = Update 1 - Delphi XE2
16.0.4504.48759 = Update 4 HotFix 1
–jeroen
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Posted in Conference Topics, Conferences, Delphi, Delphi XE, Delphi XE2, Development, Event, Software Development | 8 Comments »
Default comparers in Delphi used by TArray.Sort (via: Stack Overflow)
Posted by jpluimers on 2014/11/26
A long while ago, I posted a detailed answer on what functions the default comparers actually were calling to get a feel for if they would apply or not answering delphi – What does the default TArray.Sort comparator actually do and when would you use it? – Stack Overflow.
I needed that information recently because of some sorting issues I bumped into (sorting generic records), so finally a blog post.
First some links to documentation for even more background information:
- System.Generics.Collections:
– TArray.Sort method. - System.Generics.Defaults:
– IComparer interface with the Compare method.
– IEqualityComparer with the Equals and GetHashCode methods.
– _LookupVtableInfo.
– BinaryCompare.
– BobJenkinsHash.
– TOrdinalIStringComparer. - Generics Defaults TComparer (Delphi) – RAD Studio Code Examples.
There is the answer I gave: Read the rest of this entry »
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Posted in Algorithms, Ansi, Delphi, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, Encoding, Floating point handling, Software Development, Unicode | 2 Comments »
Signing your Delphi executables with a digital certificate.
Posted by jpluimers on 2014/11/25
Using Delphi build-events (see my post Delphi prebuild/prelink/postbuild events), you can automate the process of signing your Delphi executables with a digital certificate.
Below the steps for signing Windows executables.
Prerequisites:
- You have your digital certificate in a PFX file.
(for testing you can use a self-signed certificate, for the real world you want a certificate leads to a CA). - You have the Windows SDK installed that provides SignTool.
(in this case, I presume a Windows 7 or 8 x64 machine with the Windows Software Development Kit (SDK) for Windows 8 installed. If not, you have to change the path in the various statements, for instance when using the Windows SDK: Download the Windows SDK for Windows 7 and More | MSDN.)
The post-build event code Read the rest of this entry »
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Posted in Delphi, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, Software Development | 3 Comments »
How do I test an interface? Should I even do that? | Software on a String
Posted by jpluimers on 2014/11/20
Please someone add the Software on a String blog to DelphiFeeds (:
Great article on testing implementations of interfaces in a generic way. With examples in NUnit and DUnit.
How do I test an interface? Should I even do that? | Software on a String.
And then Stefan Glienke made a great comment at https://plus.google.com/u/0/+MarjanVenema/posts/Dgb8WADLwXZ making the DUnit implementation even easier:
But even if you go without that extra base class the cool thing is that you don’t need to restrict your classes to be a TInterfacedObject but specify the interface they need to implement (yay, compiletime type safety) and then you can get rid of the Supports call and directly assign the result of the ctor call to the sut variable.
–jeroen
Stefan’s code:
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Posted in Delphi, Delphi 2007, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Software Development | Leave a Comment »
Delphi prebuild/prelink/postbuild events
Posted by jpluimers on 2014/11/20
Ever since the Delphi build engine got changed to MS Build in Delphi 2007, many people use Delphi build events. Their order is prebuild, prelink and postbuild (or maybe better spelled pre-build, pre-link and post-build).
Before Delphi 2007, you had to fiddler with project groups and dependencies to fake pre-build and post-build events. For an example see Pre and Post-Build Automation in Delphi.
One of the really good things about these events is that build events appear in the output tab of the messages window.
One of the really bad things is that there is hardly any documentation about the build events.
At least two important things are missing:
- How the lines of a build event are actually executed
- How parameter expansion works inside build events
Let’s explain these. Read the rest of this entry »
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Posted in Conference Topics, Conferences, Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, Event, FastMM, QC, Software Development | 5 Comments »
Delphi XE, Windows Theming, your DPR and the Project Options in the IDE
Posted by jpluimers on 2014/11/19
A while ago I bumped into a funny problem with Delphi XE.
I moved all the code from the .dpr in a Main unit (the IDE sometimes overwrites part of the DPR).
This normally isn’t a problem, until Delphi re-generates the .RES file. The reason is that this .RES file can contain a manifest which enables Windows theming.
If there is no reference of the Application object in the .DPR, the IDE will remove the Theming manifest from the .RES file, so your application run unthemed.
Three solutions: Read the rest of this entry »
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Posted in Delphi, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, Software Development | 6 Comments »
JCL & JVCL – What are the Real Gems in these Tool Sets
Posted by jpluimers on 2014/11/13
Steve Maughan posted a great question on G+ last week:
The resulting thread is full of people answering with their favorite JVCL and JCL gems.
Recommended reading!
–jeroen
via JCL & JVCL – What are the Real Gems in these Tool Sets I’ve just installed JCL….
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Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Software Development | 1 Comment »
BeSharp.net: PowerShell script to show the component packages (BPL) files for all installed Delphi (actually: BDS) versions.
Posted by jpluimers on 2014/11/13
A while ago, I wrote a via PowerShell script to show the component packages (BPL) files for all installed Delphi (actually: BDS) versions (now at List-Delphi-Installed-Packages.ps1) for a couple of reasons:
- I was creating installation instructions for getting new development machines set-up
- The new machines had to either have a minimum subset of installed Delphi versions + components, or the maximum superset of all the existing development machines
- Sifting through the installed Packages in the IDE, or registry by hand was cumbersome
Note that in the mean time (I queued this blog entry somewhere in 2013) the script has moved to BitBucket, I’ve written more scripts (like Dependencies.bat which is documented in Dependencies.md and Run-Dependend-rsvars-From-Path.bat), all modified all scripts to support all BDS versions I had access to, and a write nice conference paper on Build Automation for Delphi that references the scripts.
Since none of the machines were using pre BDS installations, I could limit the script to BDS 1.0 and up.
The very first (1.0) version of BDS (also known as the Gailileo IDE foundation) was in fact not a Delphi version, but C# Builder 1.0. All Delphi versions since then are based on BDS. The script is based on the BDS registry keys I researched and wrote about in Files in your Delphi settings directory; How to relocate the Favourites on your Welcome page.
Since registry access can be very much flow based, the pipeline architecture of PowerShell is a good fit.
So I wrote a PowerShell script (:
Note Thomas Mueller has written a batch file around the same set of registry keys; the thread there also has some insight in the HKLM versus HKCU keys.
I will explain my script step by step, and start with the most important one: Set-StrictMode -Version Latest. Read the rest of this entry »
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Posted in CommandLine, Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 8, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, PowerShell, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 