Archive

Tuesday, 19. March 2013

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Porting Delphi 2006 to XE2, fields versus properties: tightened compiler error E2197

The Wiert Corner – When porting some communications code that used records as properties from Delphi 2006 to Delphi XE2, I came across a tightened compiler error “E2197 Constant object cannot be passed as var parameter“. Let me first explain the good old occurrence of E2197 with some code that uses my last ...
Details Favorite? Off-Topic? jpluimers @ 06:00
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Getting Memory Device Info using Object Pascal (Delphi / FPC) and the TSMBIOS

The Road to Delphi – If you need to know what type of RAM is installed in your system or how is the manufacturer of your memory device, you can try reading the SPD (Serial presence detect) info directly (but not all the memory devices exposes the SPD info and reading the SPD require Kernel Mode access) , use the ...
Details Favorite? Off-Topic? Rodrigo @ 02:58

Monday, 18. March 2013

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C++ in the Multi-Device Enterprise

Sip from the Firehose – In every conversation, social network post and industry article, you hear about the need for multi-device support inside an Enterprise. Terms like BYOD appear in most articles and Enterprise strategies. Computing in a modern Enterprise is not only a Microsoft Windows world. Enterprise organizations ...
Details Favorite? Off-Topic? David Intersimone @ 23:45
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New ISO C++ Working Group papers tweets

JT @ Embarcadero – If any of you are interested in the C++ standard, the current Working Group 21 is tweeting paper submissions as they come in. Check out @isocpp. Some recent notables for me: A Parallel Algorithms Library Proposal for Assorted Extensions to Lambda Expressions—Faisal Vali et al. Proposal for Generic ...
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Class Helpers can help make multi-tier tasks easier.

Stephen Ball – A few weeks back we had a great discussion on Developer Direct titled "Mind your language(s) - vital expressions you need to know" - the replay for this will be available soon from the Developer Direct Season 3 playlist on YouTube. One part of the language we covered in this session talked about ...
Details Favorite? Off-Topic? Stephen Ball @ 14:59
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Warsaw, Brno and David I in Europe

Pawel Glowacki – What a week it was! Travelling and showing Delphi for iOS to developers in different countries. Very rewarding experience. This product and technology are going to rock when they are released. Delphi (and C++Builder) developers are so super happy to see the technology that supports what is hot on ...
Details Favorite? Off-Topic? Pawel Glowacki @ 11:38

Sunday, 17. March 2013

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Multithreading and PostMessage performance

Behind the connection – Windows messaging system is very useful for doing asynchronous programming, including multithreading. But what about performance?   In asynchronous operation, including multithreading, a developer frequently needs a message queue to serialize processing and notifications. Windows has his own ...
Details Favorite? Off-Topic? François Piette @ 23:25

Saturday, 16. March 2013

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Locking my iOS drums app to landscape orientation

JT @ Embarcadero – I’ve recently decided my PlayMyDrums iOS app is best suited for the iPad and more specifically landscape mode (rotated 90 degrees). Take a look at the app in Portrait mode - it doesn’t provide enough playing area since it shrinks the image to fit. Additionally, the FireMonkey ellipses I ...

Friday, 15. March 2013

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Publishing pictures from an HTML5 app

DelphiTools – This is a belated followup to the L-System Fiddle series from last year (more like a forgotten article), which ended with a Pascal-based HTML5 app being used to generate fractals and publish them to imgur. Why imgur? Well because they have a well-documented API and they don’t require ...
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Twitter Search Client on iOS

Marco's Tech Blog – Migrated a very simple Twitter Search REST client to iOS today for Developer Direct. The application has a VCL version, a FireMonkey version, and now an iOS version. All forms and user interfaces are different, but the bulk of the code is in a shared data module. The form passed to this data module ...
Details Favorite? Off-Topic? marcocantu @ 13:07
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Blog #16 - ADUG Symposium 2013

LearnDelphi.TV – The Australian Delphi User Group are holding their Annual Symposium and I'm speaking.  It is being held in Melbourne (Thursday) and Sydney (Friday) the 21st and 22nd of March 2013.  Here is a brief 30 second snippit of my talk - if you want to see the whole thing then you had better register on the ...
Details Favorite? Off-Topic? learndelphi@christie.net.nz @ 12:47
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The ADUG Autumn Symposium is less than a week away

Australian Delphi User Group Members – Time really is running out to register for the number one event on the Australian Delphi Calendar. Registrations will close at 11pm, this coming Tuesday 19th March with the event itself held in Melbourne on Thursday 21st March and Sydney … Continue reading →

Thursday, 14. March 2013

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Top 10 Reasons to use Platform Native APIs

RemObjects Blogs – What are native platform APIs? They are the APIs provided by the platform vendor that define the platform. On Android this is the Android SDK. On iOS it is the Cocoa Touch Frameworks. On Windows and Windows Phone it is WinRT and the .NET Framework. There are undocumented APIs, and even calls that ...
Details Favorite? Off-Topic? Jim McKeeth @ 17:38
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Delphi “Variant Records”, a few notes

The Wiert Corner – Variant Records are a feature that has been in the Pascal language since Standard Pascal. A cool page for historic perspective is R3R: Pascal Features in Popular Compilers, hopefully someone will update it to more modern versions of the mentioned compilers. There is not much official documentation ...
Details Favorite? Off-Topic? jpluimers @ 06:00
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BDE Migration

Felix Colibri – BDE Migration : motivations and difficulties of a BDE migration for big projects: selecting an alternate component suite, transfering the data, modifying the .PAS and the .DFM, simultaneous Delphi version migration, automatic tools, checklist, time and cost estimations [google translate from the ...
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