Archive

Wednesday, 4. July 2012

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Casting an Interface to a Class, the efficient way

DelphiTools – Delphi 2010 added support for the “as” to cast an interface reference to its implementation class. Cast interface as class type IFoo = interface ... end; TFoo = class (TInterfacedObject, IFoo) ... end; ... var intf : IFoo; var foo : TFoo; ... intf := TFoo.Create; ... foo := intf as ...
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Hollerith and why we have digraphs in Pascal and trigraphs in C/C++ (nostalgia, Apple ][ plus)

The Wiert Corner – Some nostalgia (: In the mid 80s, when programming in UCSD Pascal and Turbo Pascal, I learned that Pascal has (. and .) digraphs that translate into [ and ], similar to the (* and *) digraphs that translate to { and }. In fact I thought the English word was bigraph (as bi- is a prefix for twice, ...
Details Favorite? Off-Topic? jpluimers @ 13:00
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Porting the Objective-C CFFTPSample to XE2: Part 1

Te Waka o Delphi – On the NZ DUG email list (yes, we still have those here) a question was recently posted asking for help with getting some FTP code working on OSX, using XE2. This coincided nicely with my reaching a point in my Objective-C learning where this sort of exercise was of interest to me also, so I [...]
Details Favorite? Off-Topic? Deltics @ 10:12
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Office Closure

JED Software Blog – We will be closed from today until July 16, 2012 for a well earned break!   New orders and renewals will not be processed during this time. Support queries will be processed however the turn around may be increased.
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Italian Delphi Day 2012 Report (by Marco Breveglieri)

Marco's Tech Blog – Marco Breveglieri has posted a link to a 18 pages report about the Italian Delphi Day event last June. Written in Italian, the report has a lot of details about the event and also a number of pictures. The PDF is available at ...
Details Favorite? Off-Topic? marcocantu @ 00:37

Tuesday, 3. July 2012

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Taking the Right Path

TPersistent.com – I thought I would share some additional information on Path issues that I discovered while migrating my current project to XE2, and making it compile for both Win32 & Win64. If you decide to change the default Win32 DCP and BPL Paths to include the $(Platform) environment variable, be sure to ...
Details Favorite? Off-Topic? Larry Hengen @ 20:55
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OmniThreadLibrary Documentation: ForkJoin

The Delphi Geek – A chapter on Parallel.ForkJoin is now available online. --- Published under the Creative Commons Attribution 3.0 license
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Better OnStop

The Delphi Geek – Pop quiz! What’s wrong with this code? FPipeline1 := Parallel.Pipeline .Stage( procedure (const input: TOmniValue; var output: TOmniValue) begin end) .Stage( procedure (const input: TOmniValue; var output: TOmniValue) begin end) .OnStop( ...
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Sizing TComboBox Drop Down List Width - No Cut Off

About Delphi Programming – in TComboBox :: When a combo box is in dropped down state Windows draws a list box type of control to display combo box items for selection. When the length (of a string) of items exceeds the width of the combo box, the items are displayed as cut-off! Calling CB_SETDROPPEDWIDTH and ...
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Introducing EDN Mobile v1.1

Idle Musings of a Delphi Junkie – EDN Mobile A new version of EDN Mobile has been launched, and along with it comes a few new features that moves it from being simply a clone of the http://members.embarcadero.com website, to instead starting to harness some of the features found in Android smartphones. I used this opportunity to ...
Details Favorite? Off-Topic? David Clegg @ 00:10

Monday, 2. July 2012

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The FMX enumeration anti-pattern

Delphi Haven – Checking up on DelphiFeeds.com, I see a member of Embarcadero Developer Relations (Stephen Ball) has just blogged some example code. In it, he demonstrates a class helper that adds methods for enumerating a FireMonkey control, doing so in a way that just picks out nested objects of a certain class. ...
Details Favorite? Off-Topic? Chris Rolliston @ 23:13
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It's That Time Again: Gateway Ticketing Needs Delphi Developers

Nick Hodges – My company, Gateway Ticketing, is hiring again. We are looking for Delphi developers. Actually, having Delphi skills is great, but we are mostly interested in smart people that know what they are doing when developing high-quality software.  We love Delphi and C#, but in the end, ...
Details Favorite? Off-Topic? nick@nickhodges.com @ 22:05
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Class Helper’s with FireMonkey

Stephen Ball – One of FireMonkeys really cool features is the way objects can be parented to other objects, and I’ve been using this a lot in demo’s I’ve been writing recently. Supporting this are properites for TFMXObject.ChildrenCount and TFMXObject.Children (introduced on TFMXObject). Using ...
Details Favorite? Off-Topic? Stephen Ball @ 17:37
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Getting a Lock on Delphi

Let's Get Technical – Some of Delphi's more powerful and best kept secrets have actually been in the product since the beginning, and in this short post I want to point out one of these, a feature that most Delphi developers I talk to are unaware of. Last October I gave a keynote address in Düsseldorf, Germany, as part ...
Details Favorite? Off-Topic? noreply@blogger.com @ 17:33

Sunday, 1. July 2012

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Restoring Quick Config on a TMS AdvStringGrid

Cape Cod Gunny Does Delphi – I recently purchased the TMS Component Pack mainly because of the grid capabilities TMS offers over Delphi's native grid. So I started playing around with the grid and flipping things on and off to see how the grid would be affected.I was playing around with the "Set Look" option of the Quick ...
Details Favorite? Off-Topic? Michael Riley @ 09:28
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