jpluimers Profile
jpluimers
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VOTEI’m using Delphi XE 10.2: empty documentation tab means you need to update to either the documentation Hotfix or 10.2.3
jpluimers
If you see the Documentation tab like below you need to either: install the[WayBack] 10.2.2 Welcome Page and Documentation Hotfix – Community Blogs – Embarcadero Community update to 10.2.3 manually fix the html/CSS width fiddling… … Read more
4 years ago in Delphi, Delphi 10.2 Tokyo (Godzilla), Development, Software Development
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Delphi spring collections
jpluimers
[WayBack] Spring Collections I have a list of elements, there are, for example, 100 of them. List : IList; I want to get 5 values greater than 10 and … – Jacek Laskowski – Google+… … Read more
4 years ago in .NET, Delphi, Development, Software Development
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Delphi Compiler Intrinsics can help you collapse generated code for generics a lot
jpluimers
On my reading list [WayBack] Delphi Corner Weblog: The current state of generics in Delphi because it explains in more detail why Delphi compiler generic type based intrinsics introduced some 5 years ago, but never been… … Read more
4 years ago in Delphi, Development, Software Development
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Delphi revelations #3 – kbmMW Smart client – DispInvoke leak – Components4Developers
jpluimers
For my archive, as one day I will run into this Variant/DispInvoke issue myself:[WayBack] Delphi revelations #3 – kbmMW Smart client – DispInvoke leak – Components4Developers: Delphi revelations, now about investigating a pesky DispInvoke bug… … Read more
4 years ago in Delphi, Development, Software Development
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Delphi: why breakpoints from time to time are not usable (green highlighted line on IDE)? – Stack Overflow
jpluimers
I still have not figured out the circumstances, but ever since either the Unicode Delphi versions (2009 and up) or BDS (8 and up), I have this every now and then: [WayBack] Delphi: why breakpoints… … Read more
4 years ago in Delphi, Development, Software Development
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A bunch of Spring4D dependency injection container related questions
jpluimers
Since G+ is down, a lot of interesting questions have vanished. Luckily I saved some by [WayBack] Jacek Laskowski – Google+ related to Spring4D and dependency injection: [WayBack] Spring4D IoC and specific singleton… – Jacek Laskowski –… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Do not make methods protected unless you want them to be visible as public
jpluimers
One of the protection levels in Delphi is protected. Originally meant for the class itself, that level is also visible to “friends”: anything in the same unit, for example: unit BusinessLogicUnit; interface type TBusinessLogic =… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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The Delphi Geek: Using Generics to Manipulate Enumerated Types
jpluimers
Not that this is bad code, but there are no unit tests for them, and I have seen places in the wild that blindly use it without documenting where it came from and what tested… … Read more
4 years ago in Delphi, Development, Software Development
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Delphi: `procedure RaiseAbstractError(const aClass: TClass; const aMethodName: string);`
jpluimers
Needs the System.SysConst unit: procedure RaiseAbstractError(const aClass: TClass; const aMethodName: string); begin // more explanatory than AbstractErrorProc(); raise EAbstractError.CreateFmt(‘%s: method %s.%s’, [SAbstractError, aClass.ClassName… … Read more
4 years ago in Delphi, Development, Software Development
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delphi – What are the list of all possible values for DVCLAL? – Stack Overflow
jpluimers
From a while ago, from notes even longer ago – around 1994 on DVCLAL the Delphi VCL Access License code which is actually a checking logic for determining the SKU (stock keeping unit) or Delphi… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, History, Software Development
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Tracking down Delphi “abstract error” occassions.
jpluimers
A few tips. Set breakpoints in these units: System.pas: procedure _AbstractError; begin if Assigned(AbstractErrorProc) then AbstractErrorProc; RunErrorAt(210, ReturnAddress); end; System.SysUtils.pas: procedure AbstractErrorHandler; begin raise EAbstractError.CreateRes(@SAbstractError); end; add a watch for ClassName that has “Allow side… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Be careful changing the DataContext of a TRemotable
jpluimers
Still not sure why the RTL code is like this: procedure TRemotable.SetDataContext(Value: TDataContext); begin if (RemotableDataContext <> nil) and (RemotableDataContext = Self.DataContext) then begin TDataContext(RemotableDataContext).RemoveObjectToDestroy(Self); end; FDataContext := Value; end; It means that if you… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Register and use a custom clipboard format in Delphi – twm’s blog
jpluimers
Cool post: [WayBack] Register and use a custom clipboard format in Delphi – twm’s blog. It is about transmitting GPS (WGS 84) coordinates from one program to another via the clipboard. One day I will… … Read more
4 years ago in Delphi, Development, Software Development
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Pointers are dangerous – twm’s blog
jpluimers
TL;DR Do not keep pointers to objects in memory that can be relocated. SetLength can relocate the memory [WayBack] Pointers are dangerous – twm’s blog Via: [WayBack] Pointers can be really helpful, especially they can improve… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Since Delphi still does not include a TDateTimeHelper: use the one by colini which has tests
jpluimers
These are quite OK: [WayBack] GitHub – colinj/TDateTimeHelper: Helper record for TDateTime type in [WayBack] DateTimeHelper.pas with DUnitX tests in [WayBack] TDateTimeHelper.Tests.pas. Via: [WayBack] Does Delphi XE 10.2.2 ship with type helpers … … Read more
4 years ago in Delphi, Development, Software Development
0