Story Category: Conference Topics
VOTETracking 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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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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Learned about the {$EXTENSION zzz} or {$E zzz} Delphi directive: {$EXTENSION yyy.zzz} fails
jpluimers
I totally missed that this has been added in Delphi a long time ago (at least in Delphi 2007 or maybe even before): the {$EXTENSION zzz} or {$E zzz} Delphi directive that sets the file extension… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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FastMM PushAllocationGroup
jpluimers
Few people seem to know about the FastMM PushAllocationGroup method. This search returned almost nothing: fastmm PushAllocationGroup -site:github.com -site:sourceforge.net -site:stackoverflow.com – Google Search. These results were convoluted: fastmm PushAllocationGroup site:sourceforge.net – Google Search fastmm PushAllocationGroup site:stackoverflow.com – Google… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, FastMM, Software Development
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Spring4D Mock – Delphi Unit Testing : Writing a simple spy for the CUT – Stack Overflow
jpluimers
Reminder to self: write a longer article on Delphi mocking as Spring4D mocking is much better than Delphi Mocks, especially because of code-completion reasons. Spring4D has a Mock record that can return a Mock<T> on… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Spring4D
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Automated testing Windows applications using Katalon and WinAppDriver
jpluimers
[WayBack] Top 45 Best Automation Testing Tools Ultimate List • Test Automation Made Easy: Tools, Tips & Training Awesomeness A few notes, partially related to Enable your device for development – UWP app developer | Microsoft… … Read more
4 years ago in .NET, Conference Topics, Conferences, Delphi, Development, Event, Software Development, Windows Development, WinForms, WPF
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From Delphi 1: Type Compatibility and Identity
jpluimers
A feature overlooked by many Delphi programmer was already introduced in Delphi 1 which is more or less the same as in the Delphi 2007 documentation at [WayBack] Type Compatibility and Identity. There is a… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Delphi XE6 .. 10.1 Berlin truncating non-VCL-control texts to 256 characters when styled
jpluimers
As of Delphi XE6, the VCL also styles non-VCL controls, but this truncates the texts to 256 characters, for instance in non-balloon hints. This is fixed in Delphi 10.2 Berlin, by making the buffer dynamic… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, The Old New Thing, Windows Development
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Delphi Gem of the day: putting “reintroduce” on a destructor. destructor…
jpluimers
A nice thread with examples of all the things you should not do with the Delphi reintroduce keyword: [WayBack] Delphi Gem of the day: putting “reintroduce” on a destructor. destructor Destroy(); reintroduce; overload; In our… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
0
Delphi: TInvokableClassRegistryHelper.GetInterfaceNamespace as the opposite of TInvokableClassRegistry.RegisterInterface
jpluimers
A while ago, I needed the opposite of InvRegistry.RegisterInterface(TypeInfo(MySoapInterfacePortType, ‘urn:myURN’, ‘utf-8’);, so instead of registering an interface with a namespace URN, obtain the URN by passing the interface inverting [WayBack] TInvokableClassRegistry.RegisterInterface. This is the class… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, SOAP/WebServices, Software Development
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FreePascal downloads I used to get Web Service Toolkit to compile since the Delphi WSDL importer has braindead include support
jpluimers
The Delphi WSDL importer maintenance has been in dormant mode for a long while, which means it still barfs on WSDL include directives. In the day and age of REST and gRPC, I don’t think… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Spring4D – Shared, Weak references
jpluimers
In addition to Shared/IShared, there is also Weak/IWeakReference in Spring.pas; these blog post explain more about them: Shared/IShared (search for {$REGION ‘Shared smart pointer’} at the current repository): [WayBack] Delphi sorcery: Smart pointers in Delphi Weak/IWeakReference (search for… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
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Delphi unit aliases: multiple ones can point to the same unit
jpluimers
A while ago, I had to figure out how to get some GExperts stuff cross-compile to older Delphi versions, because of UITypes usage that is not available in Delphi XE and lower (but much of… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, GExperts, Software Development
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Why Rubber Ducking is good
jpluimers
I like it when people find out that Rubber Ducking is a good thing. Read the story at [WayBack] … I’ve read about ‘rubber ducking’ and thought of it as a good thing, but I… … Read more
4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development
0