Interesting, need to try this one day to see how well this works so the base constructor TObject.Create cannot be called.[WayBack] delphi – How to hide the inherited TObject constructor while the class has overloaded ones? – Stack Overflow
–jeroen
Archive for the ‘Delphi’ Category
delphi – How to hide the inherited TObject constructor while the class has overloaded ones? – Stack Overflow
Posted by jpluimers on 2019/07/18
Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »
Tweaked TStringBuilder in FastCode is now 2x faster than the stock…
Posted by jpluimers on 2019/07/17
Reminder to self as occasionally I concatenate a lot of strings:
[WayBack] After some tweaking TStringBuilder in FastCode is now 2x faster than the stock Builder in SysUtils. – Johan Bontes – Google+.
Source: FastCode/FastStringBuilder.pas at master · JBontes/FastCode
–jeroen
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Posted in Delphi, Development, Software Development | Leave a Comment »
Delphi RTTI Context limitation: not thread safe for method RTTI
Posted by jpluimers on 2019/07/16
In a comment to [WayBack] Update: It was not clear what I was asking so I updated the question. I am trying to call RTTI Invoke from within TTask.Run and I get an AV. I have t… – John Kouraklis – Google+
… you can’t use a TRTTIMethod instance from a TRTTIContext of another thread….+Eric Berger+Panagiotis Drivilas That’s it. Many Thanks
–jeroen
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Posted in Delphi, Development, Software Development | 1 Comment »
Design Patterns & Refactoring
Posted by jpluimers on 2019/07/16
Design Patterns and Refactoring articles and guides. Design Patterns video tutorials for newbies. Simple descriptions and full source code examples in Java, C++, C#, PHP and Delphi.
Source: [WayBack] Design Patterns & Refactoring.
And indeed a lot of examples in Delphi too; few sites have that: Delphi site:sourcemaking.com.
–jeroen
Via: [WayBack] I stumbled upon this yesterday, very informative, accessible and also with Delphi examples – among other languages. – Steffen Nyeland – Google+
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Posted in .NET, C, C#, C++, Delphi, Design Patterns, Development, Java, Java Platform, PHP, Scripting, Software Development | Leave a Comment »
Thread around DCEF3 leaking memory, but DCEF4 doesn’t taught me to look at madExcept for memory leak checking too
Posted by jpluimers on 2019/07/09
This thread about [WayBack] DCEF3 memory leak in Delphi XE2 – Alberto Paganini – Google+ taught me that madExcept has a much more elaborate memory leak checking than FastMM4: it checks any Windows memory heap allocation, handle leaks, etc, not just the Delphi code induced memory allocations.
Thanks David Heffernan for commenting this part:
The madExcept leak tracking tools are much more comprehensive than those of FastMM because have much greater coverage. FastMM’s leak tracking tools are great, but only track native Delphi allocations. With the madExcept tooling you get all heap allocations (including non-native ones), handle leaks etc.
That is not to belittle the FastMM tooling at all…
Time to again look at [WayBack] madshi.net – madExcept description
–jeroen
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Posted in Delphi, Development, Software Development | 2 Comments »
A COM Object Collection (IEnumVARIANT) – Delphi Tips – CJC Delphi (Cool Delphi Tips)
Posted by jpluimers on 2019/07/04
Summary of [WayBack] A COM Object Collection (IEnumVARIANT) – Delphi Tips – CJC Delphi (Cool Delphi Tips)
Question: How to implements object collection that support Visual Basic’s For Each construct ?
Answer:
In order to implements an object collection your object has to returnIEnumVariantpointer from a special property named_NewEnum.
Via: [WayBack] What interface to I need to implement to allow ForEach in VBA on a COM object written in delphi? – Stack Overflow
–jeroen
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Posted in COM/DCOM/COM+, Delphi, Development, Software Development, Windows Development | Leave a Comment »
Delphi Galileo IDE (version 8 and up): Force files to be saved as UTF8 – The Oracle at Delphi
Posted by jpluimers on 2019/07/04
Though formatting mangled the registry key to add, the article is interesting: since 2003 (C# Builder 1), you can force the IDE to always save files as UTF8 which should alleviate a lot of encoding problems.
It beats me why this isn’t the default setting, but below is an example .reg file for Delphi 8 which should be easily transformed to more recent Delphi versions:
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| Windows Registry Editor Version 5.00 | |
| [HKEY_CURRENT_USER\Software\Borland\BDS\2.0\Editor] | |
| "DefaultFileFilter"="Borland.FileFilter.UTF8ToUTF8" |
So basically (if formatting is kept), you browse to this key (replace Borland with the company for your specific Delphi version, and replace 2.0 by your IDE version):
HKEY_CURRENT_USER\Software\Borland\BDS\16.0\Editor
Then you add a new string value named DefaultFileFilter with value Borland.FileFilter.UTF8ToUTF8
More background [WayBack] The Oracle at Delphi: More IDE secrets – UTF8 and the Editor
The unmangled registry key (and more tips) was from [WayBack] BSC Polska: Hidden possibilities of Delphi 8.
Get the list of HKEY_CURRENT_USER paths for your Delphi version at Update to List-Delphi-Installed-Packages.ps1 shows HKCU/HKLM keys and doesn’t truncated fields any more.
–jeroen
Via: [WayBack] Is there any way (IDE expert?) to automatic set encoding of each PAS file in UTF-8 instead of ANSI? – Jacek Laskowski – Google+
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Posted in Delphi, Development, Encoding, Software Development, UTF-8, UTF8 | 1 Comment »
[dcc32 Warning] “W1025 Unsupported language feature: ‘operator explicit'”
Posted by jpluimers on 2019/07/03
If the Delphi compiler throws a Source: "W1025 Unsupported language feature: 'operator explicit'" at you, then it is likely that you forgot this, as per Uwe Raabe:
In the project options set “C/C++ Output file generation” to “Generate DCUs only” to get rid of the warning.
Via: [WayBack] Delphi Community Edition Rant. Just installed Delphi CE from the 3rd attempt. Two times I tried to install all features – both times the installer fell… – Sergey Kasandrov – Google+
Note that the documentation still indicates that W1025 has been documented since at least Delphi 2007 ([WayBack] x1025: Unsupported language feature: ‘%s’) as a C++ header translation issue, and still is ([WayBack] X1025 Unsupported language feature: ‘%s’ (Delphi) – RAD Studio), despite other causes (like "W1025 Unsupported language feature: 'custom attribute'") fail if you have only installed the Delphi personality.
–jeroen
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Posted in Delphi, Development, Software Development | 1 Comment »
[RSP-19007] Form ScaleConstraints Fail – Embarcadero Technologies
Posted by jpluimers on 2019/07/02
[WayBack] [RSP-19007] Form ScaleConstraints Fail – Embarcadero Technologies
Via [WayBack] +Uwe Raabe Did Embarcadero fix TControl.ScaleConstraints() in the latest version? Do you have a patch for that? Simply changing the properties Min* agai… – Attila Kovacs – Google+
Fix: [WayBack] pisil.de/Patch.ScaleConstraints.pas
// Workaround for TControl.ScaleConstraints bug // Usage: // Put "PatchScaleConstraints;" into the dpr right after "Application.Initialize;"
–jeroen
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Interesting thread on how to approach Hi-DPI and DPI changes with FMX in Delphi
Posted by jpluimers on 2019/07/02
Interesting read: [WayBack] Is there an “How-To Guide: Upgrading Your Delphi FMX Applications To Support 4K Displays” out there ? I’ve only found VCL examples… – Stéphane Wierzbicki – Google+
–jeroen
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The Wiert Corner - irregular stream of stuff 