The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Development’ Category

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Delphi desktop settings: .DST naming limitations and content similarity to .DSK files

Posted by jpluimers on 2020/02/12

Based on [WayBack] Bummer, cannot save a Delphi desktop named “Default Layout – right 3/4” – at load this one seems to be restored, but the list does not contain that entry. – Jeroen Wiert Pluimers – Google+:

–jeroen

Posted in Delphi, Development, Software Development | Leave a Comment »

Catch Me If You Can: LLVM back-end cannot catch all exceptions

Posted by jpluimers on 2020/02/11

[WayBack] Catch Me If You Can:

the LLVM backend cannot return from a hardware exception (like AV) if the hardware exception is raised directly within a try...except block. It can only safely return if there is a function (method) call within the try...except block.

Via and by [WayBack] Dalija Prasnikar – Google+

–jeroen

Posted in Delphi, Development, Software Development | 1 Comment »

The Hard Thing About (Not So) Hard Things – John Cutler – Medium

Posted by jpluimers on 2020/02/11

Long read, but worth it: [WayBack] The Hard Thing About (Not So) Hard Things – John Cutler – Medium.

TL;DR: if you think these are hard, try them by reading the article:

Via: [WayBack] “what we call “hard” is often indicative of fear, lack of safety, lack of support, and limited ability to practice.” – Marjan Venema – Google+

–jeroen

Posted in Agile, Development, Software Development | Leave a Comment »

Is there a keyboard shortcut to go to the next/previous compiler error in the current …

Posted by jpluimers on 2020/02/11

Via: [WayBack] Is there a keyboard shortcut to go to the next compiler error in the current source file? – Jeroen Wiert Pluimers – Google+:

Primož Gabrijelčič:
Alt-F7, Alt-F8 IIRC

And indeed, it is sort of documented as of Delphi 2007 for “Message View”, but appears to be a much older shortcut:

I also completely forgot the compiler output is indeed a “Message View”.

–jeroen

Posted in Delphi, Development, Software Development | Leave a Comment »

Why does HRESULT begin with H when it’s not a handle to anything? – The Old New Thing

Posted by jpluimers on 2020/02/06

Interesting bit of history: [WayBack] Why does HRESULT begin with H when it’s not a handle to anything? – The Old New Thing.

TL;DR:

  1. It used to be a handle
  2. Few programs cared about the underlying objects
  3. Managing the underlying objects was way too expensive
  4. It got trimmed down to a number, but the name stuck

–jeroen

Posted in Development, History, Software Development, The Old New Thing, Windows Development | Leave a Comment »

Delphi Berlin and up without disabled Castalia: Use Ctrl+W to select content in the IDE code editor. Place your curso…

Posted by jpluimers on 2020/02/06

If you have enough guts to keep Castalia enabled and have Delphi Berlin or higher, then you can use this shortcut:

[WayBack] Tip: Use Ctrl+W to select content in the IDE code editor. Place your cursor some random piece of code, preferably deep in code that have nested block… – Lars Fosdal – Google+

–jeroen

Posted in Castalia, Delphi, Development, Software Development | Leave a Comment »

Check your PHP project for known security issues – SensioLabs Security Advisories Checker

Posted by jpluimers on 2020/02/05

If I ever cross a PHP project, this is my first requirement to pass: [WayBack] Check your PHP project for known security issues – SensioLabs Security Advisories Checker

–jeroen

Posted in Development, PHP, Scripting, Software Development | Leave a Comment »

Why Your Team Is Not Working as a Team – The Startup – Medium

Posted by jpluimers on 2020/02/05

Being part of a team can be tough, so this article has Seven ways individualism is getting in their way: [WayBack] Why Your Team Is Not Working as a Team – The Startup – Medium.

Via: [WayBack] “When your top players don’t know how to work together, their individual talents are useless.” – Marjan Venema – Google+ (who is a great coach!)

–jeroen

 

Posted in Agile, Development, Software Development | Leave a Comment »

The magic Delphi ReturnAddress intrinsic

Posted by jpluimers on 2020/02/05

I could not find any official place where ReturnAddress is documented even though it is used at quite a few places in the RTL, VCL, FMX and 3rd party libraries like DUnitX, Spring4D, JCL, ReportBuilder, TeeChart.

I tried searching it in the contexts of Delphi 2007, Delphi 2009, but there is only a [Archive.is] different System.ObjAuto.TParameters.ReturnAddress documented in XE2 and higher.

procedure Abort;
begin
  raise EAbort.CreateRes(@SOperationAborted) at ReturnAddress;
end;

There is a (usually broken*) ReturnAddr function used in various places of the RTL/VCL/FMX and (therefore wrongfully copied) in many other peoples code.

  function ReturnAddr: Pointer;
  // From classes.pas
  asm
    MOV     EAX,[EBP+4] // sysutils.pas says [EBP-4], but this works !
  end;
  • See the above link; I think this was fixed in Delphi XE, but the issue is still open.

Related to the above is the documented ExceptAddr.

I’ve used this in my ExceptionHelperUnit to build a GetStackTrace function in the example gist below.

I found these posts documenting the behaviour of the above intrinsic functions and more:

–jeroen

Read the rest of this entry »

Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »

I love installers that can download and install in parallel threads….

Posted by jpluimers on 2020/02/04

[WayBack] I love installers that can download and install in parallel threads. Embarcadero and Zypper can learn from this. – Jeroen Wiert Pluimers – Google+

Most Linux distributions have package managers that can do this (apt and yum can), but OpenSuSE zypper (actually ZYpp) cannot even download packages in parallel:

Embarcadero is in the same state as zypper.

–jeroen

Posted in *nix, Development, openSuSE, Power User, Software Development, SuSE Linux, Tumbleweed | Leave a Comment »

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