For my link archive: [WayBack] Delphi, soap and wrapping values in cdata – Stack Overflow
–jeroen
Archive for the ‘Delphi’ Category
Delphi, soap and wrapping values in cdata – Stack Overflow
Posted by jpluimers on 2020/09/15
Posted in Delphi, Development, SOAP/WebServices, Software Development, XML/XSD | Leave a Comment »
Reminder to self: iocp-delphi/ThreadPool.pas at master · tondrej/iocp-delphi · GitHub
Posted by jpluimers on 2020/09/15
If I ever need a thread pool in Delphi, then I need to look at this class: [WayBack] iocp-delphi/ThreadPool.pas at master · tondrej/iocp-delphi · GitHub.
Via: [WayBack] Don’t lose time with a known Delphi bug affecting TParallel.Join Don’t lose time with a known Delphi bug affecting TParallel.Join; Ondrej Kelle – Google+
Full repository: [WayBack] GitHub – tondrej/iocp-delphi: Windows I/O Completion Port wrapper class for Delphi and Free Pascal. Wide support too:
- compilers: Delphi 7 or higher, Free Pascal 3.0.4 or higher
- targets: Windows XP/Windows Server 2003 or higher, both 32 and 64-bit
–jeroen
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FreePascal downloads I used to get Web Service Toolkit to compile since the Delphi WSDL importer has braindead include support
Posted by jpluimers on 2020/09/11
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 it will get any love soon.
Related bug entries are for instance RSP-18630: WSDL generate bad code and RSP-17321: “Import WSDL” generates invalid code without explanation of problem are examples of this, and I’m sure that QC had more if it were still alive; I could find these in the WayBack machine:
- [WayBack] QualityCentral 5490: Types not generated properly when wsdl contains multiple namespaces
- [WayBack] QualityCentral 53643: WSDL importer fails to import schemas in XSD files namespace
The problem manifests itself when the WSDL file includes one or more XSD files. The generated code will contain a section like this:
// ************************************************************************ // // The following types, referred to in the WSDL document are not being represented // in this file. They are either aliases[@] of other types represented or were referred // to but never[!] declared in the document. The types from the latter category // typically map to predefined/known XML or Embarcadero types; however, they could also // indicate incorrect WSDL documents that failed to declare or import a schema type. // ************************************************************************ //
Further below is a series of commented out types, all starting with a ! end ending in a column with the namespace of those types.
Searching for the first line gives numerous examples as far back as Delphi 7, for instance:
- [WayBack] delphi – How to fix unresolved types when importing Exchange Web Services (EWS) wsdl file? – Stack Overflow
- [WayBack] Types in wsdl not imported – Google Groups
- [WayBack] Trouble with Delphi 7 – delphi
- [WayBack] HELP: Delphi als WEB-Server WSDL als style=document statt RPC – Delphi-PRAXiS
- [WayBack] web services – Delphi SOAP Server – Document/Literal – Possible? – Stack Overflow
- [WayBack] Bing Maps in Delphi
- [WayBack] Alternatief voor request sturen naar webservice
Based on those, I think the reason is that the WSDL importer fails on <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" /> which is quite common in the real world.
I did not want to pursue manually modifying the WSDL file, or manually generating the types as the WSDL and XSD files were prone to changes and manual steps would make the re-import process more tedious. If you do want to do that, these link might help:
- [WayBack] delphi – What tool can I use to merge wsdl and xsd file? – Stack Overflow
- [WayBack] web services – WSDL import issue in delphi – Stack Overflow
This is what I used to get this to compile and run [WayBack] Web Service Toolkit – Free Pascal wiki:
- [WayBack] webservicetoolkitforfpc&lazarus – Inoussa OUEDRAOGO
- [Wayback] sites.google.com/site/inoussa12/wst-0.7u.zip?attredirects=0
- [WayBack] Free Pascal – Download
- Source (especially for the RTL files which are not part of the binary installation) from either
Build steps
FPC installation
- Run the 32-bit installer
- Keep all options except on the second install screen, disable
Associate .inc files with FreePascal IDE - Add
C:\FPC\3.0.4\bin\i386-win32to the user path
Building
- Recursively unzip wst-0.7u.zip
- Open a command prompt in the
wst-0.7udirectory - Verify there is a
ws_helpersubdirectory - …
- …
- …
- …
When compiling in Delphi, then you definitely need the FreePascal RTL sources for the PasTree unit; see [WayBack] fcl-passrc – Free Pascal wiki.
Related:
- [WayBack] What about webservice client?
- [WayBack] Developing with Objective Pascal – Part 11: Using Web Services
–jeroen
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Keep Your Project Files Clean With Project Magician – The Art of Delphi Programming
Posted by jpluimers on 2020/09/10
Reminder to self to install this to more than just the main dev VM as it combines DProjNormalizer and DProjSplitter, then adds a few more features: [WayBack] Keep Your Project Files Clean With Project Magician – The Art of Delphi Programming
Example of the wizard that shows the additional features
Via [WayBack] Keep Your Project Files Clean With Project Magician – Uwe Raabe – Google+
–jeroen
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Delphi – tools to generate class diagrams/hierarchy from source code
Posted by jpluimers on 2020/09/09
I know ModelMaker Tools could do this: [WayBack] Quick Question … are there any good tools available to generate class diagrams / hierarchy from existing code? Or doesn’t anyone do that anymore ? – Stefaan Lesage – Google+
But I didn’t know the other tools from the thread had options as well:
- [WayBack] PasDoc (through GraphViz which is also used as PlantUML rendering engine)
- [WayBack] GExperts Class Browser
- [WayBack] ESS-Model (though the parser is from 2003)
–jeroen
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Posted in Delphi, Development, Diagram, PlantUML, Software Development, UML | 1 Comment »
Fl Ko: Getting the pixel position of the current editor cursor position for an OTA wizard
Posted by jpluimers on 2020/09/08
Since WayBack cannot save G+ photos, here is one from [WayBack] So, now I’m in front of a problem similar to a former one: I need to get the pixel position of the current editor cursor position for my OTA wizard. I’… – Fl Ko – Google+:
Related:
- [WayBack] Is there a way when using Open Tools API to get the current text symbol directly below the mouse cursor? Unfortunately even with +David Hoyle ‘s tool O… – Fl Ko – Google+
- [WayBack] RS10_2_RTTI_ContextTypes.txt (https://github.com/FlKo/CodeDump/blob/master/RS10_2_RTTI_ContextTypes.txt)
–jeroen
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Mike Versteeg tried getting Hi-DPI to work in Delphi 10.2
Posted by jpluimers on 2020/09/03
Wondering how far Mike Versteeg has gotten in the mean time with the newer versions of Delphi that have come up: [WayBack] I’m having a go at multi monitor high DPI support for my styled 64 bit VCL app, which is still not supported in 10.2. Using Scaled and ScaleBy I can com… – Mike Versteeg – Google+
–jeroen
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Delphi consensus: interface implementing classes expose methods at private or protected level.
Posted by jpluimers on 2020/09/02
Interesting consensus at which is very similar to my experience: [WayBack] I’ve inherited a project and the developer uses lots of interfaces (All good here!). Then when they develop the interfaced classes, the methods from th… – John Kouraklis – Google+
Some go even further and even declare the classes in implementation sections, but for me that gives too much RTTI hassle:
Private types (types in the implementation section of units) do not get qualified names.
via: Delphi: TRttiContext.GetType versus TRttiContext.GetTypes is not about singular versus plural…
–jeroen
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What’s the piece of Delphi knowledge you find yourself looking up over and over again…
Posted by jpluimers on 2020/08/31
From an interesting thread at [WayBack] What’s the piece of Delphi knowledge you find yourself looking up over and over again? For me format strings is probably the thing that most stubbornly… – Lachlan Gemmell – Google+
- [WayBack] format strings
- Generics, as not much has changed in the docs since [WayBack] Overview of Generics or the linked articles:
- [WayBack] Declared Constants: Typed Constants
- File extenions with or without dot? The prefix period is included [WayBack] Delphi Basics : extractfilename command, but the file NAME does not include a prefix backslash:
- [WayBack] irregular syntax, for instance record constants
- [WayBack] variant parts in records
On the generics side, I have wrote a few bits in my blog before, often pointing to information by others (many by Stefan Glienke as his skills on this topic are beyond excellent):
- Delphi Constraints in Generics – RAD Studio XE documentation wiki
- Impossible: Property using Generics in Delphi. Interfaces/classes/methods/fields/constraints/type inferencing are
- How do I test an interface? Should I even do that? | Software on a String
- As Delphi generics are not supported for free functions, wrap them in a record container
- Workaround for Delphi 2010 compiler error “E2076 This form of method call only allowed for class methods” when it infers a generic parameter type
- The Default magic function in Delphi
- Reminder: rebuild my Nullable Types based on Class Operators in Delphi
- Implementing Memoize in Delphi 2009 – Community Blogs – Embarcadero Community
- Delphi XE8 things I learned from the first week of G+ reading
- Delphi/Fortran memory allocation difference: row/column major order makes a big difference. StackOverflow answer
- Spring4D: How is the GlobalContainer intended to be used? Are there important don’ts?
- Delphi: do not mix interfaces and classes part X
- If you use Delphi or RAD Studio 10.2.2, ensure you have the latest one installed (build 2004) as it fixes some binary DCU incompatibility bugs
- Reminder to self – proposals for Delphi Language Enhancements, a year later
- Delphi and the joy of Compiler Intrinsics – I cant use “Length” as a TFunc…
- Delphi sorcery: Generics, modules and typeinfo
- Interesting discussion about generic Dictionaries in Delphi (via: Steve Maughan – Google+ – TObjectDictionary Advice Needed)
- Stefan Glienke on Delphi generics: Implementing List Enumerator OfType in Delphi – Stack Overflow
- Implementing Memoize in Delphi 2009 – Community Blogs – Embarcadero Community
- Delphi history: No, dynamic arrays do not support a non-zero lower bound, but what if you want them? – via Stack Overflow
- Looking for more examples of Unicode/Ansi oddities in Delphi 2009+
- Delphi analog to C# ?? null-coalescing operator and Light Table like debugger evaluation
- Some interesting Delphi posts by Stefan Glienke – Spring4D maintainer
- Delphi XE8 things I learned from the second week of G+ reading
- Some links to Delphi Unit Testing history
- Default comparers in Delphi used by TArray.Sort (via: Stack Overflow)
- Call for help: Spring4D and Delphi MultiCast events: working for Win32, Win64 and Mac OS X x64, but Android/iOS ARM help needed
- More Delphi PDF manuals (via: Cape Cod Gunny Does Delphi: The One Manual Every Delphi Programmer Should Have!)
- Some Delphi libraries and ideas you should take a look at (link clearance)
- Some words on Unicode in Windows (Delphi, .NET, APIs, etc)
- Another case against FreeAndNil
- On List growth strategies and memory managers
- RAD Studio 2015 Roadmap – Blogs
- CodeRage 9 Q&A: Advanced RTTI in Object Pascal (Ray Konopka)
- co-worker question: what is better, extension methods or helper classes?
And on records:
- Delphi “Variant Records”, a few notes
- Undocumented Delphi record alignment directive – Chee Wee’s blog: IT solutions for Singapore and companies worldwide
- Record helpers can do wonders for code clarity
- Delphi: ^TNodeData incompatible with PNodeData – {$T+} versus {$T-}
There are some very good books on Delphi though that dig deeper than the documentation:
–jeroen
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“Fatal: F1027 Unit not found: ‘System.pas’ or binary equivalents (.dcu)”
Posted by jpluimers on 2020/08/25
If you ever get a “Fatal: F1027 Unit not found: ‘System.pas’ or binary equivalents (.dcu)” – Google Search, then it is likely because you:
- build from a script
- build use a user that has never ran the Delphi IDE
This is common for unattended builds (like build-automation).
For each run, the Delphi IDE will save an EnvOptions.dproj with global settings.
Since build scripts should not rely on global settings, you need to ensure those are in your project settings.
Some background reading on this:
- [WayBack] Conferences/Continua-CI.md at master · jpluimers/Conferences · GitHub
- [WayBack] build – Delphi XE – F1027 Unit not found: ‘System.pas’ or binary equivalents (.dcu) upon Activation of trial version – Stack Overflow
- [WayBack] Q136723 – Compile Error F1027: Unit not found. | DevExpress Support Center
–jeroen
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The Wiert Corner - irregular stream of stuff 