Interesting thought [WayBack] In windows, can I redirect stdout to a (named) pipe in command line? – Super User.
The only problem seems to be a good way of creating/removing those pipes.
–jeroen
Archive for the ‘Software Development’ Category
In windows, can I redirect stdout to a (named) pipe in command line? – Super User
Posted by jpluimers on 2019/01/14
Posted in Batch-Files, Development, Power User, Scripting, Software Development, Windows | Leave a Comment »
Life after Google+ – Lars Fosdal: Friends+Me Google+ Export tool.
Posted by jpluimers on 2019/01/11
A little while ago, I blogged about Life after Google+ – Lars Fosdal. In the mean time, Lars has made a lot of progress exporting the community [WayBack] Delphi Developers – Google+ (which has moved to en.delphipraxis.net !).
He is a heavy user of the Friends+Me Google+ Export tool, which basically is an actively maintained web scraper with standard output targets:
[WayBack] Google Plus Exporter – Medium: Export your Google+ feeds to WordPress, Blogger, and JSON.
It does not depend on the G+ REST API: “the app is using web scraping and will keep working until the bitter end”.
Quite a bit of that information and the feedback he has is in this thread: [WayBack1/WayBack2] Hi Everyone, We’ve just released Google+ Exporter, an application that helps you to export your Google+ feeds (profile, pages, collections, communities… – Friends+Me – Google+
Of course G+ does not save the whole thread in the WayBack machine, so here it is copy-pasted (unformatted; maybe I will format it later):
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Posted in Development, G+: GooglePlus, Gutenberg editor, LifeHacker, Power User, SocialMedia, Software Development, Web Development, WordPress, WordPress | Leave a Comment »
from a WSDL import: empty “Reference.cs” – Google Search
Posted by jpluimers on 2019/01/10
A search for empty “Reference.cs” – Google Search seems to indicate this happens with referenced types that – despite turning off that option – from the Visual Studio 2017 IDE sometimes results in an empty Reference.cs.
My solution: import in an empty project, then move the reference to the existing project and add it.
[WayBack] c# – Sometimes adding a WCF Service Reference generates an empty reference.cs – Stack Overflow
–jeroen
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Posted in .NET, C#, Development, Software Development, Visual Studio 2015, Visual Studio 2017, Visual Studio and tools | Leave a Comment »
Some ideas to show a Google Calendar on a TV using a Raspberry Pi and HDMI output
Posted by jpluimers on 2019/01/10
Using OpenSuSE Tumbleweed E20 on Raspberry Pi 3: accessing the enlightenment desktop over VNC after automatic logon I wanted to buy an on-line read-only diary to help my mentally retarded brother see what his next few days are going to be like.
He increasingly has difficulty handling a paper agenda and has an agenda with 30 minute blocks like [Archive.is] bol.com | Bureau Agenda 2017 – 1 dag per Pagina | 0041560163422 | Boeken (and the [Archive.is] picture on the right), but actually he needs 15 minute blocks during some portions of the day.
We call that kind “bureau agenda” which I think translates well into “desk diary”.
They were quite different from the agendas I used to have at school (:
[WayBack] [Zonder titel] Rijam agenda 1983/84 verzamelen? Stripcatalogus op Catawiki
For most school mates, they were more like this:
Had je een O’Neill of ging je voor De Familie Doorzon? De oude agenda’s uit je middelbare schooltijd zijn de verpersoonlijking van je eigen puber-ik. Afgelopen weekend startte in het Nationaal Onderwijsmuseum in Dordrecht de toffe tentoonstelling Grow Up over die vuistdikke, volgeplakte agenda’s.
Anyway, some ideas I initially had are below.
This is what I actually did:
- Build a Raspberry Pi with E20 on it that automagically logs on an X11 session, exposes it via VNC in a shared way (so the caretakers and I can remotely manage it) and shows Firefox with a start page.
- The start page refreshes itself about every minute and embeds a Google Calendar view and refreshes itself about every minute (as embedded calendars do not automatically skip to the next day at midnight, nor dynamically update themselves [WayBack] does an embedded calendar automatically update with changes? – Google Product Forums).
It’s based on these:- stefek99/htmlshell: A quick custom boilerplate HTML5 markup generator live at [WayBack] html shell A quick custom boilerplate HTML5 markup generator, has a few versions (so the http users get redirected to https)
- The page contains the agenda in an
iframeas per [Archive.is] Boyden, Mark – Embedding Google Calendars – Programming – Content and - [WayBack] Auto refresh embedded calendar SOLUTION – Google Product Forums
- I always fight with
iframeheights as when you specify100%it will shrink to the height of the content. For full screen height, the100vh(ViewportHeight) seems to do the trick as per [WayBack] javascript – Full-screen iframe with a height of 100% – Stack Overflow and [WayBack] CSS Values and Units Module Level 3: Viewport-percentage lengths: the vw, vh, vmin, vmax units
Two things for the future:
- The Agenda view does not show end-times for events. Other views do. The printable output does. I want them in the Agenda view as well. I’m not alone (:
- [WayBack] embed – Google Calendar Agenda view End Time and Location – Web Applications Stack Exchange Is there a way in the embed code for Google Calendars to display the Start time – End Time Event Title Event Location?
- [Archive.is] Display End Time in Embedded Calendar – Google Product Forums
- I might make the page responsive and have multiple iframe instances with different views on the calendar. For that, these will likely help:
Initial thoughts
Raspberry based:
- https://productforums.google.com/forum/#!topic/sites/YN-2pHw11js
- Embedded calendar links:
- URL generator at https://calendar.google.com/calendar/embedhelper?ctz=Europe/Amsterdam
- https://calendar.google.com/calendar/embed?mode=AGENDA&height=600&wkst=1&bgcolor=%23FFFFFF&src=user.name%40gmail.com&color=%235F6B02&ctz=Europe%2FAmsterdam
- I likely want to fiddle with the above URLs using tips from Google Calendar – printing multiple months or weeks to PDF – URL parameter tips and tricks (which has the parameter meanings, including
mode,wkst, etc).
- [WayBack] Raspberry Pi Google Calendar Screen
- http://www.instructables.com/id/Raspberry-Pi-Wall-Mounted-Google-Calendar/
- http://www.instructables.com/id/Raspberry-Pi-Wall-Mounted-Calender-and-Notificatio/
- https://lifehacker.com/combine-a-raspberry-pi-with-google-calendar-for-a-smart-512265472
- http://dakboard.com/blog/diy-wall-display/
Chromecast based:
- https://stackoverflow.com/questions/21945115/display-web-sites-and-web-apps-with-chromecast
- https://www.thedash.com/login
- https://stestagg.github.io/dashcast/
- http://www.guidingtech.com/50991/creative-uses-chromecast/
- https://github.com/lanceseidman/PiCAST
–jeroen
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Posted in Development, Google, GoogleCalendar, Hardware Development, JavaScript/ECMAScript, JSFiddle, LifeHacker, Power User, Raspberry Pi, Scripting, Software Development | 2 Comments »
Getting the class from an TRttiProperty by using MetaclassType
Posted by jpluimers on 2019/01/09
Basically I learned that I should not only look for ClassType, but also for MetaclassType: [WayBack] Not a major problem, but given that xProp is a TRttiProperty instance is there a better way to get the ClassType of a property that is tkClass? – Chad Hower – Google+:
Chris Rolliston
The
System.Rttiway is this –
x := xProp.PropertyType.AsInstance.MetaclassType;Been in since
TRttiContextwas first added, IIRC.
It indeed has been documented since Delphi 2010: [Archive.is] Rtti.TRttiClassRefType.MetaclassType – RAD Studio VCL Reference
–jeroen
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Posted in Delphi, Development, Software Development | Leave a Comment »
Converting html fragments to reStructuredText
Posted by jpluimers on 2019/01/09
Though normally you would write documentation in reStructuredText, then generate HTML or PDF, often you find a part of the documentation source in HTML.
Here are some sites and tools I’ve used to convert HTML fragments to reStructuredText. I favour on-line over local command-line tools as usually these kinds of conversions are “one-time only”.
- [WayBack] Translate HTML to reST – Siafoo
- Documentation: [WayBack] HTML to reST translator – Siafoo
- Pandoc command-line: [WayBack] restructuredtext – Using pandoc to convert html to rst strips the newlines from the pre block – Stack Overflow
–jeroen
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Posted in Development, Lightweight markup language, reStructuredText, Software Development | Leave a Comment »
List of Shell GUIDs for various Windows versions for use in shortcuts and batch files
Posted by jpluimers on 2019/01/09
In my search for starting the Windows Credential Manager from the console, I found [WayBack] Credential Manager Shortcut – Create – Windows 7 Help Forums explaining:
%windir%\explorer.exe shell:::{1206F5F1-0569-412C-8FEC-3204630DFB70}
This reminded me of From batch file or shortcut: start Windows Update (via: Windows 7 Help Forums) and batch-file trick: Starting Windows Explorer and selecting a file (“explorer” commandline parameters “/n” “/e” “/select” “/root” “/start” site:microsoft.com).
The odd thing is that some of the GUID shortcuts works fine using the shell::: syntax, but fail with the /e:: syntax, for instance Windows Update until Windows 8.1:
%windir%\explorer.exe shell:::{36eef7db-88ad-4e81-ad49-0e313f0c35f8}
%windir%\explorer.exe /e,::{36eef7db-88ad-4e81-ad49-0e313f0c35f8}
One day I’ll create a table of permutations for various Windows versions and execute options.
For now these links need to suffice:
- [WayBack] CLSID Key (GUID) Shortcuts List for Windows 10 Windows 10 Customization Tutorials
- [WayBack] CLSID Key (GUID) Shortcuts List for Windows 8
- [WayBack] CLSID Key List for Windows 7 – Windows 7 Help Forums
- [WayBack] SOLVED Creating 23 desktop icons similar to Windows 7 Start menu to – Microsoft Community
- [Archive.is] Understanding Windows 7’s ‘GodMode’ – CNET
- [Archive.is] Windows 7 has lots of ‘GodModes’ (exclusive) – CNET
–jeroen
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Posted in Batch-Files, Development, Power User, Scripting, Software Development, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows 9 | 1 Comment »
Delphi sorcery: Loop wars – measuring performance
Posted by jpluimers on 2019/01/08
[WayBack] Delphi sorcery: Loop wars – measuring performance – already showing some nice optimisations that should have been in the RTL into the first place, – sprouted into a nice discussion at [WayBack] Since there was this offtopic argument going on about performance of for-in versus for-to. – Stefan Glienke – Google+ with some relatively straightforward forand for ... in loop compiler optimizations that could be done, but we have dreamt of for like the last decade or two.
–jeroen
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DBA Blog 2.0: Installing Zabbix into Azure using a MySQL PaaS
Posted by jpluimers on 2019/01/04
Interesting: [WayBack] DBA Blog 2.0: Installing Zabbix into Azure using a MySQL PaaS
–jeroen
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Posted in *nix, Azure Cloud, Cloud, Cloud Development, Development, Infrastructure, Monitoring, Power User, Software Development, Windows Azure, Zabbix | Leave a Comment »
The IOTAComponent.SetPropByName, when used for an integer property, always sets that property to 0 instead of the desired value.
Posted by jpluimers on 2019/01/03
Reminder to self: [WayBack] …The IOTAComponent method SetPropByName, when used for an integer property, always sets that property to 0 instead of the desired value…. – Thomas Mueller (dummzeuch) – Google+
Fix in GExperts for the Rename Component functionality in [WayBack] GExperts / Code / Commit [r2318]: Workaround for an apparent OTA-bug: IOTAComponent.SetPropByName for integers always sets the property to 0 instead of the given value. Now we compare the values and if they don’t match use RTTY on the NativeObject to set it. This seems to work. (The bug exists on Delphi 2007 and 10.2, I haven’t tested other versions. The bugfix also works on these versions.):
VInteger := StrToInt(Value);
Result := AComponent.SetPropByName(PropertyName, VInteger);
+ if AComponent.GetPropValueByName(PropertyName, TempInt) then begin
+ // Setting an integer property often (always?) fails, so we check the value here and if
+ // it is different, we use the native object to set the value. This works.
+ // (Example: Try to set the Interval property of a TTimer. It always gets set to 0.)
+ // This happens in Delphi 2007 and 10.2, I haven't tested other versions.)
+ // -- 2018-07-16 twm
+ if TempInt <> VInteger then
+ SetPropValue(NativeObject, PropertyName, VInteger);
+ end;
Only the IOTAComponent interface is mentioned (only once!) in the documentation at [Archive.is] Using Editor Interfaces – RAD Studio, so I have ambivalent feelings on how important this is for Embarcadero to fix IOTAComponent.SetPropByName.
It has been broken since at least Delphi 2007 as per GExperts fix and XE3 as per [RSP-20895] IOTAComponent.SetPropByName always sets an integer to zero – Embarcadero Technologies.
–jeroen
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Posted in Delphi, Development, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 