How to generate Swiss QR Code in C# and VBA

Swiss QR Code in C-Sharp and VBAToday, we are looking into the field of business computer science. Since end of April, SIX has released the specification for the new Swiss QR Code according to ISO 20022. The Swiss QR Code is an integral part of the new Swiss deposit slip, the so-called QR invoice, which shall be implemented by all companies by mid-2018 at the latest. The Swiss QR code is placed in the so-called “number part with QR code” of the QR invoice.
In the following, we will discuss how the Swiss QR code can be generated using C # or VBA. To do this, we use the free QRCoder library, which I developed almost 4 years ago and to which recently added the Swiss QR Code. One more thing before we […]

.NET Core – gdiplus.dll not found in Linux

A few days ago there was an issue raised in my QrCoder project. It was reported that the code would not run under Linux, as the following error message would occur:

Unhandled Exception: System.TypeInitializationException: The type initializer for ‘System.Drawing.KnownColors’ threw an exception.
—> System.TypeInitializationException: The type initializer for ‘System.Drawing.GDIPlus’ threw an exception.
—> System.DllNotFoundException: Unable to load DLL ‘gdiplus.dll’: The specified module could not be found.
(Exception from HRESULT: 0x8007007E)
at System.Drawing.GDIPlus.GdiplusStartup(UInt64& token, GdiplusStartupInput& input,

However the error message had its origin not in my QrCoder, but in the interplay of the .NET core framework with the GDI Plus library. The .NET Core Framework tries to access “gdiplus.dll” when accessing “System.Drawing.GDIPlus”, which is simply not available on Linux.
First solution approach
First, ensure that GDI+ is installed at all. This can be done with the following shell command:

sudo apt-get install libgdiplus

If libgdiplus is installed, however, another important step is missing …
Link libgdiplus for .NET Core
Because the […]

How to fix SSL error 61 in Citrix Web Receiver on Linux

How to fix SSL error 61 in Citrix on LinuxI admit, the title is quite specific and will certainly appeal to only a small readership. But anyone who is facing the problem will be, like me, grateful for a solution.
In particular, the problem is about the SSL error 61 in the Citrix (Web) receiver under Linux and how to fix it. Since I have been running almost exclusively under Kubuntu for several months, the Citrix Reiceiver also moved into the new Linux box. Unfortunately, no connection to systems could be established, since the receiver disconnected with the following error message.
SSL Error 61: You have not chosen to trust “Go Daddy Root Certificate Authority – G2”, the issuer to the server’s security certificate.
Citrix-SSL-Fehler-61What […]

Update: WordPress2Doc

Wordpress2Doc - All-in-OneToday there is again a software update. Since yesterday evening the new version of the WordPress2Doc Tool is available for download. In addition to two bugfixes, further translations have been introduced. Thanks a lot to the community support!
If you have forgot (or not even have known yet), for what the WordPress2Doc-Tool can be used, the following brief summary is given.
Using WordPress2Doc, you can save as many articles and pages of a WordPress blog as a Word document (.docx) and / or as a PDF file. It is possible to select whether all articles should be created in one document or whether a new document should be created for each article. This makes it easy to back up, print, and prepare blog articles for further use.
What’s new in WordPress2Doc
The following things have changed:

Bugfix: After the export […]

Best of Web #7

best of web - runde 7Today it is once again time for another round of “Best of Web”. This week I have a few more links on the hand, I would like to share with you. Overall, it comes back this week to some technical topics – good for geeks and nerds among you, rather poor for lovers of more “lighter fare”. Among others, today is about compilers, the history of Windows, some web design basics and a bit of image recognition in C#. I hope there is one or the other interesting article for everyone.
As always – who has more link tips, is hereby invited to send me these for one of the rounds of my “Best of Web” series. And now have fun with my recommendations of the week.
Quick introduction to compiler construction
On TechPro Tristan McNab explains in […]