The Wiert Corner – irregular stream of stuff

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

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Archive for April, 2015

Find an installed tf.exe, then run it with the command-line parameters specified.

Posted by jpluimers on 2015/04/30

Often I want to execute a TF.exe from the console, but don’t have the Visual Studio environment variables setup. Most of the times I want to run TF.exe from the most current Visual Studio installation, hence this TF.bat file figures out the location of it, then runs with the parameters passed to TF.bat: Read the rest of this entry »

Posted in .NET, Development, Software Development, Visual Studio 11, Visual Studio 2005, Visual Studio 2008, Visual Studio 2010, Visual Studio 2013, Visual Studio 2014, Visual Studio and tools | 1 Comment »

The Clickjacking attack, X-Frame-Options

Posted by jpluimers on 2015/04/29

Front-end web development isn’t my core area of expertise, but every now and then I am slightly more than the usual spectator and do get involved.

This case it was about helping to prevent The Clickjacking attack by using the The X-Frame-Options response header from RFC 7034.

Lots of people seem to have questions about it: Highest Voted ‘x-frame-options’ Questions – Stack Overflow.

So, from The X-Frame-Options response header:

There are three possible values for X-Frame-Options:

DENY
The page cannot be displayed in a frame, regardless of the site attempting to do so.
SAMEORIGIN
The page can only be displayed in a frame on the same origin as the page itself.
ALLOW-FROM uri
The page can only be displayed in a frame on the specified origin.

–jeroen

via:

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

Some interesting demographics on the G+ Delphi Developers community

Posted by jpluimers on 2015/04/28

Stefan Glienke started some interesting demographics polls on the G+ Delphi community.

Demographics are about group members that actually voted. Which might rule out Delphi programmers not writing English well.

Despite that, I think it actually tells a lot, especially when you read the comments as well.

And it made DavidI provide some background on the geographic distribution: Where in the world are programmers using Delphi? – Blogs.

–jeroen

Posted in Delphi, Development, Software Development | 3 Comments »

CRC: The C Stands for Confusion (quotes from the Dr Dobb’s article)

Posted by jpluimers on 2015/04/28

The CRC algorithm isn’t hard, but choosing the right polynomial and parameters can be tricky especially since there are so many permutations to choose from and lots of libraries have made their own (often incompatible) choices.

 A few quotes

Basics:       Read the rest of this entry »

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

P2V of an existing XP machine to Hyper-V to have an emergency fallback when retiring old XP physical machines

Posted by jpluimers on 2015/04/27

Edit 20210727:

  • A lot of the links below have died due to link rot (sometimes even the domains have gone), but most of the WayBack machine links marked [Wayback] still work.
  • The same stop [Wayback] stop 0x0000007B can happen when converting a physical machine to VMware (I will schedule a separate post about this):

    Windows XP Virtual Machine failing with stop 0x0000007B

    Windows XP Virtual Machine failing with stop 0x0000007B

Steps:

  1. Put the SATA disk of the XP machine in a different one.
  2. Disk2Vhd on the new machine to create a VHDX of the XP hard disk.
  3. Install Hyper-V on the target Windows 8.1 machine (you need at least Pro for that).
  4. Setup the base VM directory.
  5. Setup a virtual network switch (decide if you want it to be internal, external or private, then bind it to a network adapter if needed).
  6. Add a new VM.
  7. Assign a new directory to it.
  8. Assign memory to it.
  9. Assign the virtual network switch to it.
  10. Save it.
  11. Edit the settings, then bind the DVD drive on the IDE controller 1 to C:\Windows\System32\vmguest.iso.
  12. Connect to the VM.
  13. Start it.
  14. If you get a stop 0x0000007B (usually because of SATA/AHCI/IDE or other MassStorage controller driver issues), then read [Wayback] Jon’s Project Blog » disk2vhd using [WaybackUBCD for Windows to solve the issue as there is no BIOS screen in Hyper-V that allows you to switch from AHCI to SATA and back.
  15. Note: you cannot perform UBCD4Win when you access the Hyper-V host through Microsoft Remote Desktop (the mouse will not work at all, and most keyboard shortcuts will not work either; [WaybackVirtual Machine Connection Key Combinations with Hyper-V – Ben Armstrong – Site Home – MSDN Blogs does not apply).
  16. Boot.
  17. Register Windows (you might need to do extra work to go from OEM to Retail here).
  18. Remove hidden devices that are not used any more and their drivers.
  19. Setup a backup schedule.

Some links that helped me get at these steps:

–jeroen

Posted in BIOS, Boot, Hyper-V, Internet, link rot, Power User, Virtualization, Windows, Windows 8, Windows 8.1, Windows XP, WWW - the World Wide Web of information | Leave a Comment »

Building a better 3D printer (with software!) with OctoPrint’s Gina Häußge on the Hanselminutes Technology Podcast: Fresh Air for Developers

Posted by jpluimers on 2015/04/24

Interesting podcast:

Scott talks to Gina Häußge, creator of OctoPrint. In very short order OctoPrint has gone from a small side project to Gina’s full time open source job!

OctoPrint gives your 3D Printer:

  • a camera,
  • a print queue,
  • visualizers,
  • temperature control and
  • much more!

Gina shares her journey in this Maker episode.

You can even request new features.

–jeroen

via: Building a better 3D printer (with software!) with OctoPrint’s Gina Häußge on the Hanselminutes Technology Podcast: Fresh Air for Developers.

Posted in 3D printing, Power User | Leave a Comment »

PowerShell reads: links to coverage of One-Liners about PowerShell features (using, language, etc)

Posted by jpluimers on 2015/04/23

Boy, I wish I had read these PowerShell articles earlier:

  1. PowerShell One-Liners: Help, Syntax, Display and Files.
  2. PowerShell One-Liners: Variables, Parameters, Properties, and Objects.
  3. PowerShell One-Liners: Collections, Hashtables, Arrays and Strings.
  4. PowerShell One-Liners: Accessing, Handling and Writing Data.

Besides being in depth, the articles also contain a ton of examples all in this form:

Action Command Example
Basic help for x Get-Help cmd (cmd is a full name) help Get-ChildItem
Help in separate window Show-Command cmd; then select the help icon Show-Command Get-ChildItem

–jeroen

Posted in CommandLine, Development, PowerShell, Software Development | Leave a Comment »

Delphi XE8 things I learned from the second week of G+ reading

Posted by jpluimers on 2015/04/22

General XE8 news:

Components/tools/libraries updated to XE8:

–jeroen

via:

Delphi XE8 things I learned from the first week of G+ reading « The Wiert Corner – irregular stream of stuff.

Posted in Castalia, Delphi, Delphi XE8, Development, Software Development | 1 Comment »

Coding Kata videos: Bowling game

Posted by jpluimers on 2015/04/22

A long and shorter while ago, I wrote about practicing your coding and test driven development skills:

Here are some Coding Kata videos of the Bowling Game Kata in various languages and environments. Some of them are dumb (no audio) just like good practice usually is. Note: it helps to know a bit about 10 Pin Bowling Scoring rules.

And since I want to learn Haskell and have done a lot of Tic-Tac-Toe demos inthe past:

For more background information:

–jeroen

Posted in .NET, C#, C# 1.0, C# 2.0, C# 3.0, C# 4.0, C# 5.0, C# 6 (Roslyn), Development, Java, Python, RemObjects C#, Ruby, Software Development | Leave a Comment »

Delphi on Windows x64: solution when project compiles fine under IDE, but not using MSBuild

Posted by jpluimers on 2015/04/21

Especially when using Delphi 2007 on Windows x64 system (8.x, 7, Vista, 2012 Server, 2008 Server, …), the Delphi specific .Targets files used by msbuild are simply installed to the wrong location.

A better warning for this is in my BeSharp.net repository: Run-Dependend-rsvars-From-Path.bat thanks to David Millington who wrote this:

If you copy

  • Borland.Common.Targets
  • Borland.Cpp.Targets
  • Borland.Delphi.Targets
  • Borland.Group.Targets

from

  • %windir%\Microsoft.NET\Framework\v2.0.50727

to

  • %windir%\Microsoft.NET\Framework64\v2.0.50727

then building via the command line works.

The rsvars.bat file is correct.

Note that my batch file checks for all target file sets:

Delphi 2007:

  set requiredTargets=Borland.Common.Targets Borland.Cpp.Targets Borland.Delphi.Targets Borland.Group.Targets

Delphi 2009 and up:

  set requiredTargets=CodeGear.Common.Targets CodeGear.Cpp.Targets CodeGear.Delphi.Targets CodeGear.Deployment.Targets CodeGear.Group.Targets CodeGear.Idl.Targets CodeGear.Profiles.Targets
  if %bdsVersion%==8 set requiredTargets=CodeGear.Common.Targets CodeGear.Cpp.Targets CodeGear.Delphi.Targets CodeGear.Group.Targets CodeGear.Idl.Targets
  if %bdsVersion%==13 set requiredTargets=CodeGear.Common.Targets CodeGear.Cpp.Targets CodeGear.Delphi.Targets CodeGear.Deployment.Targets CodeGear.Group.Targets CodeGear.Profiles.Targets

 

–jeroen

via [WayBack] QualityCentral: Project compiles fine under IDE, but not using MSBuild.

Posted in Delphi, Delphi 2007, Delphi 2009, Delphi 2010, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, QC, Software Development | 3 Comments »