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

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Archive for February, 2016

Delphi: forward declaration of classes and interfaces, but no records.

Posted by jpluimers on 2016/02/24

As Delphi allows to forward declare both classes and interfaces, people often wonder about records.

The short answer: you can’t forward declare record types.

The long answer: you can’t directly, but you can indirectly either reference based (through pointers or callbacks with const parameters) or operator based (through operator overloading).

I think the reason forward declaration of classes and interfaces is possible because they both are reference types, so referring does not impose copying.

Anyway, the trick is this:

You can’t have forward declarations for record types. Define both Implicit operators in the second type

Source: delphi – How do I define implicit conversion operators for mutually dependent records? – Stack Overflow

–jeroen

via:

Posted in Delphi, Delphi 10 Seattle, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | Leave a Comment »

FastMM4 moved from SF.net to GitHub – pleriche/FastMM4@245706d

Posted by jpluimers on 2016/02/23

Updated the homepage in the source and readme to reflect the move to GitHub.

Source: pleriche/FastMM4@245706d

In related news: Primož Gabrijelčič is contributing to it as well: his pull request got processed https://github.com/pleriche/FastMM4/pull/1 implemented FastReallocMem logger.

–jeroen

via: Edwin Yip Delphi Developers

 

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

nunit – How can I view .NET trace logs in TeamCity? – Stack Overflow

Posted by jpluimers on 2016/02/23

This indeed works very well:

All console output is shown in the build log.

So when you need more context on tests that succeed, you can just output them on the Console.

A practical use: testing the sending of SMS messages over HTTPS where the intermediate proxy can change and was giving different effects.

Logging the actual proxy used correlated some run-time findings. Based on that we could write better tests.

–jeroen

via: nunit – How can I view .NET trace logs in TeamCity? – Stack Overflow.

Posted in .NET, Agile, C#, Continuous Integration, Development, MSTest, Software Development, TeamCity, Testing.NET, Unit Testing, VSTest | Leave a Comment »

Replace Boxee by Raspberry Pi as most TV support doing video+USB keybard over HDMI

Posted by jpluimers on 2016/02/22

If for instance your Boxee gets old or breaks down, you can use a Raspberry Pi as a replacement with Kodi as media player.

This combination will understand the Video+USB over HDMI which most TV supports officially named HDMI-CEC , but most vendors “invented” their own names (see list below).

The core is the kodi support for CEC.

Basically it comes down to using three cables going to the Pi: Power from TV (or some other source), HDMI to TV, and wired Ethernet. And a distribution for RaspberryPi containing kodi will work, for instance from OpenELEC Mediacenter – Download: Raspberry Pi Builds

Chad MILLER has more details on how to get this to work: My Boxee box is getting old, but I knew of no replacements. The problem is I …

Names known for HDMI-CEC via Wikipedia:

Anynet+ (Samsung), Aquos Link (Sharp), BRAVIA Link and BRAVIA Sync (Sony), HDMI-CEC (Hitachi), E-link (AOC), Kuro Link (Pioneer), INlink (Insignia), CE-Link and Regza Link (Toshiba), RIHD (Remote Interactive over HDMI) (Onkyo), RuncoLink (Runco International), SimpLink (LG), T-Link (ITT), HDAVI Control, EZ-Sync, VIERA Link (Panasonic), EasyLink (Philips), and NetCommand for HDMI (Mitsubishi).

Because of the naming, turning on CEC can be confusing: How to Enable HDMI-CEC on Your TV, and Why You Should

–jeroen

Posted in *nix, *nix-tools, Development, Hardware Development, Hardware Interfacing, HDMI, Linux, Power User, Raspberry Pi | Leave a Comment »

Linking to part of the same document in Markdown (via: Stack Overflow)

Posted by jpluimers on 2016/02/22

I love markdown, but it lacks the ability to directly create destination anchors (but MarkDownExtra however does for headers)

Anchors can be used to link within and between documents, the foundation of web navigation, and also very important inside documentation.

Luckily, Markdown allows inline HTML, so you can add an HTML destination anchor: an a element with either a name or id attribute.

XHTML deprecated the name attribute, but you should actually use it. The reason is that in HTML5, most browsers create a global JavaScript variable for each id id anchor.

In addition, you should not use a self closing a element: only XHTML supports that.

So the Markdown then becomes something like this:

In the heading, you will see the html for the destination anchor, in the link you will see the MarkDown for the internal source anchor..

The above example will render like this:

–jeroen

via: How to link to part of the same document in Markdown? – Stack Overflow.

Posted in MarkDown, Power User | Leave a Comment »

 
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