DNP3 with VB.Net - vb.net

I am looking for a good DNP3 library for .NET/VB applications.
Any recommendations?
Thanks,

The open-dnp3 project has recently added .NET bindings:
code.google.com/p/dnp3

Automatak maintains a fork of the opendnp3 library with .NET bindings:
http://automatak.com/opendnp3/
We have heard from users that opendnp3 significantly outperforms the TMW library for large master integrations.
Opendnp3 is Apache-licensed (free-to-use), but commercial support is available if you get stuck.

All I could find with a Google search was Trianble MicroWorks' .NET Protocol Components.
It looks like they're not exactly on top of the latest technology (it lists itself as .NET framework 2.0 compatible), but I wasn't able to find anything else that looked terribly promising.

I've managed to build the Automatak version of this library:
https://github.com/automatak/dnp3
and use the .NET bindings with C#, though they would work equally well with VB.

OpenDNP3 from automak is available in Nuget, but you should install 32bit openssl application to able to load it.It installs two required .dll files.

Related

Programming with MAF (and MEF) on Mono

I am currently working as an internship in a company who wants to make software for the linux platform. Since they are a .Net minded company, they want me to look into mono.
I kinda have to look if it is stable for their applications and server apps.
I am now studying the MEF and MAF ( Managed AddIn Framework ) frameworks in mono.
Does anyone have some experience in building applications with the MEF and MAF framework in MONO? Did you experience some problems on mono etc? (and solutions are welcome (: )
I tested some easy tutorial code of MEF and that worked fine with mono (although I didn't use all functions they give me).
About MAF I didn't find that much that could help me. Any links that could help me?
To be more specific, I wonder if there exists some posts about MONO & MAF if it works or not.
I already thank you for reading my question,
Benjamin
MEF works on Mono, once you apply 2 patches so that it works on case-sensitive file systems. Mono 2.8 will ship with MEF in the next few weeks: http://mono-project.com/Release_Notes_Mono_2.8.
I use MEF for Pinta on .Net and Mono: http://github.com/jpobst/Pinta. My usage is trivial, but it works great.
I do not know anything about MAF.
I am pretty sure MAF is not and will not be available on Mono.
The source code to MEF was released with a license that allowed it to be incorporated into Mono. The source code to MAF has not been released at all as far as I know, and I don't think there is any interest in rewriting it for Mono.
The equivalent of MAF in Mono is Mono.Addins. I think it's not quite the same API as MAF, but it provides the same functionality.
An open source implementation of MAF can be found here System.AddIn Its not 100% feature complete but can be used on Linux, with mono, running addins in separate processes.

What happened to ManagedSpy?

ManagedSpy is supposed to be the .NET equivalent of Spy++, but somehow the download page is now not availeble any more.
Anyone who knows why?
Anyone that knows a replacement?
--jeroen
I've cloned the original ManagedSpy source code and maintaining the code in modern environments (for example, ported it to .NET4).
See project on GitHub.
You can still download it here, but the original website seems to be gone. There is however still an article in MSDN (from 2006) about ManagedSpy.
I've cloned the ForNeVeR's ManagedSpy source code and changed a bit to support 64-bit process. see https://github.com/slimzhao/ManagedSpy
Is there a newer equivlent tool? ManagedSpy fails completely on .NET 4.0 enabled machines because Native Images existing under \Windows\Assembly* and it tries loading those as .NET assemblies and fails.

Is the Reactive Framework (RX) available for use in Mono yet?

Been searching but the only thing I found was http://evain.net/blog/articles/2009/07/30/rebasing-system-reactive-to-the-net-clr which I got to work, but it feels like there should be a simpler way, specially since rx was first release back in mid 09.
You can now download it for .NET 3.5SP1 and .NET 4, so I wouldn't be at al surprised if it just worked against recent releases of Mono - no Silverlight doohickies required at all.
Having said that, I haven't tried it at all against Mono :)
Last time I tried, it did not work since one of the assemblies referenced either a native win32 dll or some framework dll not implemented by mono. However, there has been at least one release of Rx since I tried.
Yes, although I haven't tried it myself.
You can find mono-reactive at https://github.com/atsushieno/mono-reactive.
I've been playing around with it for a while and I've found that the .NET 3.5 SP1 binaries from Microsoft work on Mono 2.6.x. However, as of yet I haven't been able to get the .NET 4 binaries to work. It seems they expect IObserver/IObservable (possibly other stuff?) to be present in mscorlib.dll, which is not the case in Mono 2.6.x. Unfortunately this means no covariant/contravariant versions of IObservable/IObserver under 2.6.x.
Haven't yet dug through Mono's svn to see if I could get it working that way.
If you'll look at .gitmodules of mono repository you'll find reference to external RX repository which I expect will be the part of future mono distributions (Mono 3.0.1 doesn't contain it yet).

Are XmlMtomReader and XmlMtomWriter fully implemented in Mono project?

I'm working on a cross-platform solution currently. The solution uses XmlMtomReader and XmlMtomWriter from .NET framework 3.0.
Now i need to know if these two classes (and all the nessasary infrastructure around them) are fully supported in Mono project from the porting-it-to-linux point of view. :)
You can check it on the mono status:
http://go-mono.com/status/
You can also check your code using the mono migration analyser
http://www.mono-project.com/MoMA
I checked they are currently not implemented
The APIs are available on the current Mono 2.6 preview, but they are not available on the 2.4 release (the current official release).

How to write a cross-platform program?

Greetings,
I want to write a small cross-platform utility program with GUI in it. What language/GUI-library should I stick to? Is it possible whatsoever?
This is gonna be a small program, so I don't want to make people download JVM or .NET Framework. Is it possible to develop it natively?
Update 1.
By "natively" I mean that the end result will be native code without intermediate layers like Java Virtual Machine or .NET Common Language Runtime
Update 2.
A FREE solution is preferable ;)
If you know C or C++ the first cross platform GUI framework I can think of are:
QT (C++, proprietary but free with the LGPL licensing)
wxWidgets (C++, the most complete and stable but also huge)
FLTK (C++)
FOX (C++)
IUP (C, simpler and cleaner than the ones above)
If you know Pascal, you can try freepascal+Lazarus. I've never used it, though.
The problem is: If you do not want to have a GUI but you do not want to ask the user to download an eternal API, Framework or virtual machine to run it in, be it TCL/TK, Java or QT etc. then you get lost pretty fast.
The reason is: You would have to rebuild all the (GUI) functionality those APIs, frameworks and virtual machines provide you with to be platform independent. And that's a whole lot of work to do... .
On the other side: The Java virtual machine is installed on nearly any operating system from scratch, why not give this one a shot?
You want to develop a cross-platform program natively? Uh...I don't think that'll work, mainly because that phrase is a paradox. If you write native code, it by its very nature will only run on the platform you programmed it for. ;-) That's what the Frameworks are all about.
So what you should do instead is use a very slim framework if your program is going to be so small. itsmatt's idea of Qt is a possibility.
WxWindows? Oh, it's called WxWidgets now: http://www.wxwidgets.org/
wxWidgets has bindings to all sorts of languages - python for instance, if your app is small enough.
Lazarus is great. GTK2 on Linux, win32/64 on Windows, WINCE on euh, Wince. It even uses Carbon on Mac (working on COCOA). Also easy to sell to your boss (the code is Delphi compatible)
How about Python using Qt or Wx and then using PythonToExe to make a 'distributable'
Thought will have to giving to the development to ensure that no native functionality is used (i.e. registry etc.) Also things like line breaks in text files will have different escape characters so will need to be handled
Which OS's do you have in mind when you say cross-platform?
As Epaga correctly points out, native and cross-platform are mutually exclusive. You can either write multiple versions that run natively on multiple platforms, or you need to use some cross-platform framework.
In the case of the cross-platform framework approach, there will always be extra installs required. For example, many here suggest using Python and one of its frameworks. This would necessitate instructing people to install python - and potentially the framework - first.
If you are aiming at Windows and OS X (and are prepared to experiment with alpha-release code for Linux if support for that OS is required), I'd highly recommend you take a look at using Adobe AIR for cross-platform GUI applications.
I agree with Georgi, Java is the way to go. With a bit of work, you can make your desktop application work as a Java applet too (so that users do not need to actively download anything at all). See http://www.geogebra.org as an example of an application with runs smoothly as a cross-platform Java application AND has a simple port to a web applet.
Two other advantages to using Java are:
They have extensive libraries for building the UI, including UI component builders.
The Java runtime framework is generally updated automatically for the user.
One disadvantage:
The version of Java installed on your end users computer may not be totally compatible with your application, requiring you to code to the lowest likely denominator.
Try RealBasic. Visual Basic-like syntax, targets Win32, OS X and Linux. I don't know any details about targetting Linux, but for any cross-platform development I've done between Win32 and OS X its been a dream.
http://www.realbasic.com
Edit: Generates native executables. There is a small cost - $100.
Have you looked at Qt?
Flash? It's installed pretty much everywhere.
If it "HAS" to be Desktop use Qt. Nothing beats it right now.
However personally I gave up on desktop and any UI based project I do is normally Browser/Server based. You can easily write a little custom server that listens to some port so the program can run locally with no need for your users to install Apache or have access to the net. I have a small Lua, Python and C++ framework I made for that purpose (Want to add Javascript for the backend with V8 :)
If you're going to look at Qt and WxWidgets, don't forget to also check out GTK+ !
I agree with David Wees and Georgi,
Java is cross-platformness par excellence. You literally write once and run everywhere. With no need of compiling your code for each target OS or bitness, no worries about linking against anything, etc.
Only thing is, as you pointed out, that a JRE must be installed, but it's quick and straightforward to do even for novice end-users (it's a matter of clicking "Next>" a few times in the installer).
And with Java Web Start deployment gets even easier: the user just clicks the launch button on a webpage and the application runs (if the proper JVM is installed according to what specified in the JNLP descriptor) or the user gets redirected to the Java download page (if no suitable JVM is found).