Coverage about qtsharp

[ddobrev]

@ShalokShalom Qt# is already in beta, you can find links to the releases and examples in the README. The only major missing piece is template classes and members which I have almost completed.

[ddobrev]

When C# code is compiled, it turns into Microsoft's intermediate language which can be used by any .NET language. So yes, you can use Qt# with F#.
You cannot use QML with F# yet for the same reason you cannot use it with C# - it's a feature not implemented yet.

[ddobrev]

When Qt# is compiled, you just add references to it from your F# code and work. That's it.

[ShalokShalom]

I can even draw QML

[ShalokShalom]

And so far as I get this .Net framework thing, is it possible to use C# to call QML in order to embed that combination into a F# project, yes?

[ddobrev]

@ShalokShalom Support for QML needs work on its own so that QML code can affect C# and vice versa (just as it is with C++ and QML). I hope to be able to complete this feature by the end of the year if we're talking about my free time.

[ShalokShalom]

I mean: Is it the possible to use Qt/QML with F#? Simply by calling it through C#?
.Net compiles all down to CIL?

[ddobrev]

If Qt# worked with QML, using it with F# would've been possible too, yes.

[ShalokShalom]

Cuz your documentation speaks about C# only. Might be nice to change this, if it applies to all languages of the .Net platform. 👍

This project aims to create Mono/.NET libraries that wrap Qt (https://qt-project.org/) thus enabling its usage through C#

[ddobrev]

@ShalokShalom your suggestion makes perfect sense. Could you please send a pull request with the change?

[ShalokShalom]

Already done, thanks.

[ShalokShalom]

Yeah, as I thought.

[ShalokShalom]

"For now, Qt MinGW for Windows has been the only tested version. Qt for OS X and Linux are planned."

Is this still the case?

The Atomic Game Engine is currently shifting its course, since the current previous maintainer is left. Qt/KDE is a possible solution for their UI, which makes QtSharp an essential player in this concept. 😄

For this, support on the major platforms is important.
Thanks a lot for your support. 😃

[ddobrev]

@ShalokShalom I haven't stopped working, it's just there's quite some more to do. I need to finish the templates first and then I'll spare time on proper Unix support.

[ShalokShalom]

Thanks a lot.

[ShalokShalom]

Well, I just found out, that the imperative and object oriented code in F-Sharp looks and works exactly like in C# - this means, so far as I am concerned, that you could easily port your QtSharp onto F#, so we can use inline there?

[ddobrev]

C# produces regular .NET code which can be consumed by any .NET language, F# included.

[ShalokShalom]

Yes. the thing is, that you use C# to call the Qt functions, yes?

[ShalokShalom]

Do you mean it makes less difference, if the file is called .cs or .fs?

Do be honest: I have less idea, how a sophisticated app will look, is there much C# specific code too write, in order to call Qt?

[ShalokShalom]

Ok, thanks. :)

[pauldotknopf]

If you need Qml integration, I am working on a project that does exactly this. I'd consider it usable for production.

https://github.com/pauldotknopf/net-core-qml

[ShalokShalom]

Oh, interesting...

[ShalokShalom]

Oh, no F# API, so I prefer Fable for QML development. Thanks anyway, maybe someone writes an API sometimes.

[pauldotknopf]

I'm not sure what Fable is. Care to explain quickly? And how does that relate to Qt?

[ShalokShalom]

Fable translates F# to JavaScript and QML is practically simply a superset of JS.
You can import JS files in your QML code

[pauldotknopf]

Sure, you can translate F# (or even C#) to JS, but you can't use .NET.

With the project I shared, you can use the full .NET runtime. I'm not sure you'd actually want to transpile Qml javascript, since they have unique (and useful) syntax for signals/etc.

[ShalokShalom]

With the project you shared, there is no F-Sharp implementation. I am a functional programmer by heart.

[pauldotknopf]

Why would you even want to use F# with Qt (which is inherently object oriented)?

Also, Qml.Net is a .NET library, which is reference-able from F# (.NET).

But again, you'd be working against the grain because Qt (and C++) is inherently/fundamentally object-oriented.

Having this "F# implementation" isn't practical, nor does it even make sense.

[ShalokShalom]

QML is declarative

[pauldotknopf]

To an extent it is, in that you can define the initial object hierarchy declaratively, but beyond that it is entirely object-oriented, not even close to functional.

Something tells me that you don't even know what you're looking for.

Good luck with that.