xamarin is it free to use for commercial purpose? [closed] - xamarin.ios

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It is confusing with licensing about Xamarin. My Question is "If I develop an application using Xamarin", then can I use for commercial purpose?
Kindly suggest.

Since you ask about free, I assume you mean the Indie Starter edition.
From their FAQ:
For developers just getting started with Xamarin, we're introducing Starter edition, a freely-available version that supports device deployment and app store publishing for small apps with no third-party native library dependencies and less than 32k of compiled C# code.
(my highlight)
Since all editions above the Starter just add to this, then yes, you can use it for commercial purposes.
You should check that FAQ for a lot of other scenarios.

Here is a good news for you.
Xamarin for Everyone
You can Visit the Xamarin Store.
Build C# apps on Android, iOS, Windows, and Mac with Xamarin.(store)
Xamarin has also launched Contest: Get Answering on Stack Overflow
Because of this contest it is going to be easy for the new users to jump into Xamarin.

Depending on your company size (and some other restrictions), yes Xamarin in now free for commercial use. For more, information please see the following links:
Mobile Development Made Easy with Visual Studio and Xamarin
Xamarin Pricing

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Learning sources for UWP (Universal windows platform) [closed]

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Can you give me some good learning sources for UWP App development?
Currently I use the "Windows 10 development for absolute beginners" series on channel9. But it's not going in the depth.
I'd like to learn more about the anatomy of UWP apps and also some more advanced topics.
I recommend looking at MVA courses on the topics and level you need.
This one is a very comprehensive course. You can pick the modules of your interest - just note that it was updated in Aug 2015 and some things might have changed in the meantime. There are plenty of other resources that you can look at after that.
Please check below sources:
First one is official UWP guideline how to create apps. You can find here many different descriptions how to implement design of your app. Below you can download it as a PDF file:
http://go.microsoft.com/fwlink/p/?LinkId=626098
Second source can be official MSDN website with samples and descriptions related to Universal Windows 10 Apps:
https://developer.microsoft.com/en-us/windows/design
If you would like to create first simple Universal Windows 10 App I also recommend my blog where you can find many different articles connected with UWP:
https://mobileprogrammerblog.wordpress.com/2015/08/23/first-windows-10-universal-application-jump-start/
Hope this will help you.
Also check Windows-universal-samples from github. You can find code samples for everything you want to do with the platform straight from Microsoft.

Downloading VS 2012 ultimate - free? [closed]

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It appears that I can download Visual Studio 2012 Ultimate from this Microsoft Site, but I couldn't find any licensing related information (cost/keys etc) on that page.
Is Visual Studio 2012 free software?
The Visual Studio article on Wikipedia notes the license type as:
Express edition: Registerware
Other editions: Trialware
Not an authoritative source, I admit, but it would explain why it seems you can download it for free, because you actually have to register and pay (for the non-Express editions) at some point, or the trial would run out.
From what I've read, this isn't just a trial, but the main loss is not having an advanced MSDN membership. There are certainly paid versions and subscriptions, but it looks like this is genuinely free, albeit without some added support and benefits.
See http://www.microsoftstore.com/store/msusa/en_US/pdp/Visual-Studio-Professional-2012/productID.254639600 and https://msdn.microsoft.com/en-us/subscriptions/downloads/. A couple quick Google searches uncover many people who are just as perplexed as to why Microsoft would do this.

How to download Platform Builder for Windows CE 5.0? [closed]

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I'm developing an application on a device that has Windows CE 5.0.
I need to change the OS, e.g. language installation & ... , and it seems that i need an IDE named Microsoft Platform Builder.
But how can i get it? is there any free release for download?
i googled the web, but got nothing!
There is an evaluation version of Platform Builder that is downloadable. I think it's a 30-day, though it may be more. If you have MSDN, the full version is also part of that. Otherwise you have to buy it from one of the distributors that sell it.
You'll also need a BSP (board support package) for your specific device. That comes from the device OEM, and without it you can't really do anything at all, so make sure you have access to that. If you don't have a BSP, installing Platform Builder is purely a waste of time (well unless you're after the shared source, which I recommend for any app dev).
Note: Microsoft moves things around a lot, plus Windows CE is effectively dead, so the links above may well go stale or just be completely lost to the ether. It's also getting harder to find a distributor for licenses.

Is there any MSDN equivalent for Mac OS and Linux? [closed]

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I'm familiar to code in Windows environment. For some of our products, users are continuously asking for porting to Linux and Mac. To begin, I need a collection of documentation on the system APIs, how to use them, when to use them etc. documentation.
So, is there Is there any MSDN equivalent for Mac OS and Linux? Preferably in a downloadable format?
PS. I'd like to work on Free Pascal/Lazarus or RealBasic.
Well if you get Apple's XCode, you can download all sorts of documentation, tutorials, etc right from within Xcode. Or try the Apple Developer Connection for forums and anything else you can't find links to for in Xcode.
On Linux, you're more forced to individual package websites and man pages unfortunately.
For Linux one place is the Linux Developer Network.
Things I have liked,
The Linux Documentation Project
The Linux Cross Referencer
For Linux, the equivalent is man pages, which are usually part of the distribution, but the development man pages may be in a separate package which isn't part of the default distribution. You access them with the 'man' command.
For Mac, the developer site on developer.apple.com is great. It provides detailed documentation for all of the APIs in an easily searchable and readable format. The documentation is also bundled with XCode, so you don't even need to download it.
The Linux man-pages project is a useful reference for the system APIs. However, a lot of the time you will be using higher-level libraries; each one has its own documentation.
Man pages, and in cases where that doesn't work, the sources. The FPC unix RTL was developed that way.
One of the most common gotchas is the difference between kernel and libc versions of structs.
For XCode, I find this to be a great starting point:
https://developer.apple.com/library/mac/navigation/
You can filter and sort by framework or just search for a function. The search results could be better (i.e. more google-like) though.
If you use Real Studio (Realbasic), then you may find you don't need to bother knowing all the OS APIs (although you can access them if necessary). The Real Studio docs are online here:
http://docs.realsoftware.com

Promote a free library on the web [closed]

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I have nearly finished a free spellchecker library for Windows Mobile, and there are a few great forums around (both for developers and end-users), such as XDA, where you can promote your creations for Windows Mobile.
However, I have been thinking that I'd like to make a version of my library available for Windows desktop developers as well. Once I have finished the same, I'd like to distribute and promote it to get feedback, bug reports, and suggestions.
Are there good developer forums for promoting and distributing applications or libraries in this way?
You might want to consider writing an introductory review of your own library, and publish it on sites such as codeguru.com or codeproject.com. You could also use blogs of popular sites such as ddj.com to promote your library.
On the other hand, one very simple thing to do would be to set up a sourceforge project for your library (if it's open source) and then use their facilities for all these purposes. Specifically, you can easily use freshmeat.net to make your library more widely known.
You will need a certain minimum infrastructure (forum/mailing list, issue tracker and possibly source code management) in order to provide a place for your users to easily monitor or possibly even participate actively in your project.
A simple homepage and yahoo list might very well suffice, though.
Also, looking into available spell checking libraries in general, you will probably want to highlight the major differences between your implementation/project and more established ones such as for example GNU aspell or hunspell.
So, do make sure to do some research in order to get to know related projects.

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