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i came across some Objective C code as follows
-(void)sChart:(ShinobiChart *)chart alterLabel:(UILabel *)label forDatapoint: (SChartDataPoint *)datapoint atSliceIndex:(int)index inRadialSeries:(SChartRadialSeries*)series// End
I want to convert it to C# for use in Xamarin. I havent been able to try as I dont know any objective C.
What would be the equivalent C# code?
thanks in advance.
You can't just grab and use an Objective-C library with Xamarin/C#. To use 3rd party native Objective-C code with Xamarin, you need to have bindings available for that library or you need to create bindings by yourself.
When creating binding you have luxury to decide how your C# equivalent code is going to look like. Though it should resemble original Objective-C library as much as possible while keeping in mind C# coding conventions and best practices.
Here is more info about creating Xamarin bindings for an Objective-C library.
http://docs.xamarin.com/guides/ios/advanced_topics/binding_objective-c/binding_objc_libs/
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I have a native c++ dll which contains some templates classes. And I need this dll in my c# code.
So I am using managed c++ for the c++ dll in order to use it in the c# code, but I have a big problem on how using the template classes in .Net.
Please if you guys have some solutions to this, it will very helpful.
Thanks!
read C++ instantiate template class from DLL to make sure you're not falling down a common rabbit hole.
Read about IntPtr and Interoperability
Try putting it all together, and then post a new question which has a specific problem.
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I have to write a C++ Dll to wrap an existing C++ Dll so it can be declared in C# because the existing C++ API is just too complicated (functions returning pointers to unions within structs within structs). Is there any best practice for this? For instance:
What's the best way of declaring a string from C++ to C#?
Is it better to have C++ functions using pointers or references?
It depends on how many functions you wish to export and if you wish to export them only to c#.
If you answer yes to one of these then I recommend using swig as functions will get generated for you automatically
Here is a link
http://www.swig.org/tutorial.html
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I am working on a project where I need to use a wrapper written in C++ to transfer messages across servers through c# code. The client applications are written in c#, but the message bus that I have to use doesn't work directly with .NET, so C++ wrapper to the rescue.
I hope that this makes sense, and any help would be great. Thanks
You can call C++ contained in a dll from C# using Platform Invoke. http://msdn.microsoft.com/en-us/library/aa288468%28v=vs.71%29.aspx. In this case it is actually the C# code wrapping the C++ code.
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I have done some development in C# and I love the language and the environment. I am taking a Perl class, and yes it sounds like easy learning curve, but there are some questions which I think need to be asked essentially as a server-side developer.
So far, if I want to create a stripped-down program which runs on a Windows machine then I can create a console application. C# + .NET are good enough that I can achieve most of the functionality.
Now, when scripting languages come into picture, I agree that they are easy to use and easy to write. The languages have super-rich functional libraries. But is is just a choice that we make to use a scripting language as opposed to a fully-fledged framework like .NET? Or are there some things that only scripting languages can do, and would be very difficult to achieve from languages like C# and Java?
C# is Turing-complete, so the answer to your question is "no".
.NET has nothing to do with your question; other languages have their own "full fledged framework"s (or more than one).
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how to create a browser plug in using C#? (something like Flash Player or Unity3d)
This cannot be done using C# only.
WebKit is C++-based, so you'd need at least a C++ wrapper in order to let the browser communicate with your code. Using a mixed-mode C++ DLL that talks to WebKit on one side and to your C# code on the other side should be considered.
The WebKit site does not contain much docs (don't want to criticize, but I couldn't find much there when working with Chromium). Only Apple docs explain plug-ins, but it looks very Apple-oriented. Sorry, not very helpful.