I am currently working on a c++ application built with /MT switch and would like to port my application to C# Desktop App. I also plan to use WinRT APIs in the c# desktop app.
Using WinRT APIs in c++ requires the project to be compiled with /MD switch instead of /MT, and i was wondering what kind of problems would I encounter when porting the app to c#.
All the libraries linked in the c++ app are also compiled with the /MT switch.
From what i could find on the internet, its possible to use libraries compiled with either of the above two mentioned switch(using c++/CLI wrapper or P/Invoke).
Related
I'm working on the port of the C# UWP project to Uno-Platform. The original project references a lot of logic from C++ DLLs. The interface between C# and C++ library is rather big to write PInvoke wrappers manually.
Is there any complete solution to automate the calling of C++ library methods from .NET?
The Uno Platform does not provide anything specific for this type of scenarios, and relies on what .NET already provides (P/Invoke in this case).
You may want to take a look at https://github.com/EgorBo/CppPinvokeGenerator or https://github.com/xoofx/CppAst.NET to generate C# from the C++ code.
We have a requirement to import a C++ legacy dll inside C# UWP application and access the methods inside the c++ classes. We don't have the source code with us, So not able to do with the Windows Run time component.
Please let me know how can I import the c++ dll inside the Visual C# universal windows application.
I am able to add the dll as a reference in visual C++ application, But not able to do it in visual C# uwp application. I have tried the dllimport but it is throwing dll not found exception.
Firstly, UWP can't import a legacy C++ dll just by DLLImport.
If you want to import legacy c++ functions to C#, the first suggestion is to wrap that C++ logic using a WinRT component.
And if you want to PInvoke the dll, you can follow these steps (You can refer to this thread): First, add dll into your UWP project making sure to set its type as 'content'. Then in the proper cs file, using DllImport to PInvoke the dll.
In addition, you need to make sure your dll is not using prohibited APIs in WinRT. You can check this by using /ZW compile option for the dll. There is a similar thread, you can refer to it.
I'm using the C++ wrapper in this link:
https://github.com/TekRTSA/RSA_API
In order to use a driver written in C++ inside C# project.
When I publish/release my C# project it doesn't work on other computers without Visual C++.
Is there any way that I can publish my project on computers that don't have the visual C++? Or is there any software package like .NET that I can use in order to make it work?
With .NET applications you need to make sure customers have a version of .NET that matches what you compiled your application with.
With (Microsoft) C++ applications that depend on the C Runtime, you need to make sure customers have a version of the Visual C++ Redistributables that matches what you compiled your application with. Do a google search for 'visual c++ redistributable' and you will see lots of suggestions on what to look for.
I have an UWP C++/cx application and UWP C# class library.
How can i use classes from c# library in c++ project?
C++/CLI not supported by UWP apps so i cant make c++/cli wrapper.
Im not sure but looks like COM wrapping isnt an option in UWP world.
Reverse P/Invoke is not an option as host application is c++
Windows Runtime Component also will require kind of callback from C# code,
but it can be instantiated in c++ code only.
Any suggestions?
P.S.
I cannot have "c# proxy app", my app is of type c++/cx.
Standart uwp c# classlibrary is invisible for c++/cx.
Proxy library "windows runtime component" should be created and added to c++ class.
For a great example of how to do this, check out how ChakraBridge C++/CX project in React Native Windows is used:
https://github.com/Microsoft/react-native-windows/tree/master/ReactWindows/ChakraBridge
C# calls into C++/CX and then back out, totally transparently, living up to the cross-language workflow the CLR allows. There's also a pull request in React Native Windows that shows how to add a few compile-time directives that allows for sharing C++/CX and C++/CLI code:
https://github.com/Microsoft/react-native-windows/pull/769/
I have a class library written in C#, and I want to call it from a legacy native C++ application. The host application is truly native, compiled on Windows and Linux, and it’s a console application. So how can I make it call the C# class library, assuming using Microsoft .NET on Windows, and Mono on Linux?
I have looked at SWIG and wrapping with COM interfaces on Windows, but is there a standard recognized solution that works cross platform? I.e., that is generic, works with both Microsoft .NET and Mono. A write-once-use-everywhere implementation.
Solutions should expose the full class interfaces from the C# domain to the C++ domain.
Similar questions focus only on the Windows solutions, for example -
Call C# methods from C++ without using COM
If you want to do this cross platform, I would recommend going with a 100% Mono approach.
Mono has a clean Embedding API which works on Linux and Windows.
With .NET 5.0 (the successor of .NET Core) this is now possible to call C# from C++ in a cross-platform way without using Mono. Please see the solution explained in this GitHub issue using DNNE to generate a shared library and GCHandles to access C# objects.
With this you get a shared library that can be used from C or C++. Note that this will give a C-like API (no objects, like when using extern C in C++), in the future there may be tools like SWIG for C++ to overcome this limitation.