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Using C++ Class DLL in C# Application
I try to failed to add reference to add c++ dll in c#
if you have any other method to add or use c++ dll in c#. how can we use?
Where do i mistake to add dll in my c# project?
Thanks in advance
For using native C++ libraries in C#, you mostly will have to create a C++/CLI wrapper for that. P/Invoke is ok as long as the API of your DLL contains just simple C-like functions, but when the API contains real C++ classes, C++/CLI ist much better for that task.
You don't add a reference to a C++ library, that's for .NET assemblies only. What you need is platform interop using P/Invoke. MSDN has a bunch of information here:-
http://msdn.microsoft.com/en-us/library/aa288468(VS.71).aspx
It basically means you have to write method stubs that call your exported functions in the external library.
There is also the C++/CLI way which can be better depending on your C++ project setup, but personally I prefer the traditional Windows API function export way.
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How can I create win32api(dll) that will be callable on another language? Example:
When I'm using ruby, I should use my dll which written on C# or C++. So how can I create a dynamic library like that?
There are important differences between C++ and C# Dlls.
The C++ ones allow you to expose global functions (using __declspec(dllexport)) that you can call from ruby.
C# Dlls contain a manifest that can be used to find all the types and use the entire object model from said Dll.
I have never tried the later (i.e. all types and class hierarchy) using ruby, but, if possible, it would be a preferred approach to being able to call only the exported functions.
IronRuby apparently has no issues importing .NET types.
To create a C++ library select Visual C++ Win32 project, and then press Next on ensuing dialog to check DLL checkbox. Otherwise select Visual C# Class Library project.
You have two methods.
If your DLL is implemented using native language, such as C/C++. You can export C Function from your DLL and call it on other language. Most languages are able to call C Function either directly or using language extension, such as Win32API in Ruby.
Use COM (Component Object Model). COM is designed to work across languages. This is preferred method because it has many advantages. You can implement COM Class using C#, C++, Delphi and other languages and use it in other language like normal object in that language.
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Embedding DLLs in a compiled executable
Is it possible to embed a DLL into a console application If it is possible, how would one go about doing it?
Normally, I'm cool with just leaving the DLLs outside but there have been a couple of people at work who have asked me this and I honestly don't know.
If the libraries are also .NET, you can use ILMerge.
http://www.codeproject.com/Articles/9364/Merging-NET-assemblies-using-ILMerge
Edit (after learning it is native code)
Check out duplicate question here:
How can a C++ windows dll be merged into a C# application exe?
or
Embedding unmanaged dll into a managed C# dll
You can use SmartAssembly by Redgate as this can accomplish what you want. We use this tool to do exactly that.
You can use ILMerge for .NET assemblies. It won't work for native code.
ILMerge is a utility for merging multiple .NET assemblies into a
single .NET assembly. It works on executables and DLLs alike and comes
with several options for controlling the processing and format of the
output. See the accompanying documentation for details.
Download here: http://www.microsoft.com/en-us/download/details.aspx?id=17630
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What are my options for C++ DLL to call a C# DLL?
Okay so there is a load of material talking about how to wrap unmanaged code written in C++ or other languages and compiled to a DLL, and making a C# wrapping to make this unmanaged code something that can be called from C# directly.
I can't seem to find any material on calling managed code, from unmanaged code. That is, given a C# library, I'd like to wrap it such that I can call it's functions from C++. It that possible?
This might be worth looking at.
You might want to expose your component to COM interop: http://msdn.microsoft.com/en-us/library/c3fd4a20.aspx
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Call C# dll function from Visual C++
I have a set of C# classes. Can I import these classes in a C++ project like libraries and use them in this new project?
Yes. You have to reference the dll.
You said C++/CLI, correct?
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Binary serialization/de-serialization in C++ and C#
I am working on a project where server is written in C++ (boost is extensively used) and the client application is written in C#. I am facing the problem while serializing/deserializing messages between client/server.
I have studied various alternative libraries for achieving this sort of cross-platform serialization, and Protocol Buffers seems to be the best... but it does not support serialization of the standard library's map container and boost::shared_ptr.
My question then, is:
Can someone explain how map and boost::shared_ptr could be serialized using Protocol Buffers. Or failing that,
Would Apache's Thrift work for this?
...Or am I stuck using interop DLLs on the (C#) client side?
What about wrapping the c++ message classes with c++/cli ref classes so that you use the same boost serialisation library on the client side.