Question How to combine the C++ code with C# GUI?
Skydiver
Staff member
Do you want to write ANSI C++? Or are you willing to use the Microsoft variant of C++ for managed code called C++/CLI? (CLI stands for Common Language Interface, not what most *nix folks assume to stand for Command Line Interface.)
Alternatively, you have your C++ code expose a COM object, and the C# code can interact with the COM object.
And yet another alternative is to compile your C++ code as DLL and expose entry points into the DLL which can be called by P/Invoke (Platform Invoke).
Alternatively, you have your C++ code expose a COM object, and the C# code can interact with the COM object.
And yet another alternative is to compile your C++ code as DLL and expose entry points into the DLL which can be called by P/Invoke (Platform Invoke).
Hello,
Thank you so much for your reply.
I want to write ANSI C++. Can you write a simple tutorial here or show me a good link? I watched some videos on the Youtube.com, but I couldn't find anything useful!
Hello,
Thank you so much for your reply.
Not really. When I click on the button, then the C++ program executes. For example, my C++ program shows "Hello World!" and when I click on the button, "Hello World!" to be displayed.
Skydiver
Staff member
Stop and think about the UI impedance mismatch of your planned C# form, and your hypothetical console C++ code. Do you intend the button to open up a console window and have the "Hello, World" show up in the console window? If some, then just compile the C++ "Hello World" console program as a .EXE as you normally would, and then have your C# form button handler use
Process.Start() to run your HelloWorld.exe.
cjard
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Hmm. So, you want to make a reference to the C++ exe and call its functions directly, like invoking unmanaged Windows functions (Platform Invoke (P/Invoke)) from managed (.net) code (which SD already covered)..
I noted you said this:
Why do you want this hybrid approach? You’re writing some C++ code so you can call it from C#, which you’re also writing? What is the purpose of splitting it up? Why not write all in one or all in the other language?
I noted you said this:
Why do you want this hybrid approach? You’re writing some C++ code so you can call it from C#, which you’re also writing? What is the purpose of splitting it up? Why not write all in one or all in the other language?
Skydiver
Staff member
In general, you can write ANSI C++ code, and compile it into an assembly taking advantage of Microsoft's IJW (It Just Works). My understanding is that Microsoft does this itself in various of is products where they don't want to completely rewrite larger swathes of its code base. You will still have deal with the places where the C# and the C++ code will talk to each other, but say least that narrows down the amount of specialized code you would need to write.
Hello,
Thank you again.
I just want to learn it for another program. My main program is a form with some items like "Name", "Family" and etc. that user enters the information and click on a button, then the C++ code gets items inputs and generate a code.
I know that I can do all of these stuffs with C# easily, but I want to integrate the C++ code with C# GUI.
cjard
Well-known member
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Take it from an old developer; make life easy, because it frees up more time to find something that also makes it interesting
Skydiver
Staff member
Google is your friend... Anyway try this:
Wrapping Native Libraries
This guide demonstrates how to wrap a C/C++ library in order to call into it from .NET.
developer.rhino3d.com
This is a C# forum. It's not for us to teach you how to write C++ code. If you have working C++ code, we can help you invoke it from C# code. To actually learn how to write C++, there are places dedicated to that on the web.
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