https://github.com/offchan42/unitycppclassdllexample

:bulb: Example exporting CPP class as DLL and importing in Unity C# as native plugin
https://github.com/offchan42/unitycppclassdllexample

cpp csharp dll exporting-cpp native-plugin unity

Last synced: 2 months ago
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:bulb: Example exporting CPP class as DLL and importing in Unity C# as native plugin

• Host: GitHub
• URL: https://github.com/offchan42/unitycppclassdllexample
• Owner: offchan42
• License: mit
• Created: 2018-09-20T09:55:52.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-10-10T09:37:03.000Z (over 4 years ago)
• Last Synced: 2025-03-20T21:15:08.053Z (2 months ago)
• Topics: cpp, csharp, dll, exporting-cpp, native-plugin, unity
• Language: C++
• Homepage:
• Size: 29.1 MB
• Stars: 13
• Watchers: 3
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# UnityCPPClassDLLExample

Example exporting CPP class as DLL and importing in Unity C# as native plugin

There will be times when you want to run your C++ code inside Unity. So you will need to export the code into DLL format and then import it in Unity. This project is showing you an example of exporting a **Student** class written in C++, and import it in Unity C#.

## How to run NOW

Open Unity project `TestImportCPPClass` and press Play button or Ctrl+P. You will see the output is being printed in the console.

![unity-output-console](img/42227750_2707342812616539_2434765356070338560_n.jpg)

Then take a look at [TestImportCPPClass/Assets/TestImportCPPClass.cs](TestImportCPPClass/Assets/TestImportCPPClass.cs) to see how it is implemented.

You will see quickly that it's just a bunch of function calls to the DLL files.

## How to reproduce result from scratch

1. Open Visual Studio 2017 and create a new DLL project.

2. Copy content of file `TestExportCPPClass.cpp` from `TestExportCPPClass/TestExportCPPClass/` directory.

    ![TestExportCPPClass.cpp](img/42151255_2707336245950529_6861876400492642304_n.jpg)

3. Go to Build -> Build solution, make sure the build is set to x64 to get a

    `dll` file ready for Unity project with x64 architecture.

    (Optional: You could also build x86 version too)

    ![dll-directory](img/42155105_2707337372617083_389608986069958656_n.jpg)

4. Create a new Unity project.

5. Copy `dll` file from `TestExportCPPClass/x64/Debug` into Unity's `Assets/Plugins/x86_64` directory.

6. Open Unity project and copy the C# script from `TestImportCPPClass/Assets/` directory.

    ![TestImportCPPClass.cs](img/42130597_2707341709283316_2299262612510081024_n.jpg)

7. Create an empty GameObject in the scene and attach the script to it.

    ![unity-hierarchy](img/41949974_2707346379282849_3289350954758963200_n.jpg)

8. Press Play button to see the output in the console.

    ![unity-output-console](img/42227750_2707342812616539_2434765356070338560_n.jpg)

## Related resources