This also means that no dynamic loading needs to take place during run time, and the function is called directly from C#.

C# code that executes under managed run time) produces a linker error rather than a run-time error. You can define this kind of function in NativeFunctions.cpp as follows: extern 'C' _declspec(dllexport) int _stdcall CountLettersInString(wchar_t* str)īecause the linker resolves the function call, any error made in the function declaration on the managed side (i.e. Due to this, you can use the “_Internal” keyword in place of the DLL name, which makes it the C++ linker’s responsibility to resolve the functions, rather than loading them at run time, as the following example shows: ĬountLettersInString(string str) Select the appropriate Mac OS option in the Platform settings section of the Inspector window: Plugin importer settings for C++ filesīecause the functions are linked together with generated C++ code, there is no separate DLL to _P/Invoke into. If you configure the C++ files to be compatible with macOS Player, Unity compiles them together with C++ code that gets generated from managed assemblies. These C++ files will act as plugins within the Plugin Inspector A Unity window that displays information about the currently selected GameObject, asset or project settings, allowing you to inspect and edit the values. Universal Windows Platform, however, supports only two. Unity supports three different scripting backends depending on target platform: Mono. More info See in Glossary scripting backend A framework that powers scripting in Unity.

You can add C++ (.cpp) code files directly into a Unity Project when using the IL2CPP A Unity-developed scripting back-end which you can use as an alternative to Mono when building projects for some platforms.

Il2cpp source code