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Asked: 2026-05-11T14:51:07+00:00

I want to invoke the following C++ function (exported by a DLL) from C#:

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I want to invoke the following C++ function (exported by a DLL) from C#:

void createVm(    const jace::VmLoader& loader,    const jace::OptionList& options,    bool ignoreUnrecognized = true );

I’ve found documentation for marshaling primitives from C++ to C# but I’m not sure how to handle reference-types or non-pritmive types such as VmLoader or OptionList (both of which are classes). I’m trying to wrap a C++ API with a C# layer, delegating to the underlying C++ code for the actual method implementation.

Any ideas?

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1 Answer

  1. AFAIK, PInvoking into a function with C++ constructs is not a supported operation. You could probably get it to work but I think you’ll find problems.

    What is supported is writing a simple C wrapper function which calls into your C++ function. PInvoke into the wrapper function instead and that will do the trick.

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