How to use Managed C + + wrapper unmanaged C + + class library , for C # to becalled

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How to use Managed C + + wrapper unmanaged C + + class library , for C # to becalled.thanks.

Posted 13-Oct-11 6:48am

pucx

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Philippe Mori · Answer 1 · 2011-10-13T13:03:00

Solution 1

Simply create a managed C++/CLI DLL then create wrapper classes that call the unmanaged code.

Posted 13-Oct-11 13:03pm

Philippe Mori

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pucx 14-Oct-11 0:03am

but how to call the unmanaged code?I don't know.thanks.

Philippe Mori 14-Oct-11 7:58am

Nothing special to call unmanaged code... Well, if you need to have a unmanaged object inside a ref class, you must have a pointer (or a reference) and not an embedded object and you have to read rules about destructors and finalizer...

There are pragmas to control weither a portion of code is managed or not but generally it does not matters much for the program to works but in some cases, it might help performance.

Also, if you need to keep a handle to a ref class from an unmanaged class, there is the gcroot utility class for that purpose.