How to convert a "void*" to managed class

[transoft]

Hi, I need to convert a "void*" pointer to a managed class. How can I do it? Soppose: ---------------- void * pClass ref class A {}; A^ pA = pClass; <---- compile error --------------------- Best,

[Mark Salsbery]

Maybe something like...

System::Runtime::InteropServices::GCHandle gch = System::Runtime::InteropServices::GCHandle::FromIntPtr((System::IntPtr)pClass);
A ^pA = (A ^)gch.Target;

Of course, this assumes pClass was obtained from an IntPtr obtained from an actual managed reference to an "A" object...

Mark Salsbery :java:

[elgaabeb]

Hi, I suggest you to use a dynamic cast : dynamic_cast msdn[^] Best regards! EL GAABEB.

[transoft]

Thank you for your reply. The classes can not be cast between "Managed" and "un-managed". Best,

[jschell]

transoft wrote:

I need to convert a "void*" pointer to a managed class. How can I do it?

To start with, based on your other post.... You must NOT attempt to cast an unmanaged class to a managed one. Doesn't matter why you think that is a good idea because it isn't.

[transoft]

Why MS design "System::Runtime::InteropServices"?

[jschell]

That provides a way to proxy between the two.