Hi Teo,

What you basically do is create two .cpp files. One defines classes using the __gc keyword so that it compiled into managed code (MSIL) and is accessible from C# or VB.NET. The other defines classes or methods without any .NET related keywords or constructs.

You then compile one using cl /c purecppcode.cpp, and the other using cl /c /clr managedcode.cpp. When you link them together with link.exe, you basically end up with an assembly that contains both MSIL code and pure assembly code.

It is a bit of simple example, but it should make the concept clear. If you create a Managed C++ Class Library from VS.NET, you get most of plumbing. The only thing you need to do is to add a new .cpp file and change its individual settings, or compile the unmanaged (old) code into a .LIB file. You can use ILDASM.EXE from the SDK to see the native and MSIL code end-up int he assembly.

Dennis Doomen
Sioux TSO B.V. Netherlands

 Hi.

 I want to build a mixed dll in VC++.NET 2002 to get advantage from code performance (using ASM and point arithmetic) and use the framework infrastructure to use libraries into VB.NET and C# without pInvoke.

 How can I do?

 Please, somebody can give me code sample or link where can I find something?

 Thanks very much,
 Teo