Resource Page Description
An extension (template specialization) to marshal_as<> library of Visual C++ 2008, to convert Unicode string arrays between managed (CLR) and native (STL/C++) code.
This project shows how to specialize marshal_as<> template library of Visual Studio 2008, to allow marshaling of list of (Unicode) strings between managed and native worlds.
The main file is the header: marshal_stringarray.h
This file contains the marshal_as aforementioned template specialization, and it should be included in projects that requires this kind of marshaling.
There are several options to store list of strings in C++.
For this project, I chose to use std :: wstring as Unicode (UTF-16) string class, and std :: vector as container of strings.
Both classes ( std :: wstring and std :: vector) are from STL.
Using this marshaling is as simple as this:
// Marshal from STL string array to CLR string array
ClrStringArray^ clrNames = marshal_as< ClrStringArray^ >( names );
// Marshal from CLR string array to STL string array
StlStringArray stlNames = marshal_as< StlStringArray >( clrNames );
Extending and "crafting" the code to make it working with similar classes (like CStringW) should be easy enough.
Giovanni Dicanio
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