OpenNetCF

MS default ".NET Compact Framework" implementation is a little bit limited.
In order to achieve the level what you can do with native C++, you have to use P/Invoke.
Fortunately, there is a good community called "Open .NET Compact Framework".
They released an open .net compact framework implementation extending the limited MS .NET CF even with sources.

Please take a look at the below link.
http://www.opennetcf.com/