[Mono-dev] Mixed Mode Assemblies

Pablo Ruiz pablo.ruiz at gmail.com
Sat Jul 9 08:10:42 EDT 2011

Well, I managed to do exctly this (extracting embedded .dll/.so & it's
dependencies on Win32/Win64/Linux32/Linux64) on WkHtmlToXSharp (

And I got fine results. It has some limitations (like being able to write on
working dir, etc.) but it makes deployment alot easier. I even check if the
file exists before extracting to allow onfield upgrade of native

On Sat, Jul 9, 2011 at 2:05 PM, Robert Jordan <robertj at gmx.net> wrote:

> On 09.07.2011 12:20, Quandary wrote:
> > It's true that p/Invoke + InterOp services do not form a complete
> solution.
> > However, creating a interface in managed code across platforms isn't
> > very difficult.
> >
> > All you need to do is to pack a x86&x64&ARM&PPC Linux&Windows&Mac
> > version of the native dll into the .NET dll's ressources, then stream
> > the respective assembly out on the calling of the constructor, and
> > create an abstract class, where you create an instance for the
> > respective platform (for example because of structs, where on x64, there
> > are different sizes of long + int on Windows&  Linux/UNIX), which you
> > can then invoke as an interface.
> Extracting and loading native libraries at run-time won't work
> correctly on sane systems, unless you somehow manage to (1)
> extract them into a path already configured as a library path,
> (2) using absolute paths in DllImport attributes, (3) generating
> DllImport code at run-time or (4) loading the libs and their
> exports w/out DllImport's help (dlopen, LoadLibrary etc.).
> That's why nobody is using such an approach in real world,
> at least not under Unix. Using <dllmap> or a starter shell
> script that sets the LD path is by far less complex (a
> matter of minutes to develop).
> Robert
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