The managed version of the CoApp engine still needs to export C functions from the CoApp-Engine.dll Assembly.
No .NET language supports exporting C style functions from the assembly, yet .NET does, if you use ILASM and hand code it to do that. A couple years ago I built a tool to automatically do that using an Attribute (which I ever-so-cleverly called DllExport), and a command line tool to write the fixups. The tool generates a .NET assembly that has the exports, and forwards the C call on to the managed static function. By default, the tool takes a given .NET assembly (foo.dll) with functions marked with DllExport , it generates a companion assembly ($foo.dll). You can even debug straight from native to managed and back to native without doing anything special. For a release build, the tool can merge the fixups right into the target DLL--so that foo.dll itself has the C functions exported. It even supports callback functions (implemented as delegates in c#) The tool is part of my gsToolkit I wrote: http://gstoolkit.codeplex.com/wikipage?title=DllExport&referringTitle=Home public class CoAppEngine{ public delegate int ResolveCallback(string packageName, string localPath, string url); [DllExport("coapp_resolve")] public static int MyFunction(string packagePath, ResolveCallback callback) { callback("foo", "bar", "http://foo";); return 0; } } and you can see the results: C:\root\projects\CoApp\output\any\debug\bin>dumpbin /exports $coapp-engine.dll Dump of file $coapp-engine.dll File Type: DLL Section contains the following exports for $coapp-engine.dll 00000000 characteristics 4C780756 time date stamp Fri Aug 27 11:43:34 2010 0.00 version 0 ordinal base 1 number of functions 1 number of names ordinal hint RVA name 0 0 0000227E coapp_resolve [Description: fearthecowboy]<http://fearthecowboy.com/> Garrett Serack | Microsoft's Open Source Software Developer | Microsoft Corporation Office:(425)706-7939 email/messenger: garre...@microsoft.com<mailto:garre...@microsoft.com> blog: http://fearthecowboy.com<http://fearthecowboy.com/> twitter: @fearthecowboy<http://twitter.com/fearthecowboy> I don't make the software you use; I make the software you use better on Windows.
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