convert unmanaged pointer to managed pointer?

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Alan Baljeu - 13 Apr 2006 15:36 GMT

I have some C# code I want to use from C++. One of the C# method's
parameters expects a COM interface (which was defined in a separate COM
component, which is used by both of my assemblies), but I can't seem to pass
a COM interface over to C# because I get error C2664:
cannot convert parameter 1 from 'DesignServicesLib::IDsCadCallbacks *'
to 'DesignServicesLib::DsCadCallbacks __gc *'

But a straight pointer is what the COM component gives me, so I'm stuck.
(Of course if the C# assembly called that COM method to obtain a C#
reference, it would just work, but that doesn't help me.)

Ideas?

Reply to this Message

Alan Baljeu - 13 Apr 2006 18:41 GMT

>I have some C# code I want to use from C++. One of the C# method's
>parameters expects a COM interface (which was defined in a separate COM
[quoted text clipped - 8 lines]
>
> Ideas?

If I replace using "foo.dll" with #import "foo.dll", this problem goes
away. What do you make of that?

Reply to this Message

Free Magazines

Get these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...