Using a .NET assembly in a VB6 application

  • Thread starter Thread starter Henke
  • Start date Start date
H

Henke

Hi!

Is it possible to use a .NET assembly in a VB6 application? We have an old
VB application to which we'd like to add a new module, no communication is
needed to the old app. Is it possible to develop it using VB.NET and then
use/call it in the VB6 application.

Thnaks in advance!
/Henke
 
That looks nice, calling methods and returng values from a .NET class looks
like it would work.
I'm not good at COM+ so sorry for asking:
Can my COM+ objects have a user interface?

/Henke
 
I gotta question about this, and it may sound incredibly dumb but I don't
understand how the interop works. Or at least confused.

Given that its managed code that simply exposes a com interface, would it be
correct in saying that if you built an Active X control it would require the
CLR?

Or can you build an ActiveX Control with .NET?
 
CJ Taylor said:
I gotta question about this, and it may sound incredibly dumb but I
don't understand how the interop works. Or at least confused.

Given that its managed code that simply exposes a com interface,
would it be correct in saying that if you built an Active X control
it would require the CLR?
Click to expand...

yes, it would, but...
Or can you build an ActiveX Control with .NET?
Click to expand...

....no, you can't. At least there is no "built-in" way. I'm not sure but I
think a link has already been posted that could take you to a "work-around".
I didn't follow it, so everybody else can say more about it.
 
Henke said:
That looks nice, calling methods and returng values from a .NET class
looks like it would work.
I'm not good at COM+ so sorry for asking:
Can my COM+ objects have a user interface?
Click to expand...

See my reply to CJ. Or short: I'm almost sure that they can't. You might
pass a window handle to the COMponent and use it to paint on it, but that's
all I can say.
 
Fair enough, I appreicate the reply. I had somene ask me abuot this and I
didn't know how to give the answer since I have yet to develop and ActiveX
application since leaving VB6.

My question regarding the CLR was not to sound dumb, but I was reading some
articles on MSDN that was talking about bringing the managed classes into a
single type library for the activex control, which made me think that maybe
it creates its own interop between all of them, I don't know, never played
with it.

And regarding the ActiveX control in .NET, I had seen a few posts about it,
read some articles but was unsure on how it worked, which is why I posted.
I greatly appreciate your insight on this though.

Thanks,
CJ
 
How should the component be used in VB.
I add a reference, and then tries to add it through Components->Browse. But
when I add the dll-file it says not an ActiveX component. What am I missing
here?

Thanks!
/Henke
 
Henke said:
How should the component be used in VB.
I add a reference, and then tries to add it through
Components->Browse. But when I add the dll-file it says not an
ActiveX component. What am I missing here?
Click to expand...

After regasm.exe, the component must be available in Project -> References.
 
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