Calling a .net form from vb6

[William Gower]

We are gradually converting a huge vb6 app to .net. How can I call a .net
winform from a button on a vb6 form?

 

[Cor Ligthert]

Hi William,

You cannot mix a vb6 application with a vb.net application.

The only thing that is partialy equal in those are the functions in the
visualbasic namespace, the operators and also partialy the style of coding
inside a function or a sub. The rest is complete new.

While vb6 uses intermidiate code with a runtimer, is vbNet using
intermidiate code processed by the framework.

I have very few vb6 expirience however I assume you can start an application
from VB6 however that is in my opinion more an VB6 classic question.

For that are the newsgroups.

microsoft.public.vb *

Cor

 

[Herfried K. Wagner [MVP]]

You cannot mix a vb6 application with a vb.net application.

That's true, but you can write a .NET component and register it for COM
interop and then use this DLL in your VB6 project. Nevertheless, I
would not use .NET GUIs in VB6.

 

[William Gower]

Public Class Organize

Dim FrmOrganize1 As FrmOrganize

public sub new
end sub

public sub Show
FrmOrganize1.Show
end sub
end class

I built a dll in .net. I used regasm to register it and it is registered as
Myproject.Organize

In VB6, I add a reference to the .tlb.

I then call

dim frm
set frm = Myproject.Organize
frm.show

I get the error cannot create a file when the file already exists. What am
I doing wrong?