Philipp Brune wrote:

> Hello newsgroup,
>
> i have the following problem and i hope someone is able to either tell
> me how to solve it or to tell me that it is even not possible :
>
> Given an VB6 ActiveX DLL (Common.dll) that defines the following public
> type
>
> Public Type T_DEMO
> ID As Integer
> Value as String
> End Type
>
> Now i reference this dll in my c# library project (NCommon.dll). The IDE
> has generated an appropriate Interop.Common.dll.
>
> This NCommon.dll is now COM visible and again referenced by another VB6
> standard exe (NCommonClient.exe) project.
>
> In NCommon.dll i can specify a Method like
>
> public void Process(T_DEMO value)
> {...}
>
> and I can easily call it from the VB6 NCommonClient and pass an instance
> of the T_DEMO type after referencing the corresponding tlb.
>
> What i want to achive is to define the Method like
>
> public void Process(object value)
> {
>
> }
>
> into which i want to pass an instance of an UDT and then
> cast (appropriate term?) it to the corresponding managed
> type from Interop.Common.dll. Is this possible ? From
> my vb 6 app i receive the runtime error 5. How could i
> do this ?
>
> Thanks in advance,
>
> Philipp
>
>
>