[DUG] Com problem

[Robert Martin]

Hi David

Thanks for your reply.  I'm tied up fighting fires at the moment so will 
look into this more when I free up a bit.  However my Client app shares 
the _TLB.pas file and so that is identical between the two apps, was 
there any other file you think I want to re import?

I don't think its the data types, they are just WideString and Integer 
(BSTR and long in the typelibrary editor), the same as most other 
methods.  I think I will try and add another method that takes no params 
to rule out that.

Cheers
Rob



On 7/10/2016 9:20 AM, David Moorhouse wrote:
> Hi Rob
>
> It's a while since I've done any COM related stuff (typically SOAP and REST these days) but a couple of things spring to mind:
>
> Have you checked the signatures of the methods to make sure you're only using valid data types - especially when passing/returning strings.
>
> Also IIRC you need to regenerate the tlb and reimport the stubs in the client.
>
> Cheers
>
> David Moorhouse (BCom) | Principal Software Engineer - HealthOne
> Pegasus Health (Charitable) Ltd
> P: 03 353 0871 |   W:  www.pegasus.org.nz
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> 160 Bealey Ave, Christchurch 8014
>
>
>
>
> -----Original Message-----
> From: delphi-bounces at listserver.123.net.nz [mailto:delphi-bounces at listserver.123.net.nz] On Behalf Of Robert Martin
> Sent: Friday, 7 October 2016 8:42 a.m.
> To: NZ Borland Developers Group - Delphi List
> Subject: [DUG] Com problem
>
> Hi All
>
> Recently I went to add a new COM method to our app.  I hadn't done this since our previous version of Delphi by the looks of it because the type library menu item was disabled.  I discovered I needed to add the .rdil file to the project.  Having done that all seemed ok.  I added the method in the typeLibrary screen then implemented the code.
>
>
> In my COM consumer app I then try to call the new com method. All the old methods work just fine but the new method just AVs. The com method is not called.  It is almost like, even though I have defined the v call it hasn't actually been 'build' into the app.  I have checked the The rdil and tlb files and the new method looks the same as the existing methods.
>
> Does anyone have any suggestions of where I should look?
>
>
> Thanks
> Rob
>
>
>
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