Midas connection

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5 total messages Started by Roberto Maiorca Fri, 22 Oct 1999 00:00

#1501

Author: Roberto Maiorca
Date: Fri, 22 Oct 1999 00:00

9 lines
706 bytes

Please help me,
i have C++ Builder 4 Enterprise#update1. 
i'm tryng to make a simple Client/server multi-tiered, but when i
connect ClientDataSet to the object TTable on Server i have this error
'src->QueryInterface(GetID(),(LPVOID *)(&intf))': interface not
supported, ......'

Thanks,
	Roberto.

Re: Midas connection

#1503

Author: Trudbert Schwoerer
Date: Fri, 22 Oct 1999 00:00

18 lines
1095 bytes

Roberto Maiorca wrote in message <38103d66.10636820@forums.inprise.com>...
>Please help me,
>i have C++ Builder 4 Enterprise#update1.
>i'm tryng to make a simple Client/server multi-tiered, but when i
>connect ClientDataSet to the object TTable on Server i have this error
>'src->QueryInterface(GetID(),(LPVOID *)(&intf))': interface not
>supported, ......'
>
>Thanks,
> Roberto.
>

I had the same problem after installing the update pack 1. It disappeared
after i removed the update pack. If you don't need the update pack for any
other reason, remove it!

Trudbert

Re: Midas connection

#1504

Author: Steve Pietrykoski
Date: Fri, 22 Oct 1999 00:00

24 lines
1213 bytes

Hi Roberto,

The patch introduces a bug in the code generated for the provider.  If
you have a provider X, a function get_X is generated.  In every one of
these functions you need to make the following modification:

  *Value = (IProvider *)IProv;

Hope that helps,
Steve Pietrykoski

Roberto Maiorca wrote:
> 
> Please help me,
> i have C++ Builder 4 Enterprise#update1.
> i'm tryng to make a simple Client/server multi-tiered, but when i
> connect ClientDataSet to the object TTable on Server i have this error
> 'src->QueryInterface(GetID(),(LPVOID *)(&intf))': interface not
> supported, ......'
> 
> Thanks,
>         Roberto.

Re: Midas connection

#1509

Author: vavan
Date: Tue, 26 Oct 1999 00:00

17 lines
1152 bytes

U can solve this if u insert #define IProviderPtr IProvider* in
YourServerName_TLB.h
The only thing to remember: you HAVE to do this every time the type library
has been refreshed!!!

Roberto Maiorca <sig8@freemail.it> wrote in message
news:38103d66.10636820@forums.inprise.com...
> Please help me,
> i have C++ Builder 4 Enterprise#update1.
> i'm tryng to make a simple Client/server multi-tiered, but when i
> connect ClientDataSet to the object TTable on Server i have this error
> 'src->QueryInterface(GetID(),(LPVOID *)(&intf))': interface not
> supported, ......'
>
> Thanks,
> Roberto.
>

Re: Midas connection

#1511

Author: Steve Pietrykoski
Date: Tue, 26 Oct 1999 00:00

14 lines
1016 bytes

That solves an additional problem (which may also apply) that shows up
when opening projects created before the patch.  The problem Roberto
described is present in every project.

HTH,
Steve Pietrykoski

vavan wrote:
> 
> U can solve this if u insert #define IProviderPtr IProvider* in
> YourServerName_TLB.h
> The only thing to remember: you HAVE to do this every time the type library
> has been refreshed!!!
>

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