ZEOS : Can't compile V7.0.0 with Lazarus V1.0, FPC 2.6.0, SVN Rev
38415
lazarus / 16-Databases

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phil_v · 2012-10-03 06:29

Hi,
I'm having trouble compiling & Installing ZEOS LIB
My Versions are :-
ZeosLib V 7.0.0
Lazarus V1.0
PFC V 2.6.0

I get following compile error
C:\lazarus\Source\ZeosLib\Zeos Lib\src\core\ZClasses.pas(90,22) Error:
No matching implementation for interface method
"IUnknown.QueryInterface(constref TGuid,out <Formal type>):LongInt;
StdCall;" found

At this code:
  TContainedObject = class(TAggregatedObject, IInterface)
  protected
    function QueryInterface(const IID: TGUID; out Obj): HResult;
virtual; stdcall;
  end;

Thanks in advance for any help please.
Phil

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Blestan · 2012-10-03 06:32

This is a very old issue ... please search in the forum for  the
solution...

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Zoran · 2012-10-03 06:51

There is not released version 7 of Zeos. There is alpha testing from
three years ago (which is what you probably have), and there is
constantly developed trunk version which you can checkout from svn
(http://svn.code.sf.net/p/zeoslib/code-0/trunk). Both of these have
version 7. Checkout the svn trunk and try. It has been improved a lot
lately.

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phil_v · 2012-10-04 13:21

Thanks Bleston, after a search of the forum, I followed the
instructions from here 
 (http://wiki.freepascal.org/Zeos_tutorial#Windows)

Thanks Zoran, I installed ToetoiseSVN and downloaded Zeos from
(http://svn.code.sf.net/p/zeoslib/code-0/trunk) as you suggested.

I then compiled Zeos all OK.