Re: [platform-swt-dev] Problem building Win32 swt lib

[Veronika_Irvine@xxxxxxx]

We have seen this problem.

We compile against a fairly old version of the MSSDK and this is not a problem.  However, in newer versions of the MSSDK, this structure has been renamed and we get the error you are seeing.

We are going to fix our code so that it compiles with more recent versions of the MSSDK and we will post here to let you know when this is done.

I would tell you what version of the MSSDK we are currently compiling against except I don't know how to find this info out fom the header files.  If you would like to know the version and you know how to get the information, please instruct me.

Allen Wirfs-Brock <Allen_Wirfs-Brock@xxxxxxxxxxxxxxxxxx> Sent by: platform-swt-dev-admin@xxxxxxxxxxx 29/01/2002 03:12 PM Please respond to platform-swt-dev

To:        platform-swt-dev@xxxxxxxxxxx         cc:                 Subject:        [platform-swt-dev] Problem building Win32 swt lib

I'm encountering a problem trying to set up a build environment where I can 
build the win32 swt native library using MS VisualStudio  6 (Visual C/C++ 6.0).

Does the following problem sound familiar to anyone?

I'm starting with the sources and makefile from the Eclipse 1.0 release 
build and created an analogous VisualStudio project.

Everything builds fine except structs.c.  For that file I get the following 
errors:

>C:\ECLIPSE\1.0\eclipse\plugins\org.eclipse.swt\src\library\structs.c(3554) 
>: error C2039: 'wEffects' : is not a member of 'tagEXCEPINFO'
>         C:\PROGRAM FILES\MICROSOFT SDK\INCLUDE\oaidl.h(713) : see 
> declaration of 'tagEXCEPINFO'
>C:\ECLIPSE\1.0\eclipse\plugins\org.eclipse.swt\src\library\structs.c(3567) 
>: error C2039: 'wEffects' : is not a member of 'tagEXCEPINFO'
>         C:\PROGRAM FILES\MICROSOFT SDK\INCLUDE\oaidl.h(713) : see 
> declaration of 'tagEXCEPINFO'

The first error is in the function getExcepinfoFields on the line:
     lpExcepinfo->wReserved = 
(*env)->GetShortField(env,lpObject,lpExcepinfoFc->wReserved);

The second error is in the function setExcepinfoFields on the line:
     (*env)->SetShortField(env,lpObject,lpExcepinfoFc->wReserved, 
lpExcepinfo->wReserved);

Note that neither line contains an explicit reference to wEffects, however, 
eliminating the references to lpExcepinfo->wReserved eliminates the errors.

tagEXCEPINFO is the struct tag for EXCEPINFO and lpExcepinfo is declared as 
EXCEPINFO *. The declaration of the EXCEPINFO struct in oaidl.h includes 
the member wReserved but not wEffects.

My best guess is that this is some sort of Microsoft Platform SDK version 
skew issue with oaidl.h.  I'm using the July 2001 SDK update from a MSDN 
subscription.

Has anybody encountered a similar problem?  Any suggestions?

Allen Wirfs-Brock
Instantiations, Inc.


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