compile erros with Microsoft SDK files

Question

I'm doing a build and one of the early messages is:

WINVER not defined.  Defaulting to 0x0600 (Windows Vista)

and then I get compile errors with this file:

c:\program files\microsoft sdks\windows\v6.0a\include\netioapi.h

The three errors are:

error C2146: syntax error : missing ';' before identifier...

error C4430: missing type specifier - int assumed.  Note: C++ does not support default-int

error C4430: missing type specifier - int assumed.  Note: C++ does not support default-int

Now from the last two I can tell it is something with the version of compiler I am using.  I am using VS2008.  In the path to these files I see "v6.0a" and so I wonder if this SDK is for Visual C++ 6.0?

Is this true?  I must install a new version of the SDK, compatible with VS2008?

Answer 1

>from the last two I can tell it is something with the
>version of compiler I am using.

Not exactly. No recent version of any C++ compiler will
default to type int when a type ison't specified.
Implicit int is not supported by ANSI/ISO Standard C++.

The first error shown will result in the second two.
That first error is probably caused by a missing or
incomplete header file in your program. You should
have

#include <windows.h>

as the first include in your code.

>In the path to these files I see "v6.0a" and so I
>wonder if this SDK is for Visual C++ 6.0?

No. The version of the Win SDK has no relationship
to the version of the C++ compiler. That is the
correct version for VC++ 2008 and is the version
of the SDK which will be installed with VC++ 2008,

- Wayne

Answer 2

>You should have
>#include <windows.h>
>as the first include in your code.

Clarification: If using precompiled headers (PCH),
this include should come *after* stdafx.h which
needs to be first for PCH.

- Wayne

Answer 3

>You should have
>#include <windows.h>
>as the first include in your code.

Clarification: If using precompiled headers (PCH),
this include should come *after* stdafx.h which
needs to be first for PCH.

- Wayne

Or, even inside stdafx.h

-- pa

Answer 4

Ok, I put #include <windows.h> in stdafx.h (windows.h had been included in various other files, some .h and some .c/.cpp but not all of them) and now I see this:

fatal error C1189: #error : WINDOWS.H already included.  MFC apps must not #include <windows.h>

Now I think this is a custom error message, if my knowledge of "#error" is correct.  I'm not sure what an MFC app has to do with this, but stdafx.h looks like this:

#if !defined(AFX_STDAFX_H__......)
#define AFX_STDAFX_H__......

#if _MSC_VER > 1000
#pragma once
#endif

#define VC_EXTRALEAN

#include <windows.h>

#include <afxwin.h>
#include <afxext.h>
#include <afxdtctl.h>

#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h>
#endif

#include "BaseTsd.h"

#endif

So apparently this project uses MFC.  How does that relate to my initial error?

Answer 5

check this link this may help you out

http://msdn.microsoft.com/en-us/library/aa383745%28v=vs.85%29.aspx

Answer 6

Im not sure what I should be looking for though.  I mean, I can define WINVER, but to what?

Answer 7

Also see:

Modifying WINVER and _WIN32_WINNT
http://msdn.microsoft.com/en-us/library/6sehtctf.aspx

- Wayne

Answer 8

Also see:

Modifying WINVER and _WIN32_WINNT
http://msdn.microsoft.com/en-us/library/6sehtctf.aspx

- Wayne

Ok I added

/D WINVER=0x0601

to the command line for compiling, but I still get the same 3 errors as mentioned in the original post.

Answer 9

Ok I added

/D WINVER=0x0601

There shouldn't be a space in there:

/DWINVER=0x0601

- Wayne

Answer 10

Ok, I put #include <windows.h> in stdafx.h (windows.h had been included in various other files, some .h and some .c/.cpp but not all of them) and now I see this:
 
fatal error C1189: #error : WINDOWS.H already included. MFC apps must not #include <windows.h>
Now I think this is a custom error message, if my knowledge of "#error" is correct. I'm not sure what an MFC app has to do with this, but stdafx.h looks like this:
 
#if !defined(AFX_STDAFX_H__......)
#define AFX_STDAFX_H__......
 
#if _MSC_VER > 1000
#pragma once
#endif
 
#define VC_EXTRALEAN
 
#include <windows.h>
 
#include <afxwin.h>

afxwin.h is MFC's replacement for windows.h (it includes windows.h itself), so remove the windows.h include above.
 

---

David Wilkinson | Visual C++ MVP

Answer 11

but I still get the same 3 errors as mentioned in the original post.

>and then I get compile errors with this file:
>c:\program files\microsoft sdks\windows\v6.0a\include\netioapi.h
>The three errors are:
>error C2146: syntax error : missing ';' before identifier...

Nobody can tell you the exact cause of those errors
without seeing the code preceding them. The usual
cause in cases such as this is an error in a header
file (or immediate code) before the header in
question is included. It's often caused by a
missing semicolon after the closing brace in a
structure or class definition. The parser keeps
reading lines of code after that closing brace
and treating them as part of the struct/class,
until it encounters something which simply won't
fit anymore. The actual cause is therefore somewhere
before the line indicated in the first error message.

You need to set the Project Property to "Show Includes".
Then examine the Output window from a build to see what
is preceding netioapi.h - and perhaps also use
"Generate Preprocessed File" to see the complete
code from the headers. Then work back from the
first error line to locate the source of the
problem.

- Wayne

Answer 12

I am using VS2008. In the path to these files I see "v6.0a" and so I wonder if this SDK is for Visual C++ 6.0?
Is this true? I must install a new version of the SDK, compatible with VS2008?

This question is already answered in this thread. The "v6.0a" has nothing to do with VC6, and it is the version that comes with VS2008.
 

---

David Wilkinson | Visual C++ MVP

Answer 13

 Nobody can tell you the exact cause of those errors
without seeing the code preceding them. The usual
cause in cases such as this is an error in a header
file (or immediate code) before the header in
question is included.

You need to set the Project Property to "Show Includes".
Then examine the Output window from a build to see what
is preceding netioapi.h

Ok, I turned on "Show Includes". There are a lot of MFC and SDK files being included before the SDK file that has the problem. The ONLY file from my project that is included before this is stdafx.h. I already posted my stdafx.h above. No one seemed to see a problem with it.  Maybe the MFC headers I am including are old?  I know nothing about MFC so if someone could comment on those, that'd be great.

Answer 14

If it helps any, the issue could be because I upgraded to VS2008.  This project compiled previously in VC6.0.  I know some things that used to be warnings in the old compiler are now errors in VS2008.