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Problems including winioctl.h....

Posted on 2003-10-22
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Last Modified: 2013-11-20
Hi,

my problem is this:
I use the function DeviceIoControl() with some parameters, and I have included winioctl.h, but the compiler can't find those parameters declared in that file. Here's the code:

#include "stdafx.h"
#include "windows.h"
#include "iostream.h"
#include "winioctl.h"

int main(int argc, char* argv[])
{
      HANDLE hFind;
      DWORD outputBufferSize;
      FILE_OBJECTID_BUFFER outputBuffer;

      ---
                some code here...(getting the handle etc.)
                ---

      DeviceIoControl(hFind,
                   FSCTL_GET_OBJECT_ID,
                   NULL,
                   0,
                   outputBuffer,
                   sizeof(outputBuffer),
                   outputBufferSize,
                   NULL);


      return 0;
}

and I get these error-messages:

error C2065: 'FILE_OBJECTID_BUFFER' : undeclared identifier
error C2146: syntax error : missing ';' before identifier 'outputBuffer'
error C2065: 'outputBuffer' : undeclared identifier
error C2065: 'FSCTL_GET_OBJECT_ID' : undeclared identifier

What can be the problem?? I have included winioctl.h, and I have the SDK include library as the top path in options/directories...(it finds windows.h without any problems)
Any help would be appreciated.

/Nick
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Question by:Nick_72
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2 Comments
 
LVL 48

Accepted Solution

by:
AlexFM earned 75 total points
ID: 9597982
FILE_OBJECTID_BUFFER

Windows NT/2000 or later: Requires Windows 2000 or later.
Windows 95/98/Me: Unsupported.
Header: Declared in Winioctl.h.


This means you need to add the following line:

#include "stdafx.h"
#define _WIN32_WINNT 0x0500          // add this
#include "windows.h"
#include "iostream.h"
#include "winioctl.h"


See MSDN topic "Using the SDK Headers".




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by:Nick_72
ID: 9598097
Oh....thanks alot.
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