75 lines
2 KiB
C++
75 lines
2 KiB
C++
/*++
|
||
|
||
Module Name:
|
||
|
||
WrpMBWrp.cpp
|
||
|
||
Abstract:
|
||
|
||
A wrapper for my metabase wrapper wrapper. Why? All it does is provide
|
||
AFX support for CString classes. Everything else is passed on to the parent
|
||
|
||
Author:
|
||
|
||
Boyd Multerer bmulterer@accessone.com
|
||
|
||
--*/
|
||
|
||
//C:\nt\public\sdk\lib\i386
|
||
|
||
#include "stdafx.h"
|
||
#include <iiscnfgp.h>
|
||
#include "wrapmb.h"
|
||
|
||
#include "WrpMBWrp.h"
|
||
|
||
|
||
//-----------------------------------------------------------------------------
|
||
BOOL CAFX_MetaWrapper::GetString( LPCTSTR pszPath, DWORD dwPropID, DWORD dwUserType,
|
||
CString &sz, DWORD dwFlags )
|
||
{
|
||
PCHAR pData = NULL;
|
||
DWORD cbData = 0;
|
||
DWORD err = 0;
|
||
BOOL f;
|
||
|
||
// first, get the size of the data that we are looking for - it will fail because of the NULL,
|
||
// but, the size we need should be in cbData;
|
||
f = GetData( pszPath, dwPropID, dwUserType, STRING_METADATA, NULL, &cbData );
|
||
|
||
// check the error - it should be some sort of memory error
|
||
err = GetLastError();
|
||
|
||
// it is ok that the GetData failed, but the reason had better be ERROR_INSUFFICIENT_BUFFER
|
||
// otherwise, it is something we can't handle
|
||
if ( err != ERROR_INSUFFICIENT_BUFFER )
|
||
return FALSE;
|
||
|
||
// allocate the buffer
|
||
pData = (PCHAR)GlobalAlloc( GPTR, cbData + 1 );
|
||
if ( !pData ) return FALSE;
|
||
|
||
// zero out the buffer
|
||
ZeroMemory( pData, cbData + 1 );
|
||
|
||
// first, get the size of the data that we are looking for
|
||
f = GetData( pszPath, dwPropID, dwUserType, STRING_METADATA, pData, &cbData );
|
||
|
||
// if that getting failed, we need to cleanup
|
||
if ( !f )
|
||
{
|
||
GlobalFree( pData );
|
||
return FALSE;
|
||
}
|
||
|
||
// set the answer
|
||
sz = pData;
|
||
|
||
// clean up
|
||
GlobalFree( pData );
|
||
|
||
// return the allocated buffer
|
||
return TRUE;
|
||
}
|
||
|