qse/ase/com/Buffer.cpp

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/*
* $Id: Buffer.cpp,v 1.3 2007/04/30 06:04:43 bacon Exp $
*
* {License}
*/
#include "stdafx.h"
#include "Buffer.h"
CBuffer::CBuffer ()
{
str = NULL;
}
CBuffer::~CBuffer ()
{
if (str != NULL) SysFreeString (str);
}
STDMETHODIMP CBuffer::get_Value (BSTR *pVal)
{
if (str == NULL) *pVal = NULL;
else
{
BSTR tmp = SysAllocStringLen(str, SysStringLen(str));
if (tmp == NULL) return E_OUTOFMEMORY;
*pVal = tmp;
}
return S_OK;
}
STDMETHODIMP CBuffer::put_Value (BSTR newVal)
{
if (str != NULL) SysFreeString (str);
if (newVal == NULL) str = newVal;
else
{
str = SysAllocStringLen (newVal, SysStringLen(newVal));
if (str == NULL) return E_OUTOFMEMORY;
}
return S_OK;
}
BOOL CBuffer::PutValue (const TCHAR* val, SIZE_T len)
{
if (str != NULL) SysFreeString (str);
str = SysAllocStringLen (val, len);
return (str == NULL)? FALSE: TRUE;
}