76 lines
1013 B
C++
76 lines
1013 B
C++
//
|
|
// auto_sa.h SAFEARRAY
|
|
//
|
|
|
|
#pragma once
|
|
|
|
|
|
class auto_sa
|
|
{
|
|
public:
|
|
auto_sa()
|
|
: _psa(0),
|
|
_Owns(true)
|
|
{}
|
|
~auto_sa()
|
|
{
|
|
if(_psa && _Owns)
|
|
{
|
|
_psa->cLocks= 0;
|
|
::SafeArrayDestroy(_psa);
|
|
}
|
|
}
|
|
|
|
bool Ownership(bool fOwns)
|
|
{ return _Owns = fOwns; }
|
|
|
|
operator SAFEARRAY *() { return _psa; }
|
|
operator const SAFEARRAY *() const { return _psa; }
|
|
auto_sa& operator=(auto_sa& rhs)
|
|
{
|
|
if(_psa == rhs._psa)
|
|
return *this;
|
|
|
|
clear();
|
|
_Owns= rhs._Owns;
|
|
_psa= rhs.release();
|
|
|
|
return *this;
|
|
}
|
|
|
|
auto_sa& operator=(SAFEARRAY* psa)
|
|
{
|
|
clear();
|
|
_psa= psa;
|
|
_Owns= true;
|
|
return *this;
|
|
}
|
|
operator bool()
|
|
{ return NULL != _psa; }
|
|
operator !()
|
|
{ return NULL == _psa; }
|
|
|
|
void clear()
|
|
{
|
|
if(_psa && _Owns)
|
|
{
|
|
_psa->cLocks= 0;
|
|
::SafeArrayDestroy(_psa);
|
|
}
|
|
_psa= NULL;
|
|
}
|
|
|
|
SAFEARRAY* release()
|
|
{
|
|
SAFEARRAY* psa= _psa;
|
|
|
|
_psa= NULL;
|
|
return psa;
|
|
}
|
|
|
|
|
|
protected:
|
|
SAFEARRAY *_psa;
|
|
bool _Owns;
|
|
};
|