mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
232 lines
4.5 KiB
232 lines
4.5 KiB
//---------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 1992 - 1995
|
|
//
|
|
// File: cenumvar.cxx
|
|
//
|
|
// Contents: Windows NT 3.5 Enumerator Code
|
|
//
|
|
// CWinNTEnumVariant::Create
|
|
// CWinNTEnumVariant::CWinNTEnumVariant
|
|
// CWinNTEnumVariant::~CWinNTEnumVariant
|
|
// CWinNTEnumVariant::QueryInterface
|
|
// CWinNTEnumVariant::AddRef
|
|
// CWinNTEnumVariant::Release
|
|
// CWinNTEnumVariant::Next
|
|
// CWinNTEnumVariant::Skip
|
|
// CWinNTEnumVariant::Clone
|
|
//
|
|
// History:
|
|
//----------------------------------------------------------------------------
|
|
#include "winnt.hxx"
|
|
#pragma hdrstop
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::CWinNTEnumVariant
|
|
//
|
|
// Synopsis:
|
|
//
|
|
//
|
|
// Arguments:
|
|
//
|
|
//
|
|
// Returns:
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
CWinNTEnumVariant::CWinNTEnumVariant()
|
|
{
|
|
//
|
|
// Set the reference count on the enumerator.
|
|
//
|
|
m_cRef = 1;
|
|
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::~CWinNTEnumVariant
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns:
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
CWinNTEnumVariant::~CWinNTEnumVariant()
|
|
{
|
|
//
|
|
// Bump down the reference count on the Collection object
|
|
//
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::QueryInterface
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments: [iid]
|
|
// [ppv]
|
|
//
|
|
// Returns: HRESULT
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
STDMETHODIMP
|
|
CWinNTEnumVariant::QueryInterface(REFIID iid, void FAR* FAR* ppv)
|
|
{
|
|
*ppv = NULL;
|
|
|
|
if (ppv == NULL) {
|
|
RRETURN(E_POINTER);
|
|
}
|
|
|
|
|
|
if (iid == IID_IUnknown || iid == IID_IEnumVARIANT) {
|
|
|
|
*ppv = this;
|
|
|
|
}
|
|
else {
|
|
|
|
return ResultFromScode(E_NOINTERFACE);
|
|
}
|
|
|
|
AddRef();
|
|
return NOERROR;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::AddRef
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments:
|
|
//
|
|
// Returns: HRESULT
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//----------------------------------------------------------------------------
|
|
STDMETHODIMP_(ULONG)
|
|
CWinNTEnumVariant::AddRef(void)
|
|
{
|
|
|
|
return ++m_cRef;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::Release
|
|
//
|
|
// Synopsis:
|
|
//
|
|
//
|
|
// Arguments: [void]
|
|
//
|
|
// Returns:
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//----------------------------------------------------------------------------
|
|
STDMETHODIMP_(ULONG)
|
|
CWinNTEnumVariant::Release(void)
|
|
{
|
|
|
|
|
|
if(--m_cRef == 0){
|
|
|
|
delete this;
|
|
return 0;
|
|
}
|
|
|
|
return m_cRef;
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::Skip
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments: [cElements]
|
|
//
|
|
// Returns: HRESULT
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
STDMETHODIMP
|
|
CWinNTEnumVariant::Skip(ULONG cElements)
|
|
{
|
|
|
|
RRETURN_EXP_IF_ERR(E_NOTIMPL);
|
|
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::Reset
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments: []
|
|
//
|
|
// Returns: HRESULT
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History:
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
STDMETHODIMP
|
|
CWinNTEnumVariant::Reset()
|
|
{
|
|
|
|
RRETURN_EXP_IF_ERR(E_NOTIMPL);
|
|
}
|
|
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// Function: CWinNTEnumVariant::Clone
|
|
//
|
|
// Synopsis:
|
|
//
|
|
// Arguments: [pCollection]
|
|
// [ppEnumVariant]
|
|
//
|
|
// Returns: HRESULT
|
|
//
|
|
// Modifies:
|
|
//
|
|
// History: 01-30-95 krishnag Created.
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
STDMETHODIMP
|
|
CWinNTEnumVariant::Clone(IEnumVARIANT FAR* FAR* ppenum)
|
|
{
|
|
RRETURN_EXP_IF_ERR(E_NOTIMPL);
|
|
}
|