408 lines
8.7 KiB
C++
408 lines
8.7 KiB
C++
//---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1995
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//
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// File: cenumUserCollection.cxx
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//
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// Contents: Windows NT 3.5 UserCollection Enumeration Code
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//
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// CNDSUserCollectionEnum::CNDSUserCollectionEnum()
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// CNDSUserCollectionEnum::CNDSUserCollectionEnum
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// CNDSUserCollectionEnum::EnumObjects
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// CNDSUserCollectionEnum::EnumObjects
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//
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// History:
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//----------------------------------------------------------------------------
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#include "NDS.hxx"
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#pragma hdrstop
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//+---------------------------------------------------------------------------
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//
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// Function: CNDSEnumVariant::Create
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//
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// Synopsis:
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//
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// Arguments: [pCollection]
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// [ppEnumVariant]
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//
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// Returns: HRESULT
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//
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// Modifies:
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//
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// History: 01-30-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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HRESULT
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CNDSUserCollectionEnum::Create(
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BSTR bstrUserName,
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CNDSUserCollectionEnum FAR* FAR* ppenumvariant,
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VARIANT var,
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CCredentials& Credentials
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)
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{
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HRESULT hr = NOERROR;
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CNDSUserCollectionEnum FAR* penumvariant = NULL;
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DWORD dwSLBound = 0;
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DWORD dwSUBound = 0;
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*ppenumvariant = NULL;
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penumvariant = new CNDSUserCollectionEnum();
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if (!penumvariant) {
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hr = E_OUTOFMEMORY;
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BAIL_ON_FAILURE(hr);
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}
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hr = ADsAllocString(bstrUserName, &(penumvariant->_bstrUserName));
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BAIL_ON_FAILURE(hr);
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hr = penumvariant->ValidateVariant(
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var
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);
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BAIL_ON_FAILURE(hr);
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penumvariant->_Credentials = Credentials;
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*ppenumvariant = penumvariant;
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RRETURN(hr);
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error:
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delete penumvariant;
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RRETURN(hr);
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}
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CNDSUserCollectionEnum::CNDSUserCollectionEnum():
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_dwSLBound(0),
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_dwSUBound(0),
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_dwIndex(0),
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_bstrUserName(0),
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_dwMultiple(0)
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{
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VariantInit(&_vMembers);
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}
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CNDSUserCollectionEnum::~CNDSUserCollectionEnum()
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{
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VariantClear(&_vMembers);
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}
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HRESULT
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CNDSUserCollectionEnum::EnumUserMembers(
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ULONG cElements,
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VARIANT FAR* pvar,
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ULONG FAR* pcElementFetched
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)
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{
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HRESULT hr = S_OK;
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IDispatch *pDispatch = NULL;
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DWORD i = 0;
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while (i < cElements) {
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if (_dwMultiple == MULTIPLE) {
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hr = GetUserMultipleMemberObject(&pDispatch);
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}else if (_dwMultiple == SINGLE){
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hr = GetUserSingleMemberObject(&pDispatch);
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}else {
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hr = S_FALSE;
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}
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if (hr == S_FALSE) {
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break;
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}
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VariantInit(&pvar[i]);
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pvar[i].vt = VT_DISPATCH;
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pvar[i].pdispVal = pDispatch;
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(*pcElementFetched)++;
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i++;
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}
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RRETURN(hr);
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}
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HRESULT
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CNDSUserCollectionEnum::GetUserMultipleMemberObject(
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IDispatch ** ppDispatch
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)
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{
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VARIANT v;
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HRESULT hr = S_OK;
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WCHAR szADsPathName[MAX_PATH];
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WCHAR szNDSTreeName[MAX_PATH];
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*ppDispatch = NULL;
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if (_dwIndex > _dwSUBound) {
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RRETURN(S_FALSE);
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}
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VariantInit(&v);
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hr = SafeArrayGetElement(
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V_ARRAY(&_vMembers),
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(long FAR *)&_dwIndex,
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&v
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);
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BAIL_ON_FAILURE(hr);
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hr = BuildNDSTreeNameFromADsPath(
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_bstrUserName,
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szNDSTreeName
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);
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BAIL_ON_FAILURE(hr);
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// Make the first two characters "//" instead of "\\"
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szNDSTreeName[0] = (WCHAR)'/';
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szNDSTreeName[1] = (WCHAR)'/';
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hr = BuildADsPathFromNDSPath(
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szNDSTreeName,
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v.bstrVal,
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szADsPathName
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);
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BAIL_ON_FAILURE(hr);
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hr = CNDSGenObject::CreateGenericObject(
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szADsPathName,
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L"group",
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_Credentials,
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ADS_OBJECT_BOUND,
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IID_IDispatch,
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(void **)ppDispatch
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);
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BAIL_ON_FAILURE(hr);
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_dwIndex++;
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error:
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VariantClear(&v);
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if (FAILED(hr)) {
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hr = S_FALSE;
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}
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RRETURN(hr);
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}
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HRESULT
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CNDSUserCollectionEnum::GetUserSingleMemberObject(
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IDispatch ** ppDispatch
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)
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{
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HRESULT hr = S_OK;
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WCHAR szADsPathName[MAX_PATH];
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WCHAR szNDSTreeName[MAX_PATH];
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*ppDispatch = NULL;
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if (_dwIndex == 1) {
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RRETURN(S_FALSE);
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}
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hr = BuildNDSTreeNameFromADsPath(
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_bstrUserName,
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szNDSTreeName
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);
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BAIL_ON_FAILURE(hr);
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// Make the first two characters "//" instead of "\\"
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szNDSTreeName[0] = (WCHAR)'/';
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szNDSTreeName[1] = (WCHAR)'/';
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hr = BuildADsPathFromNDSPath(
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szNDSTreeName,
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_vMembers.bstrVal,
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szADsPathName
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);
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BAIL_ON_FAILURE(hr);
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hr = CNDSGenObject::CreateGenericObject(
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szADsPathName,
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L"group",
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_Credentials,
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ADS_OBJECT_BOUND,
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IID_IDispatch,
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(void **)ppDispatch
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);
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BAIL_ON_FAILURE(hr);
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_dwIndex++;
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error:
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if (FAILED(hr)) {
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hr = S_FALSE;
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}
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RRETURN(hr);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: CNDSUserCollectionEnum::Next
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//
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// Synopsis: Returns cElements number of requested NetOle objects in the
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// array supplied in pvar.
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//
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// Arguments: [cElements] -- The number of elements requested by client
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// [pvar] -- ptr to array of VARIANTs to for return objects
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// [pcElementFetched] -- if non-NULL, then number of elements
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// -- actually returned is placed here
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//
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// Returns: HRESULT -- S_OK if number of elements requested are returned
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// -- S_FALSE if number of elements is < requested
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//
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// Modifies:
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//
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// History: 11-3-95 krishnag Created.
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//
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//----------------------------------------------------------------------------
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STDMETHODIMP
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CNDSUserCollectionEnum::Next(
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ULONG cElements,
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VARIANT FAR* pvar,
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ULONG FAR* pcElementFetched
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)
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{
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ULONG cElementFetched = 0;
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HRESULT hr = S_OK;
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hr = EnumUserMembers(
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cElements,
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pvar,
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&cElementFetched
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);
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if (pcElementFetched) {
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*pcElementFetched = cElementFetched;
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}
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RRETURN(hr);
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}
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HRESULT
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CNDSUserCollectionEnum::ValidateVariant(
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VARIANT var
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)
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{
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if (V_VT(&var) == (VT_VARIANT|VT_ARRAY)) {
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_dwMultiple = MULTIPLE;
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RRETURN(ValidateMultipleVariant(var));
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}else if (V_VT(&var) == VT_BSTR){
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_dwMultiple = SINGLE;
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RRETURN(ValidateSingleVariant(var));
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}else if (V_VT(&var) == VT_EMPTY){
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_dwMultiple = EMPTY;
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RRETURN(S_OK);
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}
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RRETURN(E_FAIL);
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}
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HRESULT
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CNDSUserCollectionEnum::ValidateMultipleVariant(
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VARIANT var
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)
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{
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HRESULT hr = S_OK;
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DWORD dwSLBound = 0;
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DWORD dwSUBound = 0;
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if (!(V_VT(&var) == (VT_VARIANT|VT_ARRAY))) {
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return(E_FAIL);
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}
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//
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// Check that there is only one dimension in this array
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//
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if ((V_ARRAY(&var))->cDims != 1) {
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hr = E_FAIL;
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BAIL_ON_FAILURE(hr);
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}
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//
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// Check that there is atleast one element in this array
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//
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if ((V_ARRAY(&var))->rgsabound[0].cElements == 0){
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hr = E_FAIL;
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BAIL_ON_FAILURE(hr);
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}
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//
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// We know that this is a valid single dimension array
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//
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hr = SafeArrayGetLBound(
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V_ARRAY(&var),
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1,
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(long FAR *)&dwSLBound
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);
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BAIL_ON_FAILURE(hr);
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hr = SafeArrayGetUBound(
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V_ARRAY(&var),
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1,
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(long FAR *)&dwSUBound
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);
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BAIL_ON_FAILURE(hr);
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hr = VariantCopy(&_vMembers, &var);
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BAIL_ON_FAILURE(hr);
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_dwSUBound = dwSUBound;
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_dwSLBound = dwSLBound;
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_dwIndex = dwSLBound;
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error:
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RRETURN(hr);
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}
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HRESULT
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CNDSUserCollectionEnum::ValidateSingleVariant(
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VARIANT var
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)
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{
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HRESULT hr = S_OK;
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if(!( V_VT(&var) == VT_BSTR)){
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return(E_FAIL);
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}
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hr = VariantCopy(&_vMembers, &var);
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BAIL_ON_FAILURE(hr);
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_dwIndex = 0;
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error:
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RRETURN(hr);
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}
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