Groups および Users Append、ChangePassword メソッドの例 (VC++)

この例では、新規 Group および新規 User をシステムに加えることによって、Groups の Append メソッドと Users の Append メソッドの機能を示します。新規 Group は、新規 User の Groups コレクションに追加されます。したがって、新規 User が Group に追加されます。また、ChangePassword メソッドは、User のパスワードを指定するためにも使用されます。

#import "c:\Program Files\Common Files\system\ado\msadox.dll" \
    no_namespace

#include "iostream.h"
#include "stdio.h"
#include "conio.h"

//Function declarations
inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};
void GroupX(void);

//////////////////////////////////////////////////////////
//                                                      //
//      Main Function                                   //
//                                                      //
//////////////////////////////////////////////////////////
void main()
{
    if(FAILED(::CoInitialize(NULL)))
        return; 

    GroupX();

    ::CoUninitialize();
}

//////////////////////////////////////////////////////////
//                                                      //
//         GroupX Function                              //
//                                                      //
//////////////////////////////////////////////////////////
void GroupX(void)
{
    HRESULT hr = S_OK;

    // Define ADOX object pointers.
    // Initialize pointers on define.
    // These are in the ADOX::  namespace.
    _CatalogPtr m_pCatalog   = NULL;
    _UserPtr m_pUserNew   = NULL;
    _UserPtr m_pUser  = NULL;
    _GroupPtr m_pGroup = NULL;

    // Define String Variables.
    _bstr_t strCnn("Provider=Microsoft.JET.OLEDB.4.0;"
        "Data source = c:\\Program Files\\Microsoft Office\\"
        "Office\\Samples\\Northwind.mdb;"
        "jet oledb:system database=c:\\WINNT\\system32\\system.mdw");

    try
    {
        TESTHR(hr = m_pCatalog.CreateInstance(__uuidof (Catalog)));
        m_pCatalog->PutActiveConnection(strCnn);

        // Create and append new group with a string.
        m_pCatalog->Groups->Append("Accounting");

        // Create and append new user with an object.
        TESTHR(hr = m_pUserNew.CreateInstance(__uuidof(User)));
        m_pUserNew->PutName("Pat Smith");
        m_pUserNew->ChangePassword("","Password1");
        m_pCatalog->Users->Append(
            _variant_t((IDispatch *)m_pUserNew),"");

        // Make the user Pat Smith a member of the 
        // Accounting group by creating and adding the
        // appropriate Group object to the user's Groups 
        // collection.The same is accomplished if a User
        // object representing Pat Smith is created and 
        // appended to the Accounting group Users collection 
        m_pUserNew->Groups->Append("Accounting");

        // Enumerate all User objects in the 
        // catalog's Users collection.
        long lUsrIndex;
        long lGrpIndex;
        _variant_t vIndex;
        for(lUsrIndex=0;lUsrIndex<=m_pCatalog->Users->Count;lUsrIndex++)
        {
            vIndex = lUsrIndex;
            m_pUser = m_pCatalog->Users->GetItem(vIndex);
            cout<<"  "<<m_pUser->Name <<endl;
            cout<<"   Belongs to these groups:"<<endl;

            // Enumerate all Group objects in each User
            // object's Groups collection.
            if(m_pUser->Groups->Count != 0)
            {
                for(lGrpIndex=0;lGrpIndex<=m_pUser->Groups->
                    Count;lGrpIndex++)
                {
                    vIndex = lGrpIndex;
                    m_pGroup = m_pUser->Groups->GetItem(vIndex);
                    cout<<"     "<< m_pGroup->Name<<endl;
                }
            }
            else
            {
                cout<<"       [None]"<<endl;
            }
        }

        // Enumerate all Group objects in the default 
        // workspace's Groups collection.
        for(lGrpIndex=0;lGrpIndex<=m_pCatalog->Groups->Count;lGrpIndex++)
        {
            vIndex = lGrpIndex;
            m_pGroup = m_pCatalog->Groups->GetItem(vIndex);
            cout<<"   "<< m_pGroup->Name <<endl;
            cout<<"    Has as its members:"<<endl;
            
            // Enumerate all User objects in each Group
            // object's Users Collection.
            if(m_pGroup->Users->Count != 0)
            {
                for(lUsrIndex=0;lUsrIndex<=m_pGroup->Users->Count;
                    lUsrIndex++)
                {
                    vIndex = lUsrIndex;
                    m_pUser = m_pGroup->Users->GetItem(vIndex);
                    cout<<"    "<<m_pUser->Name<<endl;
                }
            }
            else
            {
                cout<<"      [None]"<<endl;
            }
        }

        // Delete new User and Group object because this 
        // is only a demonstration.
        m_pCatalog->Users->Delete("Pat Smith");
        m_pCatalog->Groups->Delete("Accounting");
    }

    catch(_com_error &e)
    {
        // Notify the user of errors if any.
        _bstr_t bstrSource(e.Source());
        _bstr_t bstrDescription(e.Description());
          
        printf("\n\tSource :  %s \n\tdescription : %s \n ",
             (LPCSTR)bstrSource,(LPCSTR)bstrDescription);
    }

    catch(...)
    {
        cout << "Error occured in include files...."<< endl;
    }
}