_CrtIsValidHeapPointer(PUserData) on exit

添加时间:2008-09-25 原文发表时间:2008-09-25 人气:2

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Hello, I've got a problem that I'm not able to cope with... I've 2 forms that connect to MySql database, and the case is that if I use CBrush and ON_WM_CTLCOLOR() message on my second form I got this error at the exit. I can change the background of the first problem without any problem. That's a SDI application and I change CurrentView with SelectView procedure (written in CMainFrm). Here's the code for the ViewClass of my second form:

    
            #include "stdafx.h" 
        
            #include "klienci2.h" 
        
            #include "assignmentsView.h" 
        
            #include "assignments_MULTI.h" 
        
            #include "klienci2Doc.h" 
        
            #include "OurConstants.h" 
        
            #include "MainFrm.h" 
        
            IMPLEMENT_DYNCREATE(CassignmentsView, CRecordView) 
        
            BEGIN_MESSAGE_MAP(CassignmentsView, CRecordView) 
        
                ON_BN_CLICKED(IDC_POWROT, &CassignmentsView::OnPowrot) 
        
                ON_WM_CTLCOLOR() 
        
            END_MESSAGE_MAP() 
        
            CassignmentsView::CassignmentsView():CRecordView(CassignmentsView::IDD),m_pSet(NULL) 
        
            , m_koszty(0) 
        
            { 
        
                m_brBrush.CreateSolidBrush(RGB(255, 255, 255)); 
        
            } 
        
            #ifdef DEBUG 
        
            void CassignmentsView::AssertValid() const 
        
            { 
        
                CRecordView::AssertValid(); 
        
            } 
        
            void CassignmentsView::Dump(CDumpContext& dc) const 
        
            { 
        
                CRecordView::Dump(dc); 
        
            } 
        
            #endif //DEBUG 
        
            void CassignmentsView::DoDataExchange(CDataExchange *pDX) 
        
            { 
        
                CRecordView::DoDataExchange(pDX); 
        
                m_koszty=0; 
        
                m_pSet->MoveFirst(); 
        
                while(!m_pSet->IsEOF()) 
        
                { 
        
                    m_koszty+=m_pSet->m_tariffsvalue; 
        
                    m_pSet->MoveNext(); 
        
                } 
        
                m_koszty+=m_pSet->m_tariffsvalue; 
        
                DDX_Text(pDX, IDC_KOSZTY, m_koszty); 
        
            } 
        
            Cassignments_MULTI* CassignmentsView::GetRecordset() 
        
            { 
        
                ASSERT(m_pSet != NULL); 
        
                return m_pSet; 
        
            } 
        
            CRecordset* CassignmentsView::OnGetRecordset() 
        
            { 
        
                return m_pSet; 
        
            } 
        
            void CassignmentsView::OnInitialUpdate() 
        
            { 
        
                //GetDlgItem(IDC_STATIC1)->ShowWindow(FALSE); 
        
                BeginWaitCursor(); 
        
                Cklienci2Doc* pDoc = static_cast<Cklienci2Doc*>(GetDocument()); 
        
                m_pSet= &pDoc->m_assignmentsMULTI; 
        
                m_pSet->m_pDatabase=pDoc->m_klienci2Set.m_pDatabase; 
        
                m_pSet->m_CustomerIDparam= pDoc->m_klienci2Set.m_id; 
        
                m_pSet->m_strFilter= "[assignments].[customerid]=? AND [assignments].[tariffid]=[tariffs].[id]"; 
        
                CRecordView::OnInitialUpdate(); 
        
                EndWaitCursor(); 
        
            } 
        
            void CassignmentsView::OnPowrot() 
        
            { 
        
                // TODO: Add your control notification handler code here 
        
                static_cast<CMainFrame*>(GetParentFrame())->SelectView(KLIENCI2_VIEW); 
        
            } 
        
            void CassignmentsView::OnActivateView(BOOL bActivate, CView* pActivateView, CView* pDeactiveView) 
        
            { 
        
                // TODO: Add your specialized code here and/or call the base class 
        
                if (bActivate) 
        
                { 
        
                    Cklienci2Doc* pDoc = GetDocument(); 
        
                    CMainFrame* pMFrame= static_cast<CMainFrame*>(GetParentFrame()); 
        
                    if (pMFrame->m_CurrentViewID==KLIENCI2_VIEW) 
        
                    { 
        
                        if(!m_pSet->IsOpen()) 
        
                            return; 
        
                        m_pSet->m_CustomerIDparam=pDoc->m_klienci2Set.m_id; 
        
                        m_pSet->Requery(); 
        
                        if(m_pSet->IsEOF()) 
        
                                AfxMessageBox(L" Brak zobowiązań klienta"); 
        
                    } 
        
                    CString strTitle=_T("Table Name; "); 
        
                    CString strTable=m_pSet->GetTableName(); 
        
                    if(!strTable.IsEmpty()) 
        
                        strTitle+=strTable; 
        
                    else 
        
                        strTitle+=_T("Orders - Multiple Tables"); 
        
                    pDoc->SetTitle(strTitle); 
        
                    CRecordView::OnInitialUpdate(); 
        
                } 
        
                CRecordView::OnActivateView(bActivate, pActivateView, pDeactiveView); 
        
            } 
        
            BOOL CassignmentsView::PreCreateWindow(CREATESTRUCT& cs) 
        
            { 
        
                // TODO: Add your specialized code here and/or call the base class 
        
                return CRecordView::PreCreateWindow(cs); 
        
            } 
        
            HBRUSH CassignmentsView::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)  
        
            { 
        
                return m_brBrush; 
        
            } 
        
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