滚动条，在debug和release下运行结果不一样

h文件里

INT m_nVscroll_;
CBCGPScrollBar m_scroll_bar_;

 

cpp文件里：

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BOOL CDlgXXX::OnInitDialog()

{

    CBCGPDialog::OnInitDialog();

 

    SCROLLINFO si;

    si.cbSize = sizeof(SCROLLINFO);

    si.nMin = 0; 

    si.nMax = 100; 

    si.nPage = 5;

    si.nPos = 0;    //必须初始化，否则release下默认为16

    si.fMask = SIF_POS | SIF_RANGE | SIF_PAGE; 

    m_scroll_bar_.SetScrollInfo(&si, TRUE);

 

    CRect rtClient;

    GetClientRect(rtClient);   

    m_rt_vScroll_ = rtClient;

    m_rt_vScroll_.left = rtClient.right - 10;

    m_scroll_bar_.MoveWindow(&m_rt_vScroll_);    //滚动条所在的位置  InitUI(0);

　　

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void CDlgXXX::InitUI(int yScroll) {     const int BTN_WIDTH = 82;     const int TITLE_WIDTH = 50;     const int TITLE_HEIGHT = 25;     const int SPACE = 5;     const int LEFT_SPACE = 40 + 20;       //分割线'     CRect rtClient;     GetClientRect(rtClient);       CRect rtCtrl;     rtCtrl.left = LEFT_SPACE - 20;     rtCtrl.right = rtCtrl.left + 1;     rtCtrl.top = yScroll;     rtCtrl.bottom = rtCtrl.top + rtClient.bottom + 800;     m_st_vline0_.MoveWindow(&rtCtrl);    //左侧线       rtCtrl.right = rtClient.right;     rtCtrl.left = rtCtrl.right - 1;     rtCtrl.top = yScroll;     rtCtrl.bottom = rtClient.bottom + yScroll + 800;     m_st_vline1_.MoveWindow(&rtCtrl);    //右侧线       int iPosX = LEFT_SPACE;     int iPosY = SPACE * 3 + yScroll;    //这里注意相对位置yScroll     m_st_title_.SetWindowPos(NULL, iPosX, iPosY, TITLE_WIDTH * 2, 30, SWP_NOZORDER);       iPosY += 30 + SPACE;     int iLineWidth = rtClient.Width();     m_st_hline1_.SetWindowPos(NULL, LEFT_SPACE - 20, iPosY, iLineWidth, 1, SWP_NOZORDER);       //墙     iPosY += SPACE * 3;     m_title_wall_.SetWindowPos(NULL, iPosX, iPosY, TITLE_WIDTH, TITLE_HEIGHT, SWP_NOZORDER);     iPosY += TITLE_HEIGHT;     m_btn_wall_.SetWindowPos(NULL, iPosX, iPosY, BTN_WIDTH, BTN_WIDTH, SWP_NOZORDER);     iPosX += BTN_WIDTH + 3;     m_btn_room_.SetWindowPos(NULL, iPosX, iPosY, BTN_WIDTH, BTN_WIDTH, SWP_NOZORDER);     iPosX += BTN_WIDTH + 3;     m_btn_region_.SetWindowPos(NULL, iPosX, iPosY, BTN_WIDTH, BTN_WIDTH, SWP_NOZORDER); }   void CDlgXXX::OnSize(UINT nType, int cx, int cy) {     CBCGPDialog::OnSize(nType, cx, cy);       if (CMainFrame::gThis != NULL && m_scroll_bar_.m_hWnd != NULL)     {               BOOL b1 = CMainFrame::gThis->IsZoomed();         if (!b1)         {             CRect rtClient;             GetClientRect(rtClient);                m_rt_vScroll_ = rtClient;             m_rt_vScroll_.left = rtClient.right - 10;               m_scroll_bar_.MoveWindow(&m_rt_vScroll_);             m_scroll_bar_.SetScrollRange(0, 250);         }         m_scroll_bar_.ShowWindow(FALSE);     }       int sy= -m_nVscroll_;     if (m_st_vline0_.m_hWnd)     {         InitUI(sy);     } }

　　滚动条的相应：

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void CDlgXXX::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) {     SCROLLINFO si;      si.cbSize = sizeof(si);      m_scroll_bar_.GetScrollInfo(&si, SIF_POS | SIF_PAGE | SIF_RANGE);      m_nVscroll_ = si.nPos;      switch(nSBCode)      {      case SB_LINEDOWN:         {             m_nVscroll_ += 20;               if (m_nVscroll_ > (si.nMax - si.nMin - si.nPage ))              {                  m_nVscroll_ = si.nMax - si.nMin - si.nPage;              }          }         break;     case SB_LINEUP:         {             m_nVscroll_ -= 20;              if (m_nVscroll_ < si.nMin)              {                  m_nVscroll_ = 0;              }         }         break;      case SB_PAGEDOWN:         {             m_nVscroll_ += 8 * si.nPage;               if (m_nVscroll_ > (si.nMax - si.nMin - si.nPage))              {                  m_nVscroll_ = si.nMax - si.nMin - si.nPage;                }         }         break;      case SB_PAGEUP:          {             m_nVscroll_ -= 8 * si.nPage;              if (m_nVscroll_ < si.nMin)              {                  m_nVscroll_ = 0;              }         }         break;      case SB_THUMBTRACK:         {             m_nVscroll_ = nPos;         }         break;     }        if (si.nPos != m_nVscroll_)     {         ScrollWindow(0, -(m_nVscroll_ - si.nPos), NULL ,NULL);     }       si.nPos = m_nVscroll_;      m_scroll_bar_.SetScrollInfo(&si, TRUE);        CBCGPDialog::OnVScroll(nSBCode, nPos, pScrollBar); }   BOOL CDlgXXX::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) {     //向下滚      if (zDelta == -120)     {         m_nVscroll_ += 10;          OnVScroll(SB_PAGEDOWN, m_nVscroll_, &m_scroll_bar_);      }      else if (zDelta == 120)      {          m_nVscroll_ -= 10;         OnVScroll(SB_PAGEUP, m_nVscroll_, &m_scroll_bar_);     }       return CBCGPDialog::OnMouseWheel(nFlags, zDelta, pt); }