1     //初始化滚动条

2     SCROLLINFO si = { 0 };

3     si.cbSize = sizeof(si);

4     si.fMask = SIF_RANGE | SIF_PAGE;

5     si.nMin = 0;

6     si.nMax = 100;

7     si.nPage = 10;

8     m_scroll.SetScrollInfo(&si);

 1 void CMFCApplication6Dlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)

 2 {

 3     SCROLLINFO si = { 0 };

 4     si.cbSize = sizeof(si);

 5     si.fMask = SIF_ALL;

 6     pScrollBar->GetScrollInfo(&si);

 7

 8     int nNewPos = si.nPos;

 9     switch (nSBCode) {

10     case SB_THUMBTRACK:

11         nNewPos = nPos;

12         break;

13     case SB_LINELEFT:

14         nNewPos -= 1;

15         break;

16     case SB_LINERIGHT:

17         nNewPos += 1;

18         break;

19     case SB_PAGELEFT:

20         nNewPos -= si.nPage;

21         break;

22     case SB_PAGERIGHT:

23         nNewPos += si.nPage;

24         break;

25     default:

26         break;

27     }

28     if (nNewPos > si.nMax)

29         nNewPos = si.nMax;

30     if (nNewPos < si.nMin)

31         nNewPos = si.nMin;

32     pScrollBar->SetScrollPos(nNewPos);

33

34     CString s;

35     s.Format(TEXT("%d"), nNewPos);

36     m_pos = s;

37     UpdateData(FALSE);

38     CDialogEx::OnHScroll(nSBCode, nPos, pScrollBar);

39 }