如何让对话框的滚动条生效??（在线等候)

Question

我用对话框做成一个工具条，可是滚动功能不起作用(垂直方向)，我重载了
OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
  CDialogBar::OnVScroll(nSBCode, nPos, pScrollBar);
}可是我不知道该添加什么代码，能使滚动生效。

Answer 1

SCROLLINFO sfi={sizeof(SCROLLINFO)};
sfi.fMask=SIF_ALL;
sfi.nMax=1000;
sfi.nMin=0;
sfi.nPage=100;
sfi.nPos=0;
SetScrollInfo(SB_VERT,&sfi);

Answer 2

CWnd::ScrollWindow
void ScrollWindow( int xAmount, int yAmount, LPCRECT lpRect = NULL, LPCRECT lpClipRect = NULL );

Answer 3

要处理V_SCROLL / H_SCROLL 消息，

Answer 4

1.主窗口中消息影射  ON_WM_VSCROLL()
2。函数 void CIRCEditView::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{}

3。 afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);

Answer 5

下面是我的一段代码，你看着改：void CIRCEditView::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
SCROLLINFO s;
s.cbSize = sizeof(s);
m_Scroll.GetScrollInfo(&s, SIF_POS|SIF_RANGE|SIF_PAGE);
BOOL bReDraw = FALSE; switch(nSBCode)
{
case SB_PAGEUP:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
{
if( pChannel.GetAt(CurChannel)->m_TopLine > m_VisiableLines)
pChannel.GetAt(CurChannel)->m_TopLine -= m_VisiableLines;
else
pChannel.GetAt(CurChannel)->m_TopLine = 0;
s.nPos = pChannel.GetAt(CurChannel)->m_TopLine + 1;
bReDraw = TRUE;
pChannel.GetAt(CurChannel)->m_AutoVScroll = FALSE;
}
break;
case SB_PAGEDOWN:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
{
pChannel.GetAt(CurChannel)->m_TopLine += m_VisiableLines;
if(pChannel.GetAt(CurChannel)->m_TopLine >= (pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines))
{
pChannel.GetAt(CurChannel)->m_TopLine = pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines;
pChannel.GetAt(CurChannel)->m_AutoVScroll = TRUE;
}
else
pChannel.GetAt(CurChannel)->m_AutoVScroll = FALSE;
s.nPos = pChannel.GetAt(CurChannel)->m_TopLine + 1;
bReDraw = TRUE;
}
break;
case SB_BOTTOM:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
if(pChannel.GetAt(CurChannel)->m_TopLine != (pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines))
{
pChannel.GetAt(CurChannel)->m_TopLine = pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines;
s.nPos = pChannel.GetAt(CurChannel)->m_TopLine + 1;
bReDraw = TRUE;
pChannel.GetAt(CurChannel)->m_AutoVScroll = TRUE;
}
break;
case SB_LINEDOWN:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
if(pChannel.GetAt(CurChannel)->m_TopLine < (pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines))
{
pChannel.GetAt(CurChannel)->m_TopLine ++;
if(pChannel.GetAt(CurChannel)->m_TopLine == (pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines))
pChannel.GetAt(CurChannel)->m_AutoVScroll = TRUE;
else
pChannel.GetAt(CurChannel)->m_AutoVScroll = FALSE;
s.nPos ++;
bReDraw = TRUE;
}
break;
case SB_LINEUP:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
{
if(pChannel.GetAt(CurChannel)->m_TopLine == 0)
break;
pChannel.GetAt(CurChannel)->m_TopLine --;
s.nPos --;
bReDraw = TRUE;
pChannel.GetAt(CurChannel)->m_AutoVScroll = FALSE;
}
break;
case SB_TOP:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
{
pChannel.GetAt(CurChannel)->m_TopLine = 0;
s.nPos = 1;
bReDraw = TRUE;
pChannel.GetAt(CurChannel)->m_AutoVScroll = TRUE;
}
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
if(pChannel.GetAt(CurChannel)->m_Lines > m_VisiableLines)
{
pChannel.GetAt(CurChannel)->m_TopLine = nPos - 1;
if(pChannel.GetAt(CurChannel)->m_TopLine == (pChannel.GetAt(CurChannel)->m_Lines - m_VisiableLines))
pChannel.GetAt(CurChannel)->m_AutoVScroll = TRUE;
else
pChannel.GetAt(CurChannel)->m_AutoVScroll = FALSE;
s.nPos = nPos;
bReDraw = TRUE;
}
break;
}
s.fMask = SIF_POS;
m_Scroll.SetScrollInfo(&s, TRUE);
if(bReDraw == TRUE)
{
pChannel.GetAt(CurChannel)->m_ReloadViBuf = TRUE;
RedrawWindow();
}
}

Answer 6

那是我自己的一个类。void C*View::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
SCROLLINFO s;
s.cbSize = sizeof(s);
m_Scroll.GetScrollInfo(&s, SIF_POS|SIF_RANGE|SIF_PAGE); switch(nSBCode)
{
case SB_PAGEUP:
//上翻一页
break;
case SB_PAGEDOWN:
//下翻一页
break;
case SB_BOTTOM:
//移动到底
break;
case SB_LINEDOWN:
//下翻一行
break;
case SB_LINEUP:
//上翻一行
break;
case SB_TOP:
//移动到顶部
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
                  //拖动，根据NPOS确定
s.nPos = nPos;
break;
}
s.fMask = SIF_POS;
m_Scroll.SetScrollInfo(&s, TRUE);         RedrawWindow();
}

Answer 7

学习
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