add scroolbar to dialog is easy,add flag in dialgon property , then 4 func are need to change or add.
before all,add some var in class.
// Construction
public:
int m_nCurHeight;
int m_nCurWidth;
int m_nScrollPos;
int m_nScrollPos2;
CRect m_rect;
1:func:
BOOL SecondTimeCheckDlg::OnInitDialog()
{
CDialog::OnInitDialog();
com.initGuanQuAndCunZhuang();
com.initJieYuCuoShi();
//showOneInfo(com.getRenCode());
//add for scrollbar.
GetWindowRect(m_rect);
m_nScrollPos = 0;
m_nScrollPos2=0;
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
2:
void SecondTimeCheckDlg::OnSize(UINT nType, int cx, int cy)
{
CDialog::OnSize(nType, cx, cy);
//add for scroll bar.
m_nCurHeight = cy;
m_nCurWidth=cx;
int nScrollMax;
int nScrollMax2;
if (cy < m_rect.Height())
{
nScrollMax = m_rect.Height() - cy;
}
else
nScrollMax = 0;
if(cx<m_rect.Width())
{
nScrollMax2=m_rect.Width()-cx;
}else
nScrollMax2=0;
SCROLLINFO si;
SCROLLINFO si2;
si.cbSize = sizeof(SCROLLINFO);
si2.cbSize = sizeof(SCROLLINFO);
si2.fMask = SIF_ALL;
si.fMask = SIF_ALL; // SIF_ALL = SIF_PAGE | SIF_RANGE | SIF_POS;
si.nMin = 0;
si2.nMin=0;
si2.nMax = nScrollMax2;
si.nMax = nScrollMax;
si2.nPage =si2.nMax /10;
si.nPage = si.nMax/10;
si2.nPos=0;
si.nPos = 0;
SetScrollInfo(SB_VERT, &si, TRUE);
SetScrollInfo(SB_HORZ,&si2,TRUE);
// TODO: Add your message handler code here
}
3:
void SecondTimeCheckDlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
// TODO: Add your message handler code here and/or call default
int nDelta;
int nMaxPos = m_rect.Width() - m_nCurWidth;
switch (nSBCode)
{
case SB_LINEDOWN:
if (m_nScrollPos2 >= nMaxPos)
return;
nDelta = min(nMaxPos/100,nMaxPos-m_nScrollPos2);
break;
case SB_LINEUP:
if (m_nScrollPos2 <= 0)
return;
nDelta = -min(nMaxPos/100,m_nScrollPos2);
break;
case SB_PAGEDOWN:
if (m_nScrollPos2 >= nMaxPos)
return;
nDelta = min(nMaxPos/10,nMaxPos-m_nScrollPos2);
break;
case SB_THUMBPOSITION:
nDelta = (int)nPos - m_nScrollPos2;
break;
case SB_PAGEUP:
if (m_nScrollPos2 <= 0)
return;
nDelta = -min(nMaxPos/10,m_nScrollPos2);
break;
default:
return;
}
m_nScrollPos2 += nDelta;
SetScrollPos(SB_HORZ,m_nScrollPos2,TRUE);
//ScrollWindow(0,-nDelta);
ScrollWindow(-nDelta,0);
//end add.
CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}
4:
void SecondTimeCheckDlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
// TODO: Add your message handler code here and/or call default
//add..
int nDelta;
int nMaxPos = m_rect.Height() - m_nCurHeight;
switch (nSBCode)
{
case SB_LINEDOWN:
if (m_nScrollPos >= nMaxPos)
return;
nDelta = min(nMaxPos/100,nMaxPos-m_nScrollPos);
break;
case SB_LINEUP:
if (m_nScrollPos <= 0)
return;
nDelta = -min(nMaxPos/100,m_nScrollPos);
break;
case SB_PAGEDOWN:
if (m_nScrollPos >= nMaxPos)
return;
nDelta = min(nMaxPos/10,nMaxPos-m_nScrollPos);
break;
case SB_THUMBPOSITION:
nDelta = (int)nPos - m_nScrollPos;
break;
case SB_PAGEUP:
if (m_nScrollPos <= 0)
return;
nDelta = -min(nMaxPos/10,m_nScrollPos);
break;
default:
return;
}
m_nScrollPos += nDelta;
SetScrollPos(SB_VERT,m_nScrollPos,TRUE);
ScrollWindow(0,-nDelta);
CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}