How does an IDC_SCROLLBAR1 interface with an integer in the interface?

cjb1981

How does an IDC_SCROLLBAR1 interface with an integer in the interface?
That is to say, how to find it in the upper part of the code can achieve this function.
Hope everyone tell me

cjb1981

BOOL CT6ttDlg :: OnInitDialog ()
{
.............

// TODO: Add extra initialization here
m_scrollBar.SetScrollRange (0,100);
Ranch
return TRUE; // return TRUE unless you set the focus to a control
}

void CT6ttDlg :: OnVScroll (UINT nSBCode, UINT nPos, CScrollBar * pScrollBar)
{
// TODO: Add your message handler code here and / or call default
if (pScrollBar-> GetDlgCtrlID () == IDC_SCROLLBAR1)
{
int nCurrentPos = pScrollBar-> GetScrollPos ();
TRACE ("nCurrentPos =% d\n", nCurrentPos);
switch (nSBCode)
{
// case SB_THUMBTRACK:
case SB_THUMBPOSITION:
pScrollBar-> SetScrollPos (nPos);
break;
case SB_LINEUP:
pScrollBar-> SetScrollPos (nCurrentPos-1);
break;
case SB_LINEDOWN:
pScrollBar-> SetScrollPos (nCurrentPos + 1);
break;
case SB_PAGEUP:
pScrollBar-> SetScrollPos (nCurrentPos-5);
break;
case SB_PAGEDOWN:
pScrollBar-> SetScrollPos (nCurrentPos + 5);
break;
}
}
Ranch
CDialog :: OnVScroll (nSBCode, nPos, pScrollBar);
}