Re: Setting the exact scroll position

From:

Scoots <bssalmons@traxcorp.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 26 Jun 2007 10:16:26 -0700

Message-ID:

<1182878186.007320.108040@n2g2000hse.googlegroups.com>

Okay, so I found some information that getscrollpos and setscrollpos
won't do the trick because they don't actually send a message to the
main control they are attached to. However, SB_THUMBSCROLL should
work, right?

I have the following code to trigger the event, and I've tried
attaching the SB_THUMBSCROLL to the pScrollBar pointer of the
OnVScroll by storing it, but that didn't work either. Am I off the
ball?

void CColorSyntaxRichEdit::OnVScroll(UINT nSBCode, UINT nPos,
CScrollBar* pScrollBar)
{
    // TODO: Add your message handler code here and/or call default

    // NeedReformat=true;
    if (nSBCode!=SB_THUMBPOSITION){
        if (!hasTimer){
            SetTimer(timerID,100,NULL);
        }
    CRichEditCtrl::OnVScroll(nSBCode, nPos, pScrollBar);
}

void CColorSyntaxRichEdit::OnTimer(UINT nIDEvent)
{
    if (nIDEvent==(unsigned int)timerID){

            int position=this->GetScrollPos(SB_VERT);
            ReformatScreen(); //my custom
coloring method for redrawing visible lines.
            OnVScroll(SB_THUMBPOSITION,position,NULL);
            //CRichEditCtrl::UpdateWindow();
            CRichEditCtrl::OnTimer(nIDEvent);
            KillTimer(timerID);
    }
}