C / C++ / MFC

void CImageViewer::PreSubclassWindow()
{
	CRect rect;
	GetClientRect( &rect );

	// set horizontal scroll bar
	SCROLLINFO si;
	ZeroMemory( &si, sizeof( SCROLLINFO ));
	si.cbSize = sizeof( SCROLLINFO );
	si.fMask = SIF_ALL;
	si.nMin = 0;
	si.nMax = nScrWidth;
	si.nPage = rect.Width();
	si.nPos = 0;
	si.nTrackPos = 0;
	SetScrollInfo( SB_HORZ, &si );
	CStatic::PreSubclassWindow();
}

void CImageViewer::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
	SCROLLINFO si;
	int nScrollPos = nPos;
	pScrollBar->GetScrollInfo( &si );
	int nCurPos = si.nPos;
	int nMin = si.nMin;
	int nMax =  si.nMax;

	switch( nSBCode )
	{
		case SB_THUMBPOSITION:
		case SB_THUMBTRACK:
			nScrollPos = si.nTrackPos;
			break;
		case SB_LEFT:
			nScrollPos = nMin;
			break;
		case SB_RIGHT:
			nScrollPos = nMax;
			break;
		case SB_LINELEFT:
			nScrollPos = nCurPos - 2;
			break;
		case SB_LINERIGHT:
			nScrollPos = nCurPos + 2;
			break;
		case SB_PAGELEFT:
			nScrollPos = nCurPos - 5;
			break;
		case SB_PAGERIGHT:
			nScrollPos = nCurPos + 5;
			break;
		case SB_ENDSCROLL:
			nScrollPos = nCurPos;
			break;
	}

	if(nScrollPos < nMin) nScrollPos = nMin;
	else if(nScrollPos > nMax) nScrollPos = nMax;
	pScrollBar->SetScrollPos( nScrollPos );
	Invalidate();
	CStatic::OnHScroll(nSBCode, nPos, pScrollBar);
}

kk.tvm wrote:

But i can't change scroll position.

lek258 wrote:

In my application I show a list of all the printers installed. I get the list of priters with EnumPrinters() function and level 2. However I am interested only in fetching a list of physical printers and not the Virtual Priters like "Microsoft Office Document Image Writer" and "Adobe PDF".

How does one distinguish a physical printer from a virtual printer?

Rajesh R Subramanian wrote:

OK, I've been away for a while

CString str;
m_Combo.GetLBText(m_Combo.GetCurSel(), str);
AfxMessageBox(str);