Re: print/print preview paging.

From:

=?Utf-8?B?eWJj?= <ybc@discussions.microsoft.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 19 Jul 2006 16:56:01 -0700

Message-ID:

<86BE7ECE-573F-4977-8542-16C732A0EF9E@microsoft.com>

I TRACE the pInfo->m_nCurPage. When I click 'Next Page' in Print Preview,
pInfo->m_nCurPage is 1,2,3,...13. It's correct. But it only display the first
page. The code is as the following:

void CArclabsView::OnInitialUpdate()
{
    CScrollView::OnInitialUpdate();
    CSize sizeTotal (4000, 100000);
    CSize sizePage (sizeTotal.cx/2, sizeTotal.cy/10);
    CSize sizeLine (sizeTotal.cx/2, sizeTotal.cy/100);
    SetScrollSizes(MM_TEXT, sizeTotal, sizePage, sizeLine);
}
void CArclabsView::OnPrint(CDC* pDC, CPrintInfo* pInfo)
{
    int i, nStart, nEnd, nPage;
    CArclabsDoc* pDoc = GetDocument();
    nPage = pInfo->m_nCurPage ;
    nStart = (nPage -1) * CArclabsDoc::nLinesPerPage;
    nEnd = nStart + CArclabsDoc::nLinesPerPage;
    for (i = nStart; i < nEnd; i++)
    {
        if (i > pDoc->m_stringArray.GetUpperBound ())
            break;
TRACE("%s\n",pDoc->m_stringArray[i]);
        pDC->TextOut (20, i * 100, pDoc->m_stringArray[i]);
    }
    //CScrollView::OnPrint(pDC, pInfo);
}

The output of TRACE for the string array is correct, but no output in Print
Preview.