Just wondering...I have a SDI application where I load a lot of data into a buffer in OnBeginPrinting(). Since it can take a while to preload the data I implemented a progress meter from CProgressDlg. If the user clicks the Cancel button on the progress dialog, all the memory is cleaned up that had been used. The only other thing that I want to do is with OnBeginPrinting() exit the printing cycle altogether. The code below calls LoadSummaryData() that returns false is the Cancel button was hit.

void CPavementView::OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo)
{
if (!LoadSummaryData())
return;

CFormView::OnBeginPrinting(pDC, pInfo);
}