Display JPEG pics in reportcontrol preview mode

Hi there;

I don't know what you mean with "preview mode".
Drawing a JPEG in a report cell is not a big problem. Look at the CJ example "ReportControl.CustomDrawReport". In this example you see, how to custom draw a cell.

Then you create your own CXTPCustomDrawReportPaintManager and override GetRowHeight to return your desired row (picture) height.

To draw the bitmap, you create your own CXTPReportRecordItem (CReportRecordItemBitmap here) and override OnDrawCaption, do something (simplyfied) like this:

void CReportRecordItemBitmap::OnDrawCaption(XTP_REPORTRECORDITEM_DRAWARGS* pDrawArgs, XTP_REPORTRECORDITEM_METRICS* pMetrics)
{
  if (!(pDrawArgs && pMetrics))
    return;

  // draw bitmap
  CDC memDC;
  memDC.CreateCompatibleDC(pDrawArgs->pDC);
  CBitmap *pOldbmp = memDC.SelectObject(&m_bitmap);
  if (!m_bitmap.m_hObject) {
    return;
  }

  BITMAP bi;
  m_bitmap.GetBitmap(&bi);

  // ... calculate image size here

  pDrawArgs->pDC->SetStretchBltMode(COLORONCOLOR);
  pDrawArgs->pDC->StretchBlt(... , &memDC, 0, 0, ..., ..., SRCCOPY);
  memDC.SelectObject(pOldbmp);
}

That's it.