急！如何改变RichEditCtrl中的某一行的背景色？——在线等待

Question

急！

Answer 1

//可以为CRichEditCtrl中的某一部分指定显示设备
//以下摘自MSDN
// The pointer to my rich edit control.
extern CRichEditCtrl* pmyRichEditCtrl;
// A pointer to a printer DC.
extern CDC* pMyPrinterDC;FORMATRANGE fr;// Get the page width and height from the printer.
long lPageWidth = ::MulDiv(pMyPrinterDC->GetDeviceCaps(PHYSICALWIDTH),
    1440, pMyPrinterDC->GetDeviceCaps(LOGPIXELSX));
long lPageHeight = ::MulDiv(pMyPrinterDC->GetDeviceCaps(PHYSICALHEIGHT),
    1440, pMyPrinterDC->GetDeviceCaps(LOGPIXELSY));
CRect rcPage(0, 0, lPageWidth, lPageHeight);// Format the text and render it to the printer.
fr.hdc = pMyPrinterDC->m_hDC;
fr.hdcTarget = pMyPrinterDC->m_hDC;
fr.rc = rcPage;
fr.rcPage = rcPage;
fr.chrg.cpMin = 0;
fr.chrg.cpMax = -1;
pmyRichEditCtrl->FormatRange(&fr, TRUE);// Update the display with the new formatting.
RECT rcClient;
pmyRichEditCtrl->GetClientRect(&rcClient);
pmyRichEditCtrl->DisplayBand(&rcClient);