CWnd?* pwnd = GetDlgItem(IDC _ group box);//繪圖區域
疾控中心?* PDC = pwnd-& gt;GetDC();
pDC->;SetTextColor(RGB(255,0,0));
pDC->;SetBkColor(RGB(255,255,255));
cbr。create solid brush(bGColor);
hbr?=?(HBRUSH)cbr。GetSafeHandle();
pDC->;SetBkMode(透明);
release DC(PDC);