mfc自绘相关

HBRUSH CXXXXDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

if(nCtlColor == CTLCOLOR_BTN || nCtlColor == CTLCOLOR_STATIC)
{
pDC->SetTextColor(RGB(10,155,255));
pDC->SetBkMode(TRANSPARENT);
return (HBRUSH)m_HollowBrush;
}

pDC->SetTextColor(RGB(0,0,255));
pDC->SetBkMode(TRANSPARENT);
return hbr;

}

BOOL CXXXXDlg::OnEraseBkgnd(CDC* pDC) 
{
CRect rcClient;
GetClientRect(&rcClient);
BITMAP bm;
m_BkGndBmp.GetBitmap(&bm);
CDC memDC;
memDC.CreateCompatibleDC(pDC);
CBitmap *pOldBmp = memDC.SelectObject(&m_BkGndBmp);
pDC->StretchBlt(0,0,rcClient.Width(),rcClient.Height(),&memDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);
memDC.SelectObject(pOldBmp);
memDC.DeleteDC();
return TRUE;
//return CDialog::OnEraseBkgnd(pDC);
}