void CDuiWkeWebkit::OnPaint( CDCHandle dc )
{
CRect rcClip;
dc.GetClipBox(&rcClip);
CRect rcClient;
GetClient(&rcClient);
CRect rcInvalid;
rcInvalid.IntersectRect(&rcClip,&rcClient);
m_pWebView->paint(dc,rcInvalid.left,rcInvalid.top,rcInvalid.Width(),rcInvalid.Height(),rcInvalid.left-rcClient.left,rcInvalid.top-rcClient.top,true);
}