MFC圆角背景移动边角底色毛刺解决方案

 1 　　 CRect rc;
 2     Graphics graphics(pDC->m_hDC);
 3     GetClientRect(&rc);
 4     CRgn m_rgn;
 5 
 6     if (m_pBgImage)
 7     {           
 8         graphics.DrawImage(m_pBgImage, 0, 0, rc.Width(), rc.Height());   //贴背景
 9     }
10     if(!m_rgn.m_hObject)
11     {
12         m_rgn.CreateRoundRectRgn((-rc.left) - 1,-rc.top,rc.right - rc.left + 2,rc.bottom - rc.top + 2,15,15);
13         SetWindowRgn(m_rgn,TRUE);
14     }