圆角窗口的实现

 

void UiMainFrm::OnSize(UINT nType, int cx, int cy)
{
　　CWnd::OnSize(nType, cx, cy);


　　CRgn rgn;
　　CRect rcRgn;
　　GetWindowRect(&rcRgn);
　　rcRgn -=rcRgn.TopLeft();
　　CPoint points[8] = {CPoint(rcRgn.left, m_nBorderWidth), CPoint(m_nBorderWidth, rcRgn.top),
　　CPoint(rcRgn.right-m_nBorderWidth, rcRgn.top), CPoint(rcRgn.right, m_nBorderWidth),
　　CPoint(rcRgn.right, rcRgn.bottom-m_nBorderWidth-1), CPoint(rcRgn.right-m_nBorderWidth-1, rcRgn.bottom),
　　CPoint(m_nBorderWidth+1, rcRgn.bottom), CPoint(rcRgn.left, rcRgn.bottom-m_nBorderWidth-1)};
　　int nPolyCounts[1] = {8};
　　int nRet = rgn.CreatePolyPolygonRgn(points, nPolyCounts, 1, WINDING);
　　//int nRet = rgn.CreateRoundRectRgn( re.left, re.top,re.right+1,re.bottom+1,5 ,5);
　　SetWindowRgn( rgn, TRUE );
　　DeleteObject(rgn);
}