绘制圆角对话框的边框

void CDlg::InitUI()

{

CRect rect, rectTemp, rectItem;

CRgn rgnTemp;

GetClientRect(rect);

m_rgn.CreateRoundRectRgn(0, 0,rect.Width(),rect.Height(), 20, 20);

m_rgnFrame.CreateRoundRectRgn(0, 0,rect.Width(),rect.Height(), 20, 20);

rgnTemp.CreateRoundRectRgn(1, 1,rect.Width() - 1,rect.Height() - 1, 20, 20);

m_rgnFrame.CombineRgn(&m_rgn, &rgnTemp, RGN_XOR);

rgnTemp.DeleteObject();

::SetWindowRgn(GetSafeHwnd(),(HRGN)m_rgn, TRUE);

}

 

 

.....

protected:

virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

virtual BOOL OnInitDialog();

virtual LRESULT DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam);

 

......

 

 

 

 

 

 

 

 

 

LRESULT CDlg::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) 

{

LRESULT lrst=CDialog::DefWindowProc(message, wParam, lParam);

 

if (!::IsWindow(m_hWnd))

return lrst;

 

if (message==WM_MOVE||message==WM_PAINT||message==WM_NCPAINT||message==WM_NCACTIVATE ||message == WM_NOTIFY)

{

CDC* pWinDC = GetWindowDC();

if (pWinDC)

{

CBrush brush;

brush.CreateSolidBrush(RGB(0, 0, 0));

pWinDC->FillRgn(&m_rgnFrame, &brush);

ReleaseDC(pWinDC);

}

}

return lrst;

}