怎么屏蔽掉系统菜单的关闭按钮？？（该变其关闭的功能为最小化)

Question

拦截WM_SYSCOMMAND消息若wParam＝SC_CLOSE
则转换为SC_MINIMIZE或SC_ICON都可以

Answer 1

CYourDlg::OnClose()
{
  this->ShowWindow(SW_MINIMIZED);
}

Answer 2

BEGIN_MESSAGE_MAP(CChildFrame, CMDIChildWnd)
//{{AFX_MSG_MAP(CChildFrame)
.....................................
ON_WM_SYSCOMMAND()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()void CChildFrame::OnSysCommand(UINT nID, LPARAM lParam) 
{
if (nID==SC_CLOSE)
{
...............
}

CMDIChildWnd::OnSysCommand(nID, lParam);
}