ID--HANDLE--HWND三者之间的互相转换
id->句柄 hWnd = ::GetDlgItem(hParentWnd,id);
id->指针 CWnd::GetDlgItem();
句柄->id id = GetWindowLong(hWnd,GWL_ID);
句柄->指针 CWnd *pWnd=CWnd::FromHandle(hWnd);
指针->ID id = GetWindowLong(pWnd->GetSafeHwnd,GWL_ID);
指针->句柄 hWnd=cWnd.GetSafeHandle() or mywnd->m_hWnd;
id->句柄 hWnd = ::GetDlgItem(hParentWnd,id);
id->指针 CWnd::GetDlgItem();
句柄->id id = GetWindowLong(hWnd,GWL_ID);
句柄->指针 CWnd *pWnd=CWnd::FromHandle(hWnd);
指针->ID id = GetWindowLong(pWnd->GetSafeHwnd,GWL_ID);
指针->句柄 hWnd=cWnd.GetSafeHandle() or mywnd->m_hWnd;