窗口ID，句柄，指针三者相互转换函数

//窗口ID，句柄，指针三者相互转换函数 //ID--HANDLE--HWND三者之间的互相转换 long id; CWnd *pWnd; HWND 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;