【C#】获得所有可见窗口信息

【背景】

由于自己的瘦客户端上的Windows自带截图软件功能被阉割，所以自己写了一个，其中有窗口截图功能，涉及到获得所有可见窗口的信息。

【代码】

public WindowInfo[] GetAllDesktopWindows()
        {
            //用来保存窗口对象 列表
            List<WindowInfo> wndList = new List<WindowInfo>();

            //enum all desktop windows 
            EnumWindows(delegate (IntPtr hWnd, int lParam)
            {
                WindowInfo wnd = new WindowInfo();
                StringBuilder sb = new StringBuilder(256);
                Rect rcowner = new Rect();


                //get hwnd 
                wnd.hWnd = hWnd;


               
                //judge if visible
                if (IsWindowVisible(hWnd) )
                {
                    //get window rect
                    GetWindowRect(hWnd, ref rcowner);
                    wnd.rc = rcowner;
                    if ((rcowner.Left - rcowner.Right) != 0 && (rcowner.Top - rcowner.Bottom) != 0)
                    {
                        //get window name  
                        GetWindowTextW(hWnd, sb, sb.Capacity);
                        wnd.szWindowName = sb.ToString();

                        //get window class 
                        GetClassNameW(hWnd, sb, sb.Capacity);
                        wnd.szClassName = sb.ToString();

                        //get window info
                        uint x=0;
                        GetWindow(hWnd, x);

                        //add it into list 
                        wndList.Add(wnd);
                    }
                }
                return true;
            }, 0);

            return wndList.ToArray();
        }