C # access to the Web page of the handle

You need to call the Windows API function

[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
public static extern IntPtr GetForegroundWindow();

Hwnd is the function returns a handle to the page. Use this handle can get the page attribute information, operation page.

1. Get page attribute information

[StructLayout(LayoutKind.Sequential)]
public struct RECT
{

　　public  int Left; // leftmost coordinate 
　　public  int Top; // uppermost coordinate 
　　public  int Right; // rightmost coordinate 
　　public  int Bottom; // lowermost coordinate 
}

[DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)]
static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);

2. Operation page

[The DllImport ( " User32.dll " , the CharSet = CharSet.Auto, ExactSpelling = to true )]
 public  static  extern  int the ShowWindow (IntPtr HWND, int the nCmdShow);　// the nCmdShow: 1 0 Close normal size minimized window display window 2 3 maximized window