问从.Net WinForms应用程序以编程方式刷新浏览器的页面

EN

using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        // Get a handle to an application window.
        [DllImport("USER32.DLL", CharSet = CharSet.Unicode)]
        public static extern IntPtr FindWindow(string lpClassName,
            string lpWindowName);

        // Activate an application window.
        [DllImport("USER32.DLL")]
        public static extern bool SetForegroundWindow(IntPtr hWnd);


        private void RefreshExplorer()
        {
            //You may want to receive the window caption as a parameter... 
            //hard-coded for now.
            // Get a handle to the current instance of IE based on window title. 
            // Using Google as an example - Window caption when one navigates to google.com 
            IntPtr explorerHandle = FindWindow("IEFrame", "Google - Windows Internet Explorer");

            // Verify that we found the Window.
            if (explorerHandle == IntPtr.Zero)
            {
                MessageBox.Show("Didn't find an instance of IE");
                return;
            }

            SetForegroundWindow(explorerHandle );
            //Refresh the page
            SendKeys.Send("{F5}"); //The page will refresh.
        }
    }
}