Process.MainWindowHandle抛出的奇怪异常

Question

  InternetExplorer ie = null;
                Process pro = Process.Start("iexplore.exe", url);

                System.Threading.Thread.Sleep(10000);

                if (pro == null)
                {
                    MessageBox.Show("Start IE failed, please check the IE setting on your machine!");
                    return null;
                }
                MessageBox.Show("Debug");
                MessageBox.Show(pro.Handle.ToString());
               // MessageBox.Show(pro.MainWindowHandle.ToString());

                SHDocVw.ShellWindows allBrowsers = new ShellWindows();
                MessageBox.Show(allBrowsers.Count.ToString());

                if (allBrowsers.Count == 0)
                {
                    throw new Exception("Could not found the IE");
                }

                for (int index = 0; index < allBrowsers.Count && ie == null; index++)
                {
                    MessageBox.Show("Debug 2");

                    InternetExplorer temp = (InternetExplorer)allBrowsers.Item(index);
                    if(temp.HWND.ToString() == pro.MainWindowHandle.ToString())
                    {
                        ie = temp;
                    }
                }

我在网上找了些答案，但是都没有解决掉，有另外一帖子说，可以直接用

”你引用　　ａｃｔｉｖｅｘ　ｄｌｌ（ｃｏｍ）　　　system32/SHDocVw.dll

SHDocVw.InternetExplorerClass ie = new SHDocVw.InternetExplorerClass();

ie.Visible = true；

但是我的程序上显示它没有构造函数。

请帮帮我。谢谢。

Answer 1

IE进程不一定有主窗口的……根据目标url的保护模式设置和目前IE窗口的IL而定。

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Answer 2

您好

假如您要使用 SHDocVw，請添加參考 Microsoft HTML Object Library 與 Microsoft Internet Controls，參考以下文章

[C#]透過 SHDocVw 將 Internet Explorer 轉址

http://www.dotblogs.com.tw/chou/archive/2010/05/31/15515.aspx

[C#]透過 SHDocVw 與 GetForegroundWindow 取得正在使用的 Internet Explorer 網址

http://www.dotblogs.com.tw/chou/archive/2010/01/11/12953.aspx

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Answer 3

Thanks for you guys, I have found how to fix the isses seems that this issues is only repro on Win7. Now I can do it like this:

 SHDocVw.ShellWindows allBrowsers = new ShellWindows();

                    foreach (InternetExplorer browser in allBrowsers)
                    {
                        string processName = Path.GetFileNameWithoutExtension(browser.FullName).ToLower();

                        if (processName.Equals("iexplore"))
                        {
                            if (browser.HWND == (int)pro.MainWindowHandle)
                            {
                                ie = browser;
                            }
                        }
                    }

In this case, it works well for alll brower here should have a hwnd for we are ensure that's an IE window.

Thanks for you guys help. I would like to close this thread at this moment.

Edison