获取Internet Explorer的分页标题 [英] Get Internet Explorer tab title

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本文介绍了获取Internet Explorer的分页标题的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我试图让所有打开的IE选项卡标题的列表或搜索特定的标签标题。



我一直用这个,但不起作用对于因某些原因每个标签:

  //得到一个处理一个应用程序窗口。 
函数[DllImport(USER32.DLL,字符集= CharSet.Unicode)]
公共静态外部的IntPtr FindWindow函数(字符串lpClassName,
串lpWindowName);

IntPtr的explorerHandle = FindWindow函数(IEFrame,谷歌 - Internet Explorer的);

//验证,我们发现窗口。
如果(explorerHandle == IntPtr.Zero)
{
MessageBox.Show(没有找到IE的实例);
的回报;
}



我特别寻找具有标签无法显示此页面的称号。



有什么建议?


解决方案

最后一次,我需要做类似的东西我用这个代码:(它的工作!)

 函数[DllImport(user32.dll中 )
[返回:的MarshalAs(UnmanagedType.Bool)
公共静态的extern BOOL EnumChildWindows(IntPtr的parentHandle,Win32Callback回调,IntPtr的lParam的);

函数[DllImport(user32.dll中,字符集= CharSet.Auto)]
静态公共EXTERN的IntPtr GetClassName(IntPtr的的HWND,System.Text.StringBuilder lpClassName,诠释nMaxCount);

函数[DllImport(USER32.DLL,字符集= CharSet.Unicode)]
公共静态外部的IntPtr FindWindow函数(字符串lpClassName,
串lpWindowName);

公共委托布尔Win32Callback(IntPtr的HWND,IntPtr的lParam的);
私人静态布尔EnumWindow(IntPtr的手柄,IntPtr的指针)
{
的GCHandle GCH = GCHandle.FromIntPtr(指针);
名单,LT; IntPtr的>清单= gch.Target的名单,LT; IntPtr的取代;
如果(名单== NULL)
抛出新InvalidCastException的(目标的GCHandle无法转换为表< IntPtr的>);
list.Add(句柄);
返回真;
}
公共静态列表< IntPtr的> GetChildWindows(IntPtr的父母)
{
名单,LT; IntPtr的>结果=新的List< IntPtr的>();
的GCHandle listHandle = GCHandle.Alloc(结果);

{
Win32Callback childProc =新Win32Callback(EnumWindow);
EnumChildWindows(父母,childProc,GCHandle.ToIntPtr(listHandle));
}
终于
{
如果(listHandle.IsAllocated)
listHandle.Free();
}
返回结果;
}
公共静态字符串GetWinClass(IntPtr的HWND)
{
如果(HWND == IntPtr.Zero)
返回NULL;
类名的StringBuilder =新的StringBuilder(100);
IntPtr的结果= GetClassName(HWND,类名,classname.Capacity);
如果(结果= IntPtr.Zero!)
返回classname.ToString();
返回NULL;
}
公共静态的IEnumerable< IntPtr的> EnumAllWindows(IntPtr的HWND,字符串childClassName)
{
名单,LT; IntPtr的>孩子= GetChildWindows(HWND);
如果(孩子== NULL)
产量突破;
的foreach(IntPtr的孩子的孩子)
{
如果(GetWinClass(子)== childClassName)
收益回报的孩子;
的foreach(在EnumAllWindows VAR childchild(儿童,childClassName))
收益率的回报childchild;
}
}

和使用它:

  IntPtr的处理= FindWindow函数(IEFrame,谷歌); 
VAR hwndChilds = EnumAllWindows(手柄,帧标签);



hwndChilds 是的IntPtr的所有列表
我完成我的答案有:帧标签



修改的接下来的步骤,让您的标签的标题。

 函数[DllImport(user32.dll中,字符集= CharSet.Auto) ] 
静态外部的IntPtr SendMessage函数(IntPtr的的HWND,UInt32的消息,IntPtr的wParam中,[出]的StringBuilder的lParam);

函数[DllImport(user32.dll中,ExactSpelling = TRUE,字符集= CharSet.Auto)]
公共静态外部的IntPtr的getParent(IntPtr的的hWnd);


公共静态字符串GetWindowTextRaw(IntPtr的HWND)
{
UINT WM_GETTEXT = 0x000D;
UINT WM_GETTEXTLENGTH = 0x000E;
//分配正确的字符串长度的第一
INT长度=(int)的SendMessage函数(HWND,WM_GETTEXTLENGTH,IntPtr.Zero,NULL);
StringBuilder的SB =新的StringBuilder(长+ 1);
的SendMessage(HWND,WM_GETTEXT,(IntPtr的)sb.Capacity,SB);
返回sb.ToString();
}

您可以测试它:

 静态无效的主要(字串[] args)
{
IntPtr的处理= FindWindow函数(IEFrame,谷歌);
VAR hwndChild = EnumAllWindows(手柄,帧标签);
的foreach(在hwndChild VAR的IntPtr)
{
VAR PTR =的getParent(IntPtr的);
变种文字= GetWindowTextRaw(PTR);
Console.WriteLine(文本);
}
到Console.ReadLine();
}

和结果:



这里如果你需要更多的解释不要犹豫,请输入图像描述




你可以找到 http://www.pinvoke.net/

有一个伟大的一天!


I am trying to get a list of all the open IE tab titles or search for a specific tab title.

I've been using this but does not work for every tab for some reason:

// Get a handle to an application window.
    [DllImport("USER32.DLL", CharSet = CharSet.Unicode)]
    public static extern IntPtr FindWindow(string lpClassName,
        string lpWindowName);

IntPtr explorerHandle = FindWindow("IEFrame", "Google - Internet Explorer");

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

I am particularly looking for tabs which have "This page can’t be displayed" in the title.

Any suggestions?

解决方案

The last time I needed to do something like that I used this code: (It's working !)

    [DllImport("user32.Dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool EnumChildWindows(IntPtr parentHandle, Win32Callback callback, IntPtr lParam);

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static public extern IntPtr GetClassName(IntPtr hWnd, System.Text.StringBuilder lpClassName, int nMaxCount);

    [DllImport("USER32.DLL", CharSet = CharSet.Unicode)]
    public static extern IntPtr FindWindow(string lpClassName,
      string lpWindowName);

    public delegate bool Win32Callback(IntPtr hwnd, IntPtr lParam);
    private static bool EnumWindow(IntPtr handle, IntPtr pointer)
    {
        GCHandle gch = GCHandle.FromIntPtr(pointer);
        List<IntPtr> list = gch.Target as List<IntPtr>;
        if (list == null)
            throw new InvalidCastException("GCHandle Target could not be cast as List<IntPtr>");
        list.Add(handle);
        return true;
    }
    public static List<IntPtr> GetChildWindows(IntPtr parent)
    {
        List<IntPtr> result = new List<IntPtr>();
        GCHandle listHandle = GCHandle.Alloc(result);
        try
        {
            Win32Callback childProc = new Win32Callback(EnumWindow);
            EnumChildWindows(parent, childProc, GCHandle.ToIntPtr(listHandle));
        }
        finally
        {
            if (listHandle.IsAllocated)
                listHandle.Free();
        }
        return result;
    }
    public static string GetWinClass(IntPtr hwnd)
    {
        if (hwnd == IntPtr.Zero)
            return null;
        StringBuilder classname = new StringBuilder(100);
        IntPtr result = GetClassName(hwnd, classname, classname.Capacity);
        if (result != IntPtr.Zero)
            return classname.ToString();
        return null;
    }
    public static IEnumerable<IntPtr> EnumAllWindows(IntPtr hwnd, string childClassName)
    {
        List<IntPtr> children = GetChildWindows(hwnd);
        if (children == null)
            yield break;
        foreach (IntPtr child in children)
        {
            if (GetWinClass(child) == childClassName)
                yield return child;
            foreach (var childchild in EnumAllWindows(child, childClassName))
                yield return childchild;
        }
    }

And to use it :

  IntPtr handle = FindWindow("IEFrame", "Google");
  var hwndChilds = EnumAllWindows(handle, "Frame Tab");

hwndChilds is a list of IntPtr to all of Frame Tab.

EDIT : I complete my answer with the next steps to get the title of your tabs.

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, [Out] StringBuilder lParam);

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


    public static string GetWindowTextRaw(IntPtr hwnd)
        {
            uint WM_GETTEXT = 0x000D;
            uint WM_GETTEXTLENGTH = 0x000E;
            // Allocate correct string length first
            int length = (int)SendMessage(hwnd, WM_GETTEXTLENGTH, IntPtr.Zero, null);
            StringBuilder sb = new StringBuilder(length + 1);
            SendMessage(hwnd, WM_GETTEXT, (IntPtr)sb.Capacity, sb);
            return sb.ToString();
        }

You can test it with :

  static void Main(string[] args)
  {
        IntPtr handle = FindWindow("IEFrame", "Google");
        var hwndChild = EnumAllWindows(handle, "Frame Tab");
        foreach (var intPtr in hwndChild)
        {
            var ptr = GetParent(intPtr);
            var text = GetWindowTextRaw(ptr);
            Console.WriteLine(text);
        }
        Console.ReadLine();        
  }

and the result :

If you need more explanations don't hesitate to ask. You can find all pInvoke signatures on http://www.pinvoke.net/

Have a great day !

这篇关于获取Internet Explorer的分页标题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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