vb.net 教程 20-3 控制Ie浏览器 5

四、获得Ie窗口 Internet Explorer_Server 句柄

IEFrame->Frame Tab->TabWindowClass->shell DocObject View->Internet Explorer_Server

上一小节获得了 Frame Tab 的句柄，本节继续获得 Internet Explorer_Server 句柄

需要注意的是，从Frame Tab之后，从TabWindowClass 到 Internet Explorer_Server 获得的都是单个的句柄。

具体代码如下：

    ''' <summary>    ''' 获得IE的Internet Explorer_Server    ''' </summary>    ''' <returns></returns>    ''' <remarks></remarks>    Private Function getIEServer() As ArrayList        Dim IEServerArray As New ArrayList        Dim IEServerHwnd As IEWindowHwnd        '获得所有的FrameTab句柄        Dim IEFrameTabHwndArray As New ArrayList        IEFrameTabHwndArray = getIEFrameTab()        '如果FrameTab数量为0，那么就立即返回空IEServerArray        If IEFrameTabHwndArray.Count = 0 Then Return IEServerArray        '循环FrameTab最终获得Internet Explorer_Server 句柄        For i As Integer = 0 To IEFrameTabHwndArray.Count - 1            Try                'TabWindowClass                Dim TWCHwnd As Integer                TWCHwnd = FindWindowEx(CType(IEFrameTabHwndArray(i), IEWindowHwnd).FTabhwnd, 0, "TabWindowClass", Nothing)                If TWCHwnd = 0 Then                    Continue For                End If                'shell DocObject View                Dim SDVHwnd As Integer                SDVHwnd = FindWindowEx(TWCHwnd, 0, "shell DocObject View", Nothing)                If SDVHwnd = 0 Then                    Continue For                End If                'Internet Explorer_Server                Dim IESHwnd As Integer                IESHwnd = FindWindowEx(SDVHwnd, 0, "Internet Explorer_Server", Nothing)                If IESHwnd <> 0 Then                    '记录IE窗口的Hwnd,一直传递下去                    IEServerHwnd.IEhwnd = CType(IEFrameTabHwndArray(i), IEWindowHwnd).IEhwnd                    '记录Internet Explorer_Server窗口的Hwnd                    IEServerHwnd.Ie_SHwnd = IESHwnd                    IEServerHwnd.FTabhwnd = CType(IEFrameTabHwndArray(i), IEWindowHwnd).FTabhwnd                    IEServerArray.Add(IEServerHwnd)                End If            Catch ex As Exception                Continue For            End Try        Next        Return IEServerArray    End Function

测试代码如下：

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click        ListBox1.Items.Clear()        Dim listIe As New ArrayList        listIe = getIEServer()        If listIe.Count > 0 Then            For i As Integer = 0 To listIe.Count - 1                ListBox1.Items.Add(CType(listIe.Item(i), IEWindowHwnd).Ie_SHwnd)            Next        End If    End Sub

运行结果如下：

3

注意：spy++中是用十六进制显示的。

由于.net平台下C#和vb.NET很相似，本文也可以为C#爱好者提供参考。

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