ShellWindows
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ShellWindows 用法及相关
1/如何使用ShellExecute在新的窗口中打开新的网站
打开VB菜单的 Project|References 项,在References对话框中有一个Microsoft Internet Control项,选中它,然后在Form1中加入一个CommandButton,在Form1中加入一下代码:
'Dim dWinFolder As ShellLinkObject
Dim dWinFolder As ShellWindows
Private Sub Command1_Click()
bBrowser = False
If dWinFolder.Count = 0 Then
'没有打开的浏览器窗口,执行常规的ShellExecute 打开网页
Else
dWinFolder.Item(0).Navigate "file:///c:/windows/temp/a.htm", navOpenInNewWindow, _
"_blank", 0, 0
End If
End Sub
Private Sub Form_Load()
Set dWinFolder = New ShellWindows
End Sub
Private Sub Form_Unload(Cancel As Integer)
Set dWinFolder = Nothing
End Sub
运行程序,就可以在新窗口中打开了。ShellWindows对象是Windows下运行的所有外壳浏览器的集合。
2/如何在打开IE的时候自动启动其他程序,在关闭IE的时候一同关闭
1、工程中引用 Microsoft Internet Controls
2、在Form1中添加一个ListBox控件
3、在Form1中添加如下代码:
Dim WithEvents dWinFolder As ShellWindows
Dim objIE As Object
Private Sub dWinFolder_WindowRegistered(ByVal lCookie As Long)
On Error Resume Next
For Each objIE In dWinFolder
List1.AddItem objIE.Document.Title
Next
End Sub
Private Sub dWinFolder_WindowRevoked(ByVal lCookie As Long)
If dWinFolder.Count = 0 Then End
End Sub
Private Sub Form_Load()
Set dWinFolder = New ShellWindows
End Sub
在一个IE窗口创建时会引发 dWinFolder_WindowRegistered事件,在关闭一个窗口时会引发dWinFolder_WindowRevoked事件
3/用VB自动关闭网页广告窗口
网页广告分析:
1.弹出的广告窗口
网页中弹出的广告窗口都是用JS或VBS编写的脚本程序,每个广告窗口都有自已的URL地址,只要获取所有的IE窗口的URL地址,再把其中的广告窗口的URL地址记录下来保存到文本文件中,并且关闭这个窗口,就达到了自动关闭广告的目的。
2.Flash广告窗口
有些广告是FLASH动画,只要获得窗口句柄,关闭类名为“MacromediaFlashPlayerActiveX”的FLASH播放控件,就可以关闭这些FLASH广告了。
编程原理:通过设置定时器定时搜索,根据IE的程序名判断是否有IE窗口打开,如发现再进一步判断打开的IE的URL的地址是否与记录在列表框中的一致,如相同就关闭它。由于不涉及窗口的类名,无论是IE的各个版本都可以使用。至于网页中的FLASH则是通过“FindWindowEx”函数来一层层的查找打开网页窗口的“MacromediaFlashPlayerActiveX”类名(IE窗口的各个类名是通过工具软件“SPY++”可以获得),并返回窗口句柄,再用“SendMessage”消息函数发送消息关Flash广告窗口。
程序设计:
新建一个工程,添加一个窗体和控件。
1.建立一个用来控制图标在系统托盘的模块“Module1”,相关代码见后文下载地址。
2.程序主窗口的部分代码如下:
Private Sub cmdRightOne_Click()'向黑名单列表中添加网址,cmdLeftOne的代码与此雷同,详见程序源代码
On Error Resume Next
Dim i As Integer
If lstAll.ListCount = 0 Then Exit Sub
If lstAll.Text = "" Then Exit Sub
lstSelected.AddItem lstAll.Text
i = lstAll.ListIndex
lstAll.RemoveItem lstAll.ListIndex
If lstAll.ListCount > 0 Then
If i > lstAll.ListCount - 1 Then
lstAll.ListIndex = i - 1
Else
lstAll.ListIndex = i
End If
End If
lstSelected.ListIndex = lstSelected.NewIndex
End Sub
Private Sub closeflash()'关闭flash动画
On Error GoTo callerrora
Dim sclassname As String
Dim windowhandle As Long
Dim lhwnd As Long
Dim a As Long
lhwnd = 0
sclassname = ("IEFrame")
lhwnd = FindWindowEx(lhwnd, 0, sclassname, vbNullString)
sclassname = ("Shell DocObject View")
lhwnd = FindWindowEx(lhwnd, 0, sclassname, vbNullString)
sclassname = ("Internet Explorer_server")
lhwnd = FindWindowEx(lhwnd, 0, sclassname, vbNullString)
sclassname = ("MacromediaFlashPlayerActiveX")
lhwnd = FindWindowEx(lhwnd, 0, sclassname, vbNullString)
windowhandle = lhwnd
If windowhandle <> 0 Then
a = SendMessage(windowhandle, WM_CLOSE, 0, 0)
End If
Exit Sub
callerrora:
MsgBox Err.Description
Err.Clear
End Sub
Private Sub filter()'过滤黑名单中的广告链接
Dim objIE As Object
Dim i As Integer
On Error Resume Next
For Each objIE In dWinFolder '遍历所有IE浏览器窗口
If InStr(1, objIE.FullName, "IEXPLORE.EXE", vbTextCompare) <> 0 Then
For i = 1 To lstSelected.ListCount - 1
If objIE.LocationURL = Trim(lstSelected.List(i)) Then
objIE.Quit
Exit For
End If
Next i
End If
Next
objIE = Nothing
End Sub
代码输入完毕,按F5运行一下吧(如图)!然后在IE中打开一个含有多个广告窗口的网页看一下效果如何,只要单击托盘图标调出程序,按“刷新”按钮就会在左边栏中列出所有的URL地址,把广告窗口的URL地址添加到右边的黑名单中,“确定”后以后就会自动关闭这个广告窗口了。如果想浏览它,再把它从黑名单中删除即可。也可以在托盘图标的右键菜单中,控制功能的开/关。
4/怎样编程得到当前Web窗口文本信息
Dim dWinFolder As New ShellWindows
Dim WithEvents eventIE As WebBrowser_V1
Private Sub Command1_Click()
Dim objIE As Object
For Each objIE In dWinFolder
If objIE.LocationURL = List1.List(List1.ListIndex) Then
Set eventIE = objIE
Command1.Enabled = False
List1.Enabled = False
Text1.Text = ""
Exit For
End If
Next
End Sub
Private Sub eventIE_NavigateComplete(ByVal URL As String)
Text1.Text = Text1.Text + Chr(13) + Chr(10) + URL
End Sub
在运行前。点击菜单 Projects | References 项,在Available References 列表中选择Microsoft Internet Controls项将Internet对象引用介入到工程中
Private Sub Form_Load()
Dim objIE As Object
For Each objIE In dWinFolder
If InStr(1, objIE.FullName, "IEXPLORE.EXE", vbTextCompare) <> 0 Then
List1.AddItem objIE.LocationURL
End If
Next
Command1.Caption = "正文"
End Sub
Private Sub Form_Unload(Cancel As Integer)
Set dWinFolder = Nothing
End Sub
Private Sub List1_Click()
Dim objDoc As Object
Dim objIE As Object
For Each objIE In dWinFolder
If objIE.LocationURL = List1.List(List1.ListIndex) Then
Set objDoc = objIE.Document
For i = 1 To objDoc.All.length - 1
If objDoc.All(i).tagname = "BODY" Then
Text1.Text = objDoc.All(i).innerText
End If
Next
Exit For
End If
Next
End Sub