webbrowser 技巧2　（收藏）

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取得网页中特定的链接
Private Sub Command1_Click()
    WebBrowser1.Navigate "http://www.95557.com/svote.htm"
End Sub

Private Sub WebBrowser1_NavigateComplete2(ByVal pDisp As Object, URL As Variant)
    Dim a
   
    For Each a In WebBrowser1.Document.All
        If a.tagname = "A" Then
            If a.href = "http://tech.sina.com.cn/mobile/capture.shtml" Then
                a.Click
            End If
        End If
    Next
End Sub

Option Explicit
Private m_bDone As Boolean

Private Sub Command1_Click()
    If m_bDone Then
        Dim doc As IHTMLDocument2
        Set doc = WebBrowser1.Document
        Dim aLink As HTMLLinkElement
        Set aLink = doc.links(0)
        aLink.Click
    End If
End Sub

Private Sub Form_Load()
    WebBrowser1.Navigate "http://www.95557.com/svote.htm"
End Sub

Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)
    m_bDone = True
End Sub

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The following code can be used to query and delete files in the internet cache (including cookies). A demonstration routine can be found at the bottom of this post. Note, the enumerated type eCacheType is not supported in Excel 97, but can be changed to a list of Public Constants eg. Public Const eNormal = &H1&.
Option Explicit
'--------------------------Types, consts and structures
Private Const ERROR_CACHE_FIND_FAIL As Long = 0
Private Const ERROR_CACHE_FIND_SUCCESS As Long = 1
Private Const ERROR_FILE_NOT_FOUND As Long = 2
Private Const ERROR_ACCESS_DENIED As Long = 5
Private Const ERROR_INSUFFICIENT_BUFFER As Long = 122
Private Const MAX_CACHE_ENTRY_INFO_SIZE As Long = 4096
Private Const LMEM_FIXED As Long = &H0
Private Const LMEM_ZEROINIT As Long = &H40
Public Enum eCacheType
eNormal = &H1&
eEdited = &H8&
eTrackOffline = &H10&
eTrackOnline = &H20&
eSticky = &H40&
eSparse = &H10000
eCookie = &H100000
eURLHistory = &H200000
eURLFindDefaultFilter = 0&
End Enum
Private Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Private Type INTERNET_CACHE_ENTRY_INFO
dwStructSize As Long
lpszSourceUrlName As Long
lpszLocalFileName As Long
CacheEntryType  As Long         'Type of entry returned
dwUseCount As Long
dwHitRate As Long
dwSizeLow As Long
dwSizeHigh As Long
LastModifiedTime As FILETIME
ExpireTime As FILETIME
LastAccessTime As FILETIME
LastSyncTime As FILETIME
lpHeaderInfo As Long
dwHeaderInfoSize As Long
lpszFileExtension As Long
dwExemptDelta  As Long
End Type
'--------------------------Internet Cache API
Private Declare Function FindFirstUrlCacheEntry Lib "Wininet.dll" Alias "FindFirstUrlCacheEntryA" (ByVal lpszUrlSearchPattern As String, lpFirstCacheEntryInfo As Any, lpdwFirstCacheEntryInfoBufferSize As Long) As Long
Private Declare Function FindNextUrlCacheEntry Lib "Wininet.dll" Alias "FindNextUrlCacheEntryA" (ByVal hEnumHandle As Long, lpNextCacheEntryInfo As Any, lpdwNextCacheEntryInfoBufferSize As Long) As Long
Private Declare Function FindCloseUrlCache Lib "Wininet.dll" (ByVal hEnumHandle As Long) As Long
Private Declare Function DeleteUrlCacheEntry Lib "Wininet.dll" Alias "DeleteUrlCacheEntryA" (ByVal lpszUrlName As String) As Long
'--------------------------Memory API
Private Declare Function LocalAlloc Lib "kernel32" (ByVal uFlags As Long, ByVal uBytes As Long) As Long
Private Declare Function LocalFree Lib "kernel32" (ByVal hMem As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDest As Any, pSource As Any, ByVal dwLength As Long)
Private Declare Function lstrcpyA Lib "kernel32" (ByVal RetVal As String, ByVal Ptr As Long) As Long
Private Declare Function lstrlenA Lib "kernel32" (ByVal Ptr As Any) As Long
'Purpose     :  Deletes the specified internet cache file
'Inputs      :  sCacheFile              The name of the cache file
'Outputs     :  Returns True on success.
'Author      :  Andrew Baker
'Date        :  03/08/2000 19:14
'Notes       :
'Revisions   :
Function InternetDeleteCache(sCacheFile As String) As Boolean
InternetDeleteCache = CBool(DeleteUrlCacheEntry(sCacheFile))
End Function
'Purpose     :  Returns an array of files stored in the internet cache
'Inputs      :  eFilterType             An enum which filters the files returned by their type
'Outputs     :  A one dimensional, one based, string array containing the names of the files
'Author      :  Andrew Baker
'Date        :  03/08/2000 19:14
'Notes       :
'Revisions   :
Function InternetCacheList(Optional eFilterType As eCacheType = eNormal) As Variant
Dim ICEI As INTERNET_CACHE_ENTRY_INFO
Dim lhFile As Long, lBufferSize As Long, lptrBuffer As Long
Dim sCacheFile As String
Dim asURLs() As String, lNumEntries As Long
'Determine required buffer size
lBufferSize = 0
lhFile = FindFirstUrlCacheEntry(0&, ByVal 0&, lBufferSize)
If (lhFile = ERROR_CACHE_FIND_FAIL) And (Err.LastDllError = ERROR_INSUFFICIENT_BUFFER) Then
'Allocate memory for ICEI structure
lptrBuffer = LocalAlloc(LMEM_FIXED, lBufferSize)
If lptrBuffer Then
'Set a Long pointer to the memory location
CopyMemory ByVal lptrBuffer, lBufferSize, 4
'Call first find API passing it the pointer to the allocated memory
lhFile = FindFirstUrlCacheEntry(vbNullString, ByVal lptrBuffer, lBufferSize)        '1 = success
If lhFile <> ERROR_CACHE_FIND_FAIL Then
'Loop through the cache
Do
'Copy data back to structure
CopyMemory ICEI, ByVal lptrBuffer, Len(ICEI)
If ICEI.CacheEntryType And eFilterType Then
sCacheFile = StrFromPtrA(ICEI.lpszSourceUrlName)
lNumEntries = lNumEntries + 1
If lNumEntries = 1 Then
ReDim asURLs(1 To 1)
Else
ReDim Preserve asURLs(1 To lNumEntries)
End If
asURLs(lNumEntries) = sCacheFile
End If
'Free memory associated with the last-retrieved file
Call LocalFree(lptrBuffer)
'Call FindNextUrlCacheEntry with buffer size set to 0.
'Call will fail and return required buffer size.
lBufferSize = 0
Call FindNextUrlCacheEntry(lhFile, ByVal 0&, lBufferSize)
'Allocate and assign the memory to the pointer
lptrBuffer = LocalAlloc(LMEM_FIXED, lBufferSize)
CopyMemory ByVal lptrBuffer, lBufferSize, 4&
Loop While FindNextUrlCacheEntry(lhFile, ByVal lptrBuffer, lBufferSize)
End If
End If
End If
'Free memory
Call LocalFree(lptrBuffer)
Call FindCloseUrlCache(lhFile)
InternetCacheList = asURLs
End Function
'Purpose     :  Converts a pointer an ansi string into a string.
'Inputs      :  lptrString                  A long pointer to a string held in memory
'Outputs     :  The string held at the specified memory address
'Author      :  Andrew Baker
'Date        :  03/08/2000 19:14
'Notes       :
'Revisions   :
Function StrFromPtrA(ByVal lptrString As Long) As String
'Create buffer
StrFromPtrA = String$(lstrlenA(ByVal lptrString), 0)
'Copy memory
Call lstrcpyA(ByVal StrFromPtrA, ByVal lptrString)
End Function
'Demonstration routine
Sub Test()
Dim avURLs As Variant, vThisValue As Variant
On Error Resume Next
'Return an array of all internet cache files
avURLs = InternetCacheList
For Each vThisValue In avURLs
'Print files
Debug.Print CStr(vThisValue)
Next
'Return the an array of all cookies
avURLs = InternetCacheList(eCookie)
If MsgBox("Delete cookies?", vbQuestion + vbYesNo) = vbYes Then
For Each vThisValue In avURLs
'Delete cookies
InternetDeleteCache CStr(vThisValue)
Debug.Print "Deleted " & vThisValue
Next
Else
For Each vThisValue In avURLs
'Print cookie files
Debug.Print vThisValue
Next
End If
End Sub

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分析网页内容，取得<SCRIPT>
Option Explicit

Private Sub Form_Load()
    WebBrowser1.Navigate "http://test/index.html"
End Sub

Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)
    Dim sTemp As String
    Dim outStr As String
    Dim i As Integer
    Dim beginPos As Long
    Dim endPos As Long
   
    sTemp = WebBrowser1.Document.documentelement.InnerHTML
    'Text1.Text = sTemp
    i = 1
    Do While i <> 0
        i = InStr(1, sTemp, "<SCRIPT")
        If i <> 0 Then
            outStr = Left(sTemp, i - 1)
            sTemp = Right(sTemp, Len(sTemp) - i - 6)
            i = InStr(1, sTemp, "</SCRIPT>")
            If i <> 0 Then
                sTemp = Right(sTemp, Len(sTemp) - i - 8)
            End If
            sTemp = outStr & sTemp
        End If
    Loop
    WebBrowser1.Document.write sTemp
    'Text2.Text = sTemp
End Sub

 

=======================================================================

 

在"通用"里定义dim myhWnd() as long,dim i as integer
然后
dim newWin as form2
set newWin = new form2
newWin.Show
Set ppDisp = newWin.form2.object

redim myhWnd(i) as long
myhwnd(i)=newWin.hwnd
i=i+1

 

----------------------------------------------------------------

 

-----------------------------------------------------------------------------------------

 

===================================================================================
控制字体大小

webbrowser1 ExecWB OLECMDID_ZOOM, OLECMDEXECOPT_DONTPROMPTUSER, CLng(4 - Index)

index=0-4表示从最大到最小~~

最小的话,index=4，呵呵

webbrowser1 ExecWB OLECMDID_ZOOM, OLECMDEXECOPT_DONTPROMPTUSER,0
可以遍历页面，也可以~~

如果你只是想得到网页中的所有连接，这样就OK了~~

Option Explicit

Private Sub Command1_Click()
Command1.Enabled = False
WebBrowser1.Navigate2 Text1.Text
End Sub

Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, URL As Variant)

Dim x As Long
List1.Clear

For x = 0 To WebBrowser1.Document.Links.length - 1
    List1.AddItem WebBrowser1.Document.Links.Item(x)
Next x
Command1.Enabled = True
End Sub

Private Sub WebBrowser1_StatusTextChange(ByVal Text As String)
Label3 = Text
End Sub

 

==================================================================================================
Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "
    'Omitted
#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button1.Click
            AxWebBrowser1.Navigate(TextBox1.Text)
    End Sub

    Private Sub AxWebBrowser1_NewWindow2(ByVal sender As Object, _
        ByVal e As AxSHDocVw.DWebBrowserEvents2_NewWindow2Event) _
        Handles AxWebBrowser1.NewWindow2
            'MessageBox.Show(AxWebBrowser1.Height & ":" & AxWebBrowser1.Width)

            'MessageBox.Show(doc.body.innerHTML)
            Dim frmWB As Form1
            frmWB = New Form1()

            frmWB.AxWebBrowser1.RegisterAsBrowser = True
            'frmWB.AxWebBrowser1.Navigate2("about:blank")
            e.ppDisp = frmWB.AxWebBrowser1.Application
            frmWB.Visible = True
            'MessageBox.Show(frmWB.AxWebBrowser1.Height & ":" & frmWB.AxWebBrowser1.Width)
    End Sub

    Private Sub AxWebBrowser1_WindowSetHeight(ByVal sender As Object, _
        ByVal e As AxSHDocVw.DWebBrowserEvents2_WindowSetHeightEvent) _
        Handles AxWebBrowser1.WindowSetHeight
            'MessageBox.Show("In SetHeight" & Me.Height & ":" & e.height)
            Dim heightDiff As Integer
            heightDiff = Me.Height - Me.AxWebBrowser1.Height
            Me.Height = heightDiff + e.height
    End Sub

    Private Sub AxWebBrowser1_WindowSetWidth(ByVal sender As Object, _
        ByVal e As AxSHDocVw.DWebBrowserEvents2_WindowSetWidthEvent) _
        Handles AxWebBrowser1.WindowSetWidth
            'MessageBox.Show("In SetWidth" & Me.Width & ":" & e.width)
            Dim widthDiff As Integer
            widthDiff = Me.Width - Me.AxWebBrowser1.Width
            Me.Width = widthDiff + e.width
    End Sub

End Class

 

 

===================================================================================================
替换TEXTBOX的菜单。
Public Declare Function GetWindowLong Lib "user32" Alias _
                      "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As
                  Long) _
                      As Long
                  Public Declare Function SetWindowLong Lib "user32" Alias _
                      "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As
                  Long, _
                      ByVal dwNewLong As Long) As Long
                  Private Declare Function CallWindowProc Lib "user32" Alias _
                      "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hWnd
                  _
                      As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal _
                      lParam As Long) As Long
                  Public Function SubClass_WndMessage(ByVal hWnd As _
                      OLE_HANDLE,ByVal Msg As OLE_HANDLE, ByVal wParam As
                  OLE_HANDLE, _
                      ByVal lParam As Long) As Long
                      If Msg <> WM_CONTEXTMENU Then
                          SubClass_WndMessage = CallWindowProc(OldWinProc, _
                              hWnd, Msg,wParam, lParam)
                              ' 如果消息不是WM_CONTEXTMENU，就调用系统的窗口处理函数
                          Exit Function
                      End If
                      SubClass_WndMessage = True
                  End Function

                  >>步骤4----在窗体中加入如下代码:
                  Private Const GWL_WNDPROC = (-4)

                  Private Sub Text1_MouseDown(Button As Integer, Shift As _
                      Integer, X As Single, Y As Single)

                      If Button = 1 Then Exit Sub
                      OldWinProc = GetWindowLong(Text1.hWnd, GWL_WNDPROC)
                      ' 取得窗口函数的地址
                      Call SetWindowLong(Text1.hWnd, GWL_WNDPROC, AddressOf _
                          SubClass_WndMessage)
                          ' 用SubClass_WndMessage代替窗口函数处理消息
                  End Sub

                  Private Sub Text1_MouseUp(Button As Integer, Shift _
                      As Integer, X As Single, Y As Single)
                      If Button = 1 Then Exit Sub
                      Call SetWindowLong(Text1.hWnd, GWL_WNDPROC, OldWinProc)
                      ' 恢复窗口的默认函数
                      PopupMenu a
                      ' 弹出自定义菜单
                  End Sub

================================================================================================
选择网页上的内容。

'引用 Microsoft HTML Object Library

    Dim oDoc As HTMLDocument
    Dim oElement As Object
    Dim oTxtRgn As Object
    Dim sSelectedText As String
   
    Set oDoc = WebBrowser1.Document'获得文档对象
    Set oElement = oDoc.getElementById("T1")'获得ID="T1"的对象
    Set oTxtRgn = oDoc.selection.createRange'获得文档当前正选择的区域对象
  
    sSelectedText = oTxtRgn.Text'选择区域文本赋值

    oElement.Focus'"T1"对象获得焦点

    oElement.Select'全选对象"T1"

    Debug.Print "你选择了文本：" & sSelectedText

上面这段儿还附送了其他功能，呵呵。精简一下是这样：
    Dim oDoc As Object
    Dim oTxtRgn As Object
    Dim sSelectedHTML As String
   
    Set oDoc = WebBrowser1.Document '获得文档对象
    Set oTxtRgn = oDoc.selection.createRange '获得文档当前正选择的区域对象
  
    sSelectedHTML = oTxtRgn.htmlText '选择区域文本赋值

    Text1.Text=sSelectedHTML '文本框显示抓取得HTML源码
    ......'或者继续分析源码

==================================================================================
Private Declare Function URLDownloadToFile Lib "urlmon" _
   Alias "URLDownloadToFileA" _
  (ByVal pCaller As Long, _
   ByVal szURL As String, _
   ByVal szFileName As String, _
   ByVal dwReserved As Long, _
   ByVal lpfnCB As Long) As Long
 
Private Sub Command1_Click()

   Dim sourceUrl As String
   Dim targetFile As String
   Dim hfile As Long
  
   sourceUrl = "http://123.com/123.asp?姓名=张&性别=女"
   targetFile = "c:\temp\xxx.html"
   hfile = URLDownloadToFile(0&, sourceUrl, targetFile, 0&, 0&)
  
End Sub

URLDownloadToFile:
说明：
Downloads bits from the Internet and saves them to a file.

适用于：
VB4-32,5,6
声明：
Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long

操作系统支持：
Requires Windows NT 4.0 or later; Requires Windows 95 or later

库文件
Urlmon
参数：

pCaller：
Address of the controlling IUnknown interface of the calling Microsoft?ActiveX?component (if the caller is an ActiveX component). If the calling application is not an ActiveX component, this value can be set to NULL. Otherwise, the caller is a Component Object Model (COM) object that is contained in another component (such as an ActiveX control within the context of an HTML page). This parameter represents the outermost IUnknown of the calling component. The function attempts the download within the context of the ActiveX client framework and allows the caller's container to receive callbacks on the progress of the download.

szURL：
Address of a string value containing the URL to be downloaded. Cannot be set to NULL.

szFileName：
Address of a string value containing the name of the file to create for bits that come from the download.

dwReserved：
Reserved. Must be zero.

lpfnCB：
Address of the caller's IBindStatusCallback interface. URLDownloadToFile calls this interface's IBindStatusCallback::OnProgress method on a connection activity, including the arrival of data. IBindStatusCallback::OnDataAvailable is never called. Implementing IBindStatusCallback::OnProgress allows a caller to implement a user interface or other progress monitoring functionality. It also allows the download operation to be canceled by returning E_ABORT from the IBindStatusCallback::OnProgress call. This can be set to NULL. 

返回值：
Returns one of the following values:
E_OUTOFMEMORY
The buffer length is invalid or there was insufficient memory to complete the operation.
S_OK
The operation succeeded. 

具体的解释我就不翻译了
================================================================================================

 

Option Explicit
Enum OLECMDID
     OLECMDID_OPEN = 1
     OLECMDID_NEW = 2
     OLECMDID_SAVE = 3
     OLECMDID_SAVEAS = 4
     OLECMDID_SAVECOPYAS = 5
     OLECMDID_PRINT = 6
     OLECMDID_PRINTPREVIEW = 7
     OLECMDID_PAGESETUP = 8
     OLECMDID_SPELL = 9
     OLECMDID_PROPERTIES = 10
     OLECMDID_CUT = 11
     OLECMDID_COPY = 12
     OLECMDID_PASTE = 13
     OLECMDID_PASTESPECIAL = 14
     OLECMDID_UNDO = 15
     OLECMDID_REDO = 16
     OLECMDID_SELECTALL = 17
     OLECMDID_CLEARSELECTION = 18
     OLECMDID_ZOOM = 19
     OLECMDID_GETZOOMRANGE = 20
     OLECMDID_UPDATECOMMANDS = 21
     OLECMDID_REFRESH = 22
     OLECMDID_STOP = 23
     OLECMDID_HIDETOOLBARS = 24
     OLECMDID_SETPROGRESSMAX = 25
     OLECMDID_SETPROGRESSPOS = 26
     OLECMDID_SETPROGRESSTEXT = 27
     OLECMDID_SETTITLE = 28
     OLECMDID_SETDOWNLOADSTATE = 29
     OLECMDID_STOPDOWNLOAD = 30
     OLECMDID_ONTOOLBARACTIVATED = 31
     OLECMDID_FIND = 32
     OLECMDID_DELETE = 33
     OLECMDID_HTTPEQUIV = 34
     OLECMDID_HTTPEQUIV_DONE = 35
     OLECMDID_ENABLE_INTERACTION = 36
     OLECMDID_ONUNLOAD = 37
End Enum

Enum OLECMDF
    OLECMDF_SUPPORTED = 1
    OLECMDF_ENABLED = 2
    OLECMDF_LATCHED = 4
    OLECMDF_NINCHED = 8
End Enum

Enum OLECMDEXECOPT
    OLECMDEXECOPT_DODEFAULT = 0
    OLECMDEXECOPT_PROMPTUSER = 1
    OLECMDEXECOPT_DONTPROMPTUSER = 2
    OLECMDEXECOPT_SHOWHELP = 3
End Enum

Private Sub brwSaveAs_Click()
    On Error Resume Next

    Screen.MousePointer = vbHourglass
    DoEvents
    Web1(SSTab1.Tab).ExecWB OLECMDID_SAVEAS, OLECMDEXECOPT_DONTPROMPTUSER, "aa", "(*.txt)"
    If Err.Number <> 0 Then
        MsgBox "无法另存新文件！"
    End If
    Screen.MousePointer = vbDefault
End Sub

帮不了你了，这是webbrowser相关的一些资料，希望对你有用
=========================================================================================================
把WEBBROWSER1装到PICTURE里面

Set Me.WebBrowser1.Container = Me.Picture1

 

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