此方法在xp、window7下具有效果。
假设你要提取的flash在ppt中:
1、新建一个word文档(后缀是.doc,而不是.docx)
2、将待提取的ppt中的flash文件复制到步骤1中所建的word文档中。建议一个flash文件一个文档。
3、新建一个excel文档,快捷键[ALT+f11]调用出【Microsoft Visual Basic for Application】窗口
4、按快捷键[F7],调用出【代码窗口】。粘贴如下代码
5、按快捷键【F5】,运行。
6、步骤5会弹出一个窗口,让你选择文件,那么你就可以选择步骤2中的那个word文档。
7、完成步骤6后,就将你要提取的flash文件弄出来了。
Sub ExtractFlash() Dim tmpFileName As String Dim FileNumber As Integer Dim myFileId As Long Dim MyFileLen As Long Dim myIndex As Long Dim swfFileLen As Long Dim i As Long Dim swfArr() As Byte Dim myArr() As Byte tmpFileName = Application.GetOpenFilename("MS Office File (*.doc;*.xls), *.doc;*.xls", , "Open MS Office file") If tmpFileName = "False" Then Exit Sub myFileId = FreeFile Open tmpFileName For Binary As #myFileId MyFileLen = LOF(myFileId) ReDim myArr(MyFileLen - 1) Get myFileId, , myArr() Close myFileId Application.ScreenUpdating = False i = 0 Do While i < MyFileLen If myArr(i) = &H46 Then If myArr(i + 1) = &H57 And myArr(i + 2) = &H53 Then swfFileLen = CLng(&H1000000) * myArr(i + 7) + CLng(&H10000) * myArr(i + 6) + CLng(&H100) * myArr(i + 5) + myArr(i + 4) ReDim swfArr(swfFileLen - 1) For myIndex = 0 To swfFileLen - 1 swfArr(myIndex) = myArr(i + myIndex) Next myIndex Exit Do Else i = i + 3 End If Else i = i + 1 End If Loop myFileId = FreeFile tmpFileName = Left(tmpFileName, Len(tmpFileName) - 4) & ".swf" Open tmpFileName For Binary As #myFileId Put #myFileId, , swfArr Close myFileId MsgBox "Save the extracted SWF Flash as [ " & tmpFileName & " ]" End Sub