利用FSO取得BMP,JPG,PNG,GIF文件信息(大小,宽、高等)

80酷酷网    80kuku.com

  fso<%
  ':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  ':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  ':::   BMP, GIF, JPG and PNG                                     :::
  ':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  ':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  ':::                                                             :::
  ':::  This function gets a specified number of bytes from any    :::
  ':::  file, starting at the offset (base 1)                      :::
  ':::                                                             :::
  ':::  Passed:                                                    :::
  ':::       flnm        => Filespec of file to read               :::
  ':::       offset      => Offset at which to start reading       :::
  ':::       bytes       => How many bytes to read                 :::
  ':::                                                             :::
  ':::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  function GetBytes(flnm, offset, bytes)
     Dim objFSO
     Dim objFTemp
     Dim objTextStream
     Dim lngSize
     on error resume next
     Set objFSO = CreateObject("Scripting.FileSystemObject")
     
     ' First, we get the filesize
     Set objFTemp = objFSO.GetFile(flnm)
     lngSize = objFTemp.Size
     set objFTemp = nothing
     fsoForReading = 1
     Set objTextStream = objFSO.OpenTextFile(flnm, fsoForReading)
     if offset > 0 then
        strBuff = objTextStream.Read(offset - 1)
     end if
     if bytes = -1 then         ' Get All!
        GetBytes = objTextStream.Read(lngSize)  'ReadAll
     else
        GetBytes = objTextStream.Read(bytes)
     end if
     objTextStream.Close
     set objTextStream = nothing
     set objFSO = nothing
  end function

分享到
  • 微信分享
  • 新浪微博
  • QQ好友
  • QQ空间
点击: