问题描述
Hello Everyone，
Hello Everyone,
我首先在 - 但是再次在这里重写问题。
I had first posted this on http://forums.asp.net/t/1615658.aspx - but rewriting the problem here again.
我需要提取元数据（所有属性/用户上传的任何文件（可以是pdf，txt，doc，docx，xls，xlsx，jpg等）的System.IO.FileAttributes以外的属性。
I need extract meta-data (all the attributes/properties other than exposed by System.IO.FileAttributes) of any file (could be pdf, txt, doc, docx, xls, xlsx, jpg, etc.) uploaded by the user.
为此，我从MS中找到了dsofile.dll，并从。然后注册了dll并使用了相同的代码，我写了以下代码：
For this I found out dsofile.dll from MS, and downloaded from http://support.microsoft.com/?kbid=224351. Then registered the dll and using the same, I've written following code:
DSOFile.OleDocumentPropertiesClass objFile;
objFile = new DSOFile.OleDocumentPropertiesClass();
objFile.Open(strFile, false, DSOFile.dsoFileOpenOptions.dsoOptionOpenReadOnlyIfNoWriteAccess);
objFile.Close(false);
推荐答案
Dim DSOF As DSOFile.OleDocumentProperties
Dim FName As String
FName =" ; C：\A\Book1.xls" 'works
FName =" C：\A\Book1.xlsm" '不工作
DSOF =新DSOFile.OleDocumentProperties
DSOF.Open FName，True，dsoOptionOpenReadOnlyIfNoWriteAccess
Debug.Print DSOF.SummaryProperties.Author
DSOF.Close
Dim DSOF As DSOFile.OleDocumentProperties
Dim FName As String
FName = "C:\A\Book1.xls" ' works
FName = "C:\A\Book1.xlsm" ' does not work
DSOF = New DSOFile.OleDocumentProperties
DSOF.Open FName, True, dsoOptionOpenReadOnlyIfNoWriteAccess
Debug.Print DSOF.SummaryProperties.Author
DSOF.Close
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