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ASP.NET 中的 Check if a File is in Internet Explorers Cache
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-11-03 浏览: 67 ::
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This function can be called to determine if a file is in Internet Explorers cache. CodePrivate Declare Function GetUrlCacheEntryInfo Lib "wininet.dll" Alias _ "GetUrlCacheEntryInfoA" _ (ByVal sUrlName As String, _ lpCacheEntryInfo As Any, _ lpdwCacheEntryInfoBufferSize As Long) As LongFunction Cached(ByVal strURL As String) As Boolean Dim buffer As Long If (GetUrlCacheEntryInfo(strURL, ByVal 0&, buffer)) = 0 Then If (Err.LastDllError = 122) Then Cached = True End Function
Example Usage
Just call the function and give it the url of the file you want to check:MsgBox Cached("http://msdn.microsoft.com/")
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