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StgOpenStorage (ole32)
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C# Signature:
/// <summary>Opens a compound document file and represents it as an IStorage object</summary>
/// <remarks>Use on Windows 2000 and earlier</remarks>
/// <param name="pwcsName">The path and filename of the file to open</param>
/// <param name="pstgPriority">Generally passed as null</param>
/// <param name="grfMode">Access Method</param>
/// <param name="snbExclude">Must be NULL</param>
/// <param name="reserved">Pass as zero (0)</param>
/// <param name="ppstgOpen">out IStorage</param>
/// <returns>int HRESULT</returns>
[DllImport("ole32.dll")]
static extern int StgOpenStorage(
[MarshalAs(UnmanagedType.LPWStr)] string pwcsName
, IStorage pstgPriority
, STGM grfMode // Access Method (uint)
, IntPtr snbExclude // Must be NULL
, uint reserved // Reserved
, out IStorage ppstgOpen); // Returned Storage
///PreserveSig set to false automatically converts HRESULTS values to exceptions.
///Note the return value is void not an int (HRESULT).
[DllImport("ole32.dll", PreserveSig = false)]
static extern void StgOpenStorage([MarshalAs(UnmanagedType.LPWStr)] string pwcsName,
IStorage pstgPriority, STGM grfMode, IntPtr snbExclude, uint reserved,
out IStorage ppstgOpen);
string pathAndFilename = @"C:\outlookmail.msg"
IStorage storage;
int hResult = StgOpenStorage(pathAndFilename, null, STGM.READ_ONLY, IntPtr.Zero, 0, out storage);
// Then one can use the EnumElements method of the IStorage interface to enum the properties of the OLE2 storage.
Alternative Managed API:
See StgOpenStorageEx for an example of using the System.IO.Packaging classes to access OLE structured storage.
TODO - a short description
10/25/2015 7:07:57 AM - erlichmen@_NOSPAM_gmail.com-193.27.93.1
TODO - a short description
10/19/2009 7:36:00 AM - anonymous
Click to read this page
5/16/2017 3:40:12 AM - anonymous
Click to read this page
5/16/2017 3:40:12 AM - anonymous
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