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StgIsStorageFile
Indicates whether a particular disk file contains a storage object.
HRESULT StgIsStorageFile(
const WCHAR * pwcsName
| //Points to a pathname of the file to check
| );
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Parameter
pwcsName
Points to the name of the disk file to be examined. The pwcsName parameter is passed uninterpreted to the underlying file system.
Return Values
S_OK
Indicates the file contains a storage object.
S_FALSE
Indicates the file does not contain a storage object.
STG_E_INVALIDFILENAME
Indicates a bad filename was passed in the pwcsName parameter.
STG_E_FILENOTFOUND
Indicates the pwcsName parameter could not be determined.
See also any file system errors for other error return values.
Comments
At the beginning of the disk file underlying a storage object is a signature
distinguishing a storage object from other file formats. The StgIsStorageFile function is useful to applications whose documents use a disk file format
that might or might not use storage objects.
See Also
StgIsStorageILockBytes
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