Get all file property informations on Windows

# DumpStorage.py - Dumps some user defined properties
# of a COM Structured Storage file.

import pythoncom
from win32com import storagecon # constants related to storage functions.

# These come from ObjIdl.h
FMTID_UserDefinedProperties = "{F29F85E0-4FF9-1068-AB91-08002B27B3D9}"

PIDSI_TITLE               = 0x00000002
PIDSI_SUBJECT             = 0x00000003
PIDSI_AUTHOR              = 0x00000004
PIDSI_CREATE_DTM          = 0x0000000c

def PrintStats(filename) :

    if sys.platform == 'win32':
        if not pythoncom.StgIsStorageFile(filename) :
            print "The file is not a storage file!"
            return
        # Open the file.
        flags = storagecon.STGM_READ | storagecon.STGM_SHARE_EXCLUSIVE
        stg_= pythoncom.StgOpenStorage(filename, None, flags )

        # Now see if the storage object supports Property Information.
        try:
            pss = stg_.QueryInterface(pythoncom.IID_IPropertySetStorage)
        except pythoncom.com_error:
            print "No summary information is available"
            return
        # Open the user defined properties.
        ps = pss.Open(FMTID_UserDefinedProperties)
        props = PIDSI_TITLE, PIDSI_SUBJECT, PIDSI_AUTHOR, PIDSI_CREATE_DTM
        data = ps.ReadMultiple( props )
        # Unpack the result into the items.
        title, subject, author, created = data
        print "Title:", title
        print "Subject:", subject
        print "Author:", author
        print "Created:", created.Format()

if __name__=='__main__':
    import sys
    if len(sys.argv)<2:
        print "Please specify a file name"
    else:
        PrintStats(sys.argv[1])

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