Problem with win32api function + using DLL "directly" in windows

[Dave LeBlanc]

Mark Hammond has reported that he's added GetDiskFreeSpaceEx. Probably
in CVS.

Dave LeBlanc

On Fri, 13 Apr 2001 20:34:11 GMT, "Dublanc, David" <ddublanc at free.fr>
wrote:

>
>I use this script (that I found in the newsgroup) and the result is not
>correct. Is it possible to use Windows DLL libraries  library in Python ?
>Because there is a
>GetDiskFreeSpaceEx that seems to return the good results (thanks to Chris
>Gonnerman who gives me the name of this function).
>
>David
>
>***************************
>import string,win32api,win32file
>
>def PrintSpaceReport(drive):
>    sectorsPerCluster,bytesPerSector,numFreeClusters,totalNumClusters =
>win32file.GetDiskFreeSpace(drive + ":\\")
>    print  sectorsPerCluster, bytesPerSector,
>numFreeClusters,totalNumClusters
>
>    sectorsPerCluster = long(sectorsPerCluster)
>    bytesPerSector = long(bytesPerSector)
>    numFreeClusters = long(numFreeClusters)
>    totalNumClusters = long(totalNumClusters)
>
>    print "Drive : ", drive + ":\\"
>    print "Freespace : ", numFreeClusters * sectorsPerCluster *
>bytesPerSector / (1024**2), "MB"
>    print "Totalspace : ", totalNumClusters * sectorsPerCluster *
>bytesPerSector / (1024**2), "MB"
>
>def main():
>    AvailableDrives = []
>    for i in string.split(win32api.GetLogicalDriveStrings(),'\000'):
>
>        if win32file.GetDriveType(i)==3:# We only need fixed drives (no CD
>drives)
>            AvailableDrives.append(i[:-2])
>        DriveInfo = []
>
>
>        print AvailableDrives
>        for drive in AvailableDrives:
>            PrintSpaceReport(drive)
>
>if __name__ == '__main__':
>    main()
>*******************************************
>
>"Mark Hammond" <MarkH at ActiveState.com> a écrit dans le message news:
>3AD70CBA.8050202 at ActiveState.com...
>> Dublanc, David wrote:
>>
>> > I have a problem with the fonction win32file.GetDiskFreeSpace
>>
>> >
>>
>> > The maximum number of space is : 65536 bytes. So if the hard disk
>capacity
>>
>> > is > 2 Go, the function returns a wrong result.
>>
>> >
>>
>> > Do you have solution for this problem ?
>>
>>
>> Check out the documentation in the help files - the number of bytes is
>> not returned, but 4 different values are to help you calculate it:
>>
>> "number of sectors per cluster, the number of bytes per sector, the
>> total number of free clusters on the disk and the total number of
>> clusters on the disk"
>>
>>  >>> import win32file
>>  >>> spc, bps, free_c, tot_c = win32file.GetDiskFreeSpace("F:\\")
>>  >>> print 1L * free_c * spc * bps
>> 2477039616
>>  >>>
>>
>> Note the "1L" will prevent integer overflow - this little wart should be
>> removed in a Python coming your way soon :)
>>
>> Mark.
>>
>>
>
>