DLL version number

[Roger Upole]

The \StringFileInfo\.... calls retrieve all the info that comes up on the
property page, including the 4-part version number.  You can also use
win32api.HIWORD and win32api.LOWORD to separate the FileVerserionMS
and FileVersionLS that are returned when it's called with just a \.
     hth

           Roger

"Hung Jung Lu" <hungjunglu at yahoo.com> wrote in message
news:8ef9bea6.0403091148.19e75629 at posting.google.com...
> "Roger Upole" <rupole at hotmail.com> wrote in message
news:<404d1159_5 at 127.0.0.1>...
> > You can use win32api.GetFileVersionInfo.
> > See /demos/getfilever.py for an example of how to use it.
> >        Roger
> >
> > "Hung Jung Lu" <hungjunglu at yahoo.com> wrote in message
> > news:8ef9bea6.0403081509.31b3f9e at posting.google.com...
> > >
> > > If I have a Windows DLL file, how can I retrieve its version number
> > > (e.g.: 2.40.4275.1)? Does Win32 extensions, ctypes or related modules
> > > provide such a utility?
>
> Thanks. However, I still have problems. What I need are the 4-part
> version numbers, which GetFileVersionInfo() does not provide.
>
> I tried several alternatives, including GetFileVersionInfo() and the
> mwi module. However, these alternatives do NOT give the 4-part version
> number that one sees by right-clicking on a DLL (on Win2k.) The
> puzzling part is that apparently at the C level, the data structure
> _DllVersionInfo contains only 3 parts: dwMajorVersion, dwMinorVersion,
> dwBuildNumber.
>
> (For COMCAT.DLL, GetFileVersionInfo() gives only two-part version
> number: 4.71, whereas if you right click in Windows 2000, you get a
> four-part version number: 4.71.1460.1)
>
> Anyway, the relationship between the 4-part version number and the
> 3-part version number is highly non-trivial and I do not see any easy
> rules that applies to all DLLs. (For some DLLs, the last part of a
> 3-part version number can be split into the last two parts of the
> 4-version number, but this rule is not universal.)
>
> I wonder what Windows uses internally to get the 4-part version
> numbers?
>
> regards,
>
> Hung Jung