Using Python to add thumbnails to Explorer

[Roger Upole]

As you guessed, the icon locations are stored in the registry.
There's a key under HKEY_CLASSES_ROOT for each
registered file type, with a default value holding the class name.
Under the class name, there's a DefaultIcon key that gives
the path to the icon.  Using python files an an example, you
have HKCR\.py with Default=Python.File, and under
HKCR\Python.File\DefaultIcon, you should have the
path to py.ico.  You can use the _winreg module to create
your own entries.

     hth
        Roger




"c d saunter" <christopher.saunter at durham.ac.uk> wrote in message news:djocih$msn$1 at heffalump.dur.ac.uk...
> Greetings All,
> In Widows Explorer there is a thumbnail view, where you see images as thumbnails.
> Applications such as MS Office and OpenOffice, when installed, cause their respective filetypes
> to be previewed as thumbnails as well.
>
> Thumbnails are stored in the Thumbs.db hidden file.
>
> There my knowledge ends.  I'm asuming that aplications install registry keys somewhere that
> register an invocation that returns a thumbnail for a given file bit this is just a guess.
>
> What I'd like to do is write some Python script that can be invoked to add thumbnails for
> certian file types (my own custom types and things like the .FITS array format.)
>
> Googling isn't going anywhere so I am hoping there are some wizards out there with poiters...
>
> Specifically any information on how the thumbnail system works would be great!
>
> Cheers,
> Chris 




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