Re: modified status icons

webpost_at_tigris.org wrote:
> I have been searching the net for so long but couldn't find any help.
>
>
> There are a lot of applications that show the preview of a file
> (3dsMax) as an icon of the saved file.
>
> Similar thing is done in tortoise SVN as it updates the icon for each
> file (Adds a green tick mark or red exclamation mark) according to
> the current modified status of the file.
>
> Can anyone please point me in some direction as how it can be
> implemented. I want to display a preview of my own format file as an
> icon.

TortoiseSVN uses overlay handlers. Those don't modifiy the original icon
at all.
What you're looking for is either a preview handler or an IExtractImage
handler:
http://www.codeproject.com/KB/shell/thumbextract.aspx
http://msdn.microsoft.com/en-us/library/bb761842(VS.85).aspx
http://msdn.microsoft.com/en-us/library/bb776867(VS.85).aspx

Stefan

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