You have to write a shell extension that implements IExtractImage2 and extracts the thumbnail for Explorer. Oh, and it's COM, so better expect to feel dirty afterwards.
OregonGhost
2009-03-06 07:36:21
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I use raw C++ so I expect to feel filthy after a day or two rolling in COM.
Jimmy J
2009-03-06 10:18:30
Or you can use EZShellExtensionsMFC and feel clean and tidy :-)
logicnp
2009-11-20 09:01:22
I don't feel clean and tidy after using something that has the name MFC in it :X
OregonGhost
2009-11-20 09:38:51
If I understand the preview handler docs right, it is for the view panel in Explorer, not for thumbnails.
OregonGhost
2009-03-06 10:28:13
They're also used for thumbnails (at least on Vista). But of course, implementing IExtractImage works too (and may be better for pre-Vista OS). The advantage of preview handlers is that they're 'out-of-process' and can't crash the shell, are called in a background thread with low priority, ...
Stefan
2009-03-06 11:11:33