x2 48 - no thumbnails for some (large?) pics

jimspoon · Post by **jimspoon** » 2003 Nov 03, 19:45

I notice that I'm not getting a thumbnail for some pics in x2 thumbnail view. It seems to be the pics with a large file size, mostly those I have saved in PNG format.

Searching other messages I found a reference to nMaxFileSizeThumb - does this registry value need to be set to generate a thumb for these large files?

Does the file format (e.g. PNG) have anything to do with it?

fgagnon · Post by **fgagnon** » 2003 Nov 03, 23:09

You found the right registry key to tweak [nMaxFileSizeThumb].
Set value to zero for no size constraints.
Be sure to exit x2 before you edit registry, and restart x2 after quitting REGEDIT.

jimspoon · Post by **jimspoon** » 2003 Nov 04, 05:52

That did the trick - thanks.

I wasn't sure whether that reg value was for the preview window or for the thumbnails, but I guess the value name should have been a big hint.

I am a little puzzled about the need for a file size limit. I figured x2 would just use the same thumbnail functions as Explorer, and they've never been too slow for me even for 10M files. Once you've got a thumb in the thumbs.db file, it shouldn't be slow at all? On the other hand, I've never tried generating a thumbnail for one of those 500MB files made from a 4000dpi scan.

Post by **nikos** » 2003 Nov 04, 08:15

explorer has many ways of accelerating thumbnail generation like thumns.db and AFS but all are private and undocumented. Poor x2 has to extract thumbs from scratch every time, thanks m$!

on the positive side, x2 thumbs can be of any size, especially so in the previewer

TychoQuad · Post by **TychoQuad** » 2003 Nov 06, 09:18

I hate having thumbs.db files floating around anyway. I turned off saving them, and deleteted the lot of them.

Post by **nikos** » 2003 Nov 06, 10:23

explorer may still be caching thumbnails behind your back, on NTFS partitions. THere it uses alt streams instead of thumbs.db, so basically you aren't aware of anything -- your HD certainly is though!

TychoQuad · Post by **TychoQuad** » 2003 Nov 07, 10:19

I wish explorer.exe luck... I ran it last when? 3 weeks ago? I use an alternate shell, so any processes running explorer.exe is rare. If there are any other nasties around I should know about, please don't hesitate to tell me

Post by **nikos** » 2003 Nov 07, 10:45

well, i heard that the indexing service is secretly adding thumbnails to gfx files, too (really!)