Microsoft Photos app in Windows 10 is unable to display pictures

[ivorytir]

Hi,
The Microsoft Photos (Microsoft.Photos.exe), default photo viewing app in Windows 10, is not able to display pictures from a dokany-mapped drive. It shows error IMG_xyz.jpg We can't open this file

The issue is easily reproducible using the mirror example (tested on commit c39e712). It happens in local or removable drive mode (/r), network drive mode (/n) seems to be fine. I can provide dokany debug output if needed, but have not spotted any errors in there though.

Cheers, Ivo

[Liryna]

Hello,

Thanks for the report !

This has already been reported in a discussion of a closed ticket.
#26 (comment)
The possible fix has been added to the TODO of dokan (see Add Oplock Semantics)
#45

If you can provide patch to add the implementation it would be really great !

[Liryna]

Fixed with 731a627

[ivorytir]

Thanks Liryna, the fix works great!

[js69]

I think we need to reopen the issue. With the current repo (compiled locally) I have the issue that the preview in Explorer shows pictures only partially and Windows 10 Photo app doesn't show some pictures completely on C-mirror sample drives. Screenshots show the icon thumbnall and preview in Explorer with picture obviously not loaded completely.

Tested in a Win 10 (10586) VM.The issue occurs not always, nondeterministically, try with ten large pictures in a folder for reproduction.

[Liryna]

Hi @js69 ,

I think your issue is more related to #154
Before the fix of this issue, you was absolutly not able to open a picture at all.

[js69]

Yeah, you are right. Sorry for duplicate.