Issue with Thumbnail View: thumbnails of png files not showed

[gunterotto]

2. Install Irfanview and set the path to it in the Lister's configuration.

This simple solution worked fine; JPEG and PNG thumbnails seem to display properly in OneDrive now. I do my darndest to keep addons and plugins to a minimum but, who knows, there was a time I used IrfanView a lot. Takes me back a decade or so, however!
Thanks for all the help, Total Commander is an awesome and invaluable tool for so many of us!

[AntonyD]

2gunterotto
please test suggestion made above by petermad

The default file type list for: "Internal thumbnails from images" (ThumbGdiplusTypes) is: *.jpg *.dng *.arw *.crw *.cr2 *.cr3 *.nef *.orf *.pef *.raf *.rw2
Maybe adding *.jpeg to that list solves the problem

Of course before that - remove Irfan from the Lister's configuration.

[ghisler(Author)]

This only helps when the jpg/jpeg file has a thumbnail stored in the file itself. For example, my phone takes photos with embedded thumbnails, but there are no thumbnails when taking a panorama. And you don't need to remove Irfanview because the topmost method "Internal thumbnails from images" is tried first, then lister plugins, then Explorer, then Irfanview.

[AntonyD]

2ghisler(Author)
If we need to check the behavior described above, then we need to get a negative result, if there is one.
And with your proposal NOT to remove Irfan, we are always guaranteed to get a positive result in the end.

[ghisler(Author)]

Yes, that's my point: The goal is to always get a thumbnail.

[petermad]

2ghisler(Author)
And AntonyD's goal (and mine) in this case was to test whether adding *.jpeg to ThumbGdiplusTypes would solve the specific problem for gunterotto

[gunterotto]

2ghisler(Author)
And AntonyD's goal (and mine) in this case was to test whether adding *.jpeg to ThumbGdiplusTypes would solve the specific problem for gunterotto

Yes, that worked for JPEG, but it did not work for PNG. Odd, may have had an embedded thumbnail? Note that I had to uninstall Irfanview as both thumbnails still worked even after I unchecked "Use Irvanview/Xnview" in Edit/View > Multimedia. (and worked again as soon as I re-installed Irfanview, again without checking the config Multimedia option.)
I appreciate all the effort but no need to go down a rathole for a small problem that has not been an issue for all these years of TC. The workaround is simpler than the fix. Unless, of course, you welcome the challenge! [:-)

[AntonyD]

Yes, that worked for JPEG, but it did not work for PNG.

good news, huge thanks for coop-work ) And yes PNG does not contains thumbs. Most of the time.
Although the possibility has potentially existed since 2017. When extended EXIF metadata support for this format was approved.

I had to uninstall Irfanview as both thumbnails still worked even after I unchecked "Use Irvanview/Xnview" in Edit/View > Multimedia

VEEEERY strange behavior!
Mr.Ghisler - WHY such case even could arise? Mentioned checkmark does not have any relation to the thumb generation?
You use the calls to IrfanView directly? with assumption that irfan.exe does exist in PATH var.?

[ghisler(Author)]

WHY such case even could arise?

When extracting a thumbnail takes extra long, TC saves the thumbnail image to the thumbnail database. To erase it from there, you need to right click on the file (or selected files) and choose "Re-load selected thumbnails". But uninstalling Irfanview should not have any influence on that...

[jonathanpoulin]

I have now checked this in the debugger:
1. For jpg files, Total Commander extracts the thumbnail stored within the image file by itself. This also works in the OneDrive folder.
2. For jpeg and png files, Total Commander calls the OLE function IThumbnailProvider->GetThumbnail when there are no Lister plugins to handle jpeg.
This works for files outside of the OneDrive folder, but inside it returns a strange error code 0x8004B205.
There are almost no results for this code (put in double quotes) on Google, except for "WTS_E_EXTRACTIONPENDING".
This seems to indicate that Windows postponed or cancelled the loading of that thumbnail.
Unfortunately there doesn't seem to be a parameter for IThumbnailProvider->GetThumbnail to force-load the thumbnail.

So your options are:
1. Install a Lister plugin which can extract thumbnails
or
2. Install Irfanview and set the path to it in the Lister's configuration.

Hi,

I recently installed TC 11.50RC2 from scratch on another computer, cleanly and without a Lister plugin which can extract thumbnails.

So, Mr. Ghisler, any update about that and a possible fix for the error 0x8004B205 (that seems to be the source of the problem)?

[ghisler(Author)]

No, there doesn't seem to be any documentation on how to react to this error.

[jonathanpoulin]

No, there doesn't seem to be any documentation on how to react to this error.

Ok, thanks for the reply. I understand.

[jonathanpoulin]

Hi,

By the way, I just found out a little bug (my post can be moved after confirmation). In Options -> Operation -> Edit/View -> Configure internal viewer... -> Multimedia, the checkbox "Use Irfanview/Xnview to load graphics other than BMP" seems to be not used. In fact, if the path to Irfanview below the checkbox is valid, Irfanview is used no matter if the checkbox is checked or not. I am pretty sure about it. Mr. Ghisler, can you test it?

[petermad]

the checkbox "Use Irfanview/Xnview to load graphics other than BMP" seems to be not used.

Not confirmed - maybe it is just another plugin or TC itself that displays the image for you when the checkbow is not activated. What file type(s) have you tested it with?

I tested with a .dds file, which is not supported by TC itself. I used a clean ini file and added i_view32.exe with full path to Listers configuration AND also added *.dds to the field: "Additional Irfanview/Xnview file types". Under this setup the state of the checkbox is used.

[white]

the checkbox "Use Irfanview/Xnview to load graphics other than BMP" seems to be not used.

Not confirmed

Also not confirmed.