Dopus 13.6 on Win 10. In windows I have set .webp files to open with irfanview, and in Explorer upon double-clicking a .webp file it does. In dopus I have already set Settings|File Types|System File Types|webp to open with "C:\Program Files\IrfanView\i_view64.exe" "%1". Yet double-clicking on it in a dopus lister it opens in the standalone dopus viewer, which says "Unable to load as picture." What am I doing wrong? TY.
Opus's viewer should be able to open WebP files. Can you zip and attach an example that doesn't open?
To use a different viewer: How to stop the Opus image viewer from being used by default
Attached is the file I was having trouble with. I used Marco Pontello's excellent tridnet to verify it was a .webp file. Of note, other .webp I can successfully open with the dopus d8viewer, or with the irfanview I've set windows and dopus to use for double-clicking. So it's something peculiar about this .webp file. In explorer and the dopus lister, it has the irfanview icon (like all my .webp files now), but on double-clicking it tries to open in the dopus standalone viewer, and fails saying Unable to load as a picture. Any comment? TY.
test.zip (149.4 KB)
Might have to do with the fact that it's an animated webp?
Maybe related with this change mentioned here:
- WebP files are now recognised by file content, allowing WebP files with incorrect extensions (e.g. .JPG) to be displayed.
Though just realized that was changed in 13.6.2 beta. So not sure if you were using the beta or not.
Animated WebP is a completely different format to normal WebP, and not something Opus supports currently.
I don't know what has been going on with Windows lately but my default programs have been getting messed with on several different occasions and I know for a FACT that it wasn't anything I had done. I found a Win10 update recently was to blame for it, but this happened to me at least once or twice more past that. There aren't many things more frustrating than having to go through and fix all that crap. Uhgh.
I found that Animated WebP only works in the file viewer using the MetaPlugin with the Web Browser selected for Edge and it has the WebP extension in there. That's the only thing that works to display animated webps on my end.
@Leo @travibe To be clear, in this case (probably because as Leo says dopus can't handle animated webp) I don't want dopus trying to open it in favor of irfan, but dopus still tries to when I double-click it. Suggestions?
Can you screenshot the File Types window you have set for .webp? I am able to get the image to open with irfanview no problem myself.
I'm wondering if what's happening is you have the webp file type registration misconfigured somehow, so Opus is defaulting to the internal image viewer which doesn't support the animated one.
Notice this setting which opens the internal viewer for unregistered picture types which seems to be happening here. If you don't have it set to this already, I think doing so would actually fix your problem.
By default I believe webp is registered as an image type in the "Images" file type group (unless I added it myself and forgot):
With it like that I was able to just use Windows to assign Irfanview as the default program to associate with .webp and it seems to open with IrfanView no problem by default.
If you want to use the Opus viewer for everything it can handle, except WebP (animated or normal), the easiest thing is to turn off the WebP plugin via Preferences / Viewer / Plugins.
I don't understand the question that is being asked here. If you want the File Viewer (panel that opens within DOpus on right hand side) to be able to view ANIMATED WebP IMAGES, make sure you have WebP plugin disabled in your viewer plugins, and you have Metaplugin at the bottom enabled. Go inside the options of the Metaplugin, and go to the bottom where you can enable Edge (Microsoft Web Viewer) and make sure that it has the .WebP extension included in the extensions it looks for. This plugin has no problem viewing either Animated or Still versions of WebP files. I use it everyday.
If you are interested in a program outside of DOpus to view WebP files within, that is completely unrelated to DOpus and the purview of this board, but I will share that I use Honeyviewer because it is simple, low resource usage, and works with nearly all formats.
If you want to deal with default programs that open when you double click a specific format of picture, then we will have to go into how to change the default programs within Windows and/or DOpus, and I don't want to get into all of that unless that is specifically what you are talking about. Message me if you need further verification.
@Leo @travibe TY, but the problem is, upon double-clicking in dopus, dopus still tries to open the webp file in the standalone viewer (which fails since it's an animated webp, as I now understand), despite my having chosen irfanview to open webp in Settings|File types. In windows settings, I have also chosen irfanview to open webp files, and from Explorer it successfully opens in irfanview. So there's something in dopus that is latching onto the webp file type despite my setting it to open in irfanview. (Incidentally, using the viewer pane on the file just remains white rather than showing either the animated image or the unable message.)
I do still want to use the dopus viewer for almost all other file types, and it otherwise is behaving great. I also removed webp from the image file type group, but it didn't help.
ok you have to change windows default opening settings then. Go into the Settings and open Apps, then open Default Apps, then choose default apps by file type. Go down the list to Webp and tell it which program you want it to use to open
See my first reply, above.
TY. I had the same settings already set in File Operations | Double-click on Files. And I have windows set to open webp in irfan, and it works from Explorer, but in dopus it still tries to open it in the dopus standalone viewer instead.
Quick response! TY. However, I already had webp set to open in windows's default apps panel.
TY @Leo @travibe @ThioJoe. Indeed, the answer was in Leo's first post, which essentially says to put a line into the Events tab of File Types telling it to use the shell action for left-double-click. I had instead edited the Actions tab, putting in "C:\Program Files\IrfanView\i_view64.exe" "%1", which is apparently not the way to do it. He solved it (AGAIN)!
(Note, though, that Leo's referenced article is from 2005, and exact names of tabs, etc., have changed since then.)
glad you got it sorted out. I actually relearned something here myself so thank you for bringing this up.