I can open Unicode files in the viewer using either the button or a double-click. However, only a viewer launched from the button allows switching between images using the left/right and Page Up/Page Down keys.
Directory Opus 13.17.6.0 build 9351 english
Windows 11 24H2 build 26100.4770 on AMD64
Same here. Though If I set the custom command to the left double-click action of the images group, it works fine since it launches the command instead of opening it directly (with the side effect of briefly showing a terminal window, the button works the same way.).
Directory Opus 13.17.6 (Beta) Build 9351 x64
OS 10.0 (B:26100 P:2 T:1) SP 0.0
I don’t know if it is the restart afterwards or just a quirk of the RDP connection, but now it somehow works.
Edit 1: Well, a little more testing has revealed that it works for jpeg and png but not jpg. I need to investigate more here.
Edit 2: Alright, if I set the Photos app as default manually, it can't scroll with arrows when I open it via DOpus. Now I need to find a way to reset this setting so that the arrows work once again.
How the default app dialog looks for jpg files (manually selected Photos as the default app, no arrows when opened via double-click from DOpus):
How the default app dialog looks for jpeg files (left it as it was, most likely the current Windows default. Still opens MS Photos when double-clicked from DOpus, but with arrows):
Edit 3: Alright, I dug it out from the registry:
The default programs are most likely stored in this location (replace .jpg with the actual file extension): Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.jpg\UserChoiceLatest\ProgId
There's a REG_SZ type value with the name ProgId in there.
In .jpg this value was AppX4mntx4h978m1v9gtzv0ewksfd6pmwsre
In .jpeg this value was AppX43hnxtbyyps62jhe9sqpdzxn1790zetc
This results in the above pictures somehow. replacing the value above with the value below fixes the problem for that file extension (repeat for the other extensions as necessary). No restart or logoff required to apply the changes, you can immediately open the file, and the arrow browsing will be available again without any issues.
Edit 4: Finally, a small feedback about the comment editor here on this form: ıt would be nice if I could see the Strikethrough button, I had to enter ~~text~~ manually to do that for the original message above.