XnView Software

For me it appears only in the classic context menu (right click a file, then select "show more options" or press shift + context menu key on the keyboard).

It should be possible to add it to the standard menu, Windows 11 has different API commands for each menu.

Is there an option somewhere which ...

A couple of programs (WinRAR, Notepad++, Bitdefender, to name a few examples) are well able to place menus into the new UI, Windows offers an API command for that. It should also be possible for this excellent tool.

That did it!

Thank you so much.

Not only "when", but also "after". Also the video has not to be shown in the viewer, it's enough if the file was shown shortly as preview in XnViewMPs file browser for a moment. From that moment on the graphics initialization when switching the viewer from (or to) fullscreen happens.

So far I saw ...

I found something.
Since I had this behaviour most of the time, but not all the time, I tried to find out what triggered it.
In a directory with Jpegs only I could not reproduce it.
It seems to be triggered once certain webp,webm or animations were loaded.
I uploaded a sample here were I got that ...

In the previous post I gave false information, sorry. When I compared the directories, I only looked at files with the same name. Since most files in the new version got a different name, the information "most are the same" is completely wrong.

Anyway ... in verion XnViewMP-v1.43 and XnViewMP-v1.44 ...

Sorry for causing so much hassle :)

It really looks like there's something that makes Windows 11 think this has to be threated as 3D application.

Btw, I also found a older XnViewMP version in my archives (0.99) which does not behave this way, I noticed this behaviour only in the one I downloaded ...

If you say "browser", you mean the fileview or an internet browser? Neither show this behaviour.

This only happens when viewing a image and pressing F11 to switch between full screen and windowed mode, whereby ther is no difference if the image viewer was maximized before or not.

Here's what my ...

Classic works just fine, it only happens with XnMP.

I saw that XNViewMP uses the GPU, could it be that it uses a OpenGL renderer? That might cause some 3D settings to take effect when going to fullscreen.

If I can provide any useful information, let me know.
Besidex XNV-MP I am also using XNV classic and ACDSee 18 which both don't have this issue.

I'm trying XnViewMP at the moment. Looks good so far, bu I have a little issue.
When switching between full screen and windowed mode, it causes a reinitialisation of the graphics mode which results in the screen turning black for a couple of seconds. The same happens when alt+tabbing.
I know I am ...