Yes, I mean a file manager like that, I'm using the "thunar" file manager.

But if i call them with "system()", I guess that on another pc without Thunar, nothing will happen? or worst case an error will appear?

I don't want a file selector thank you. To say it in "windows words", I want to open explorer at the position where my new image is located.

I already have the Path where the new image is located from a dialog box off getSaveFile(). So I want to say, open explorer at that path. But then in unix except windows.