no this option is very useful. e.g. just have a look at some image programs, where you can zoom the image by just using your mousewheel (e.g. ACDSee, IrfanView, XnView)
on windows you normally have an "Apply" button instad of an "Save" button. The "apply" button wouldn't close the preferences windows once it was pushed by the user
Just a little suggestion to improve the usage of this function:
- add a pulldownmenu to this (with the selection for 4:3 and 16:9)
- This option shouild also be available in the normal VLC menu, so the user have a faster access to it.
this is a suggestion especially in connection of file sharing programs.
VLS should mark areas which are currently available in the seekbar with a special colour. So the user can easily see which parts of a movie he can preview and which not