This PR is much better than the previous one - no more regression.
However, it's not pretty at all in my original (white) theme.
This PR is about change the default behaviour but not a bug-fix or an enhancement.
I'll think about it.

Why not enhancement? It is a great thing for the user to be able to use leftmost/rightmost pixels.

Imo, enhancements, as well new features, may or may not change behaviors.
Maybe you would like to keep this for a higher version? 6.9?

👍

I can kind of see what @donho means. With the white theme and a 0 border, the top of the text area has nothing to delineate it from the tab area any more.

Yes, that's a very minor drawback, if there's a way to draw a solid line there, it would fix that. (Maybe a fake window with 0 height and WS_BORDER style? Dunno if it is possible in C++ and how to place in correct position)

Btw, the reason for keeping old behavior (ie. keep WS_EX_CLIENTEDGE) when border is more than 0, is because the scrollbar of Windows 8/8.1/10 theme has almost the same color of window/menu background (that kind of gray). Otherwise, I would just simply remove that style.

Compared to alot of people here my Win32 API knowledge is limited, so I can't really offer any suggestions. I'm just speaking from the pure "user" aspect of the changes. :)

For me, it is quite better with this update. It is the tab that should be updated, not an additional line to draw a border :)

👍
As in other software (Firefox) there should be a top border, but no side borders. A bottom border wouldn't be bad.

Exactly. Firefox is a great example!

I think this is a good PR. In cases where the user has a white theme and would like a small border, they can always leave the border value set to at least 1.

I think this is a good PR. In cases where the user has a white theme and would like a small border, they can always leave the border value set to at least 1.

Then that defeats the whole purpose.

Imo the lack of a top/bottom line (not border) is insignificant.

What's the purpose of adjustable border anyway (or any kind of border for that matter)?

@aaaxx:

What's the purpose of adjustable border anyway (or any kind of border for that matter)?

👆

I think this would greatly improve usability, as I've made a similar request!
Maybe a solution would be hiding the side borders only when maximized.

I've checked preferences dialogue in NPP 6.8.8 and did not found the setting - do I have to wait for a new update or is it in - if yes: where?
As soon as it's in I think #1071 can be closed with a comment how to set this option.

Preferences → Editing → "Border Width" options at the bottom centre of the window → "No edge" checkbox

It should be located in :
Preference > Editing > Border width > No edge

Thank you, I've see it now.
Rechecked: This doesn't solve #1071.

@GitMensch

You need to set "Border Width" to 0, enable "No edge", and also maximize the window. Works for me.