[Lazarus] Too much space between TPageControl and its tabs

[Ondrej Pokorny]

On 29.10.2015 09:08, Luca Olivetti wrote:
> Hello,
>
> I have to show different things at different times in the same position.
> Instead of putting everything in the same spot of the form and setting 
> Visible only the item I want to show (which makes designing 
> difficult), I'm using a TPageControl with ShowTabs=False.
> The problem is that, at least on windows, there are 4 pixels of border 
> between the tab and the pagecontrol (on Linux it's just 2, but the 
> border is still there).
> I couldn't find a property to avoid it, and looking how it is drawn, 
> it seems it is deferred to windows, so there is no way to avoid this 
> border.
> Am I wrong?
> Is there an alternative component that I could use?
> For the time being, I use a panel and create the different controls at 
> runtime, but this is possible only in simple cases, not for complex 
> designs (well, of course it's possible but it's something I'd prefer 
> to do visually).
>
> Bye

Have you tried to ask uncle Google? He knows a lot: 
https://www.google.at/search?q=delphi+no+border+pagecontrol

In Delphi it is possible, I haven't tried in Lazarus. But since it is 
WinAPI, it should be possible as well.

Ondrej