[Lazarus] Form resize to standard size in IDE.

[zeljko]

On 05/07/2017 12:02 PM, Michael Van Canneyt via Lazarus wrote:
>
> Hi,
>
> Another oddity in the IDE designer.
>
> I have a form which contains some group boxes, radio buttons and a
> buttonpanel.
> Bordertstyle is bsDialog. No special properties regarding autosize or
> whatsoever have been set.
>
> When I switch (using F12) between source and form, it *always* resizes to
> some seemingly standard size and I need to fix the size.
>
> The form just contains the following:
>   Height = 279
>   Top = 218
>   Width = 443
>   BorderStyle = bsDialog
>   Caption = 'Resize Selected elements'
>   ClientHeight = 279
>   ClientWidth = 443
>   Position = poOwnerFormCenter
>   LCLVersion = '1.9.0.0'
>
> I have attached it for reference.
>
> I suspect the scaling and high-dpi is at work here: I have a
> dual-monitor system, with xinerama.
> To test that hypothesis, I tried to set scaled to false, but it doesn't
> help.
>
> Also: When the form designer is active, and I press save, the form is
> marked 'dirty'
> (i.e. not saved!)
>
> Anything I can do to help to diagnose the issue ?

If you suspect on HiDPI then you should disable scaling at application 
level (lazaruside) via Application.Scaled := False (or similar prop 
name) . In that case TCustomForm.Scaled should not be taken into account 
in any case.
Second thing: I assume that you're using Gtk2 ide. What is windowmanager 
? Does it run compositing ?

zeljko