I've tried for the first time Anchordockingdsgn on GTK2.

Impressive work. Thank you.

There is one thing, that I would call a "show stopper" for practical use: Everytime I choose an Item from the component palette, the Design-Form goes behind the IDE/Editor.

And the bug http://bugs.freepascal.org/view.php?id=17015 shows here. When maximizing the IDE, the sub-windows are not aligned correctly (always). See: http://www.theo.ch/lazarus/anchordsgn.png
The image shows a maximized IDE.
It sizes correctly if afterwards, I resize some windows inside the IDE, but not at the time when I'm maximizing.

Thank you.
Theo

Yes.
The bring to front comes from the window manager, so this can not be changed.
This can only be remedied if the component palette is not docked to the big source editor, or by docking the designer form. Both are planned, but probably not for 0.9.30.

And the bug http://bugs.freepascal.org/view.php?id=17015 shows here.

Yes, somehow the LCL gets a size message from the past. I had not the time yet to dig deeper.

Mattias

The bring to front comes from the window manager, so this can not be changed.

Maybe the code I've posted here could help with the WM problem: http:/msg10541.html

But I understand if you don't want XLib code in the LCL.

Thank you
Theo