[KWin - Dock Question] - How to hide a window from PresentWindows effect?

[Martin Gräßlin]

Am 2016-12-08 20:28, schrieb Michail Vourlakos:
> On 08/12/2016 09:09 μμ, Martin Graesslin wrote:
>> In the case of the XCB Qt plugin the ordering of the calls is 
>> important. You
>> need to set such flags before the window is created. Calls to 
>> KWindowSystem can
>> destroy it again.
>> 
>> If you want to check how it's done: look at the Plasma::Dialog class 
>> which
>> supports a no input mode for the OSD.
> can you please point me more precisely in this code please? where is
> the Plasma:Dialog c++ code?

https://cgit.kde.org/plasma-framework.git/tree/src/plasmaquick/dialog.cpp

the property in question is outputOnly. But it looks like that's only 
using an input shape which might (?) not help you.

> 
> 
>>>   >     m_dockWindow->setFlags(Qt::WindowDoesNotAcceptFocus |
>>> 
>>> Qt::FramelessWindowHint);
>>> 
>>> Is there a way if I set my dock with:
>>>   >     KWindowSystem::setType(m_dockWindow->winId(), NET::Dock);
>>> 
>>> to be able to lower it afterwards?
>> What do you mean with "lower it"?
> 
> If I set :
> 
> KWindowSystem::setType(m_dockWindow->winId(), NET::Dock);
> 
> my dock is always on top and I can never lower it below normal 
> windows..

Well yes, that's the idea of a Dock. Of course it's on top of all 
windows. If you don't want that, don't use a dock.

On X11 KWin supports windows can cover through having a dock set to keep 
below. But that won't work on Wayland and thus I heavily recommend 
against it.

Cheers
Martin