[shell-coding] Re: owner/owned zorder

On Thu, 29 May 2003 11:42:19 -0700, rabidcow@xxxxxxxx wrote:
>
>On Thu, 29 May 2003 20:14:13 +0200 "xnowfall"
><xnowfall@xxxxxxxxxxxx> writes:
>>>On Thu, 29 May 2003 16:42:07 +0200 "xnowfall"
>><xnowfall@xxxxxxxxxxxx>
>>>writes:
>>>>litestep's main window isn't owned or parented to anything, but
>>>>modules like desktop2, label and layercuts are owned by it.
>>>
>>>Is there any reason to do that?
>>>
>>>If having the windows owned by the litestep window causes the
>>>problem, why not just avoid setting the owner?
>>
>>don't know if that's why it was originally added, but unowned
>>topmost windows with a caption show up in the taskmanager
>
>Ah, I see.  I always solved that by not setting a caption, which I
>imagine would work in most cases.  (although it might be appropriate
>to use it for label, but I don't know)
>
>>>>- the litestep window should possibly use something like
>>>>(((WINDOWPOS *)lParam)->flags |= SWP_NOSIZE | SWP_NOMOVE |
>>>>SWP_NOZORDER | SWP_NOOWNERZORDER) for WM_WINDOWPOSCHANGING. this
>>>>to let it protect the zorder itself in case some modules don't
>>>>follow the rules above
>>>
>>>The litestep window should probably be created with HWND_MESSAGE,
>>>which would avoid zorder all together (on systems where it's
>>>supported)
>>
>>it couldn't then be the owner of labels/layercuts etc without them
>>becomming message windows too though, right?
>
>Yeah probably, compatibility vs correctness.  :/
>
>Intercepting WM_WINDOWPOSCHANGING always seemed inelegant to me.
>Sometimes it's necessary, but I would prefer to avoid it where it
>isn't.
>
>Failing that, the litestep window should be always on top and the
>desktop window should not be owned by it.  On-bottom windows are
>children of the desktop and won't show up in the task list anyway.
>(how do owner and parent interact with zorder?)
>
>-rabidcow
>
>
>
>
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As I'm not a coder I can't really contribute much to this discussion,
but as for how parent interacts with Zorder I can say that zordering
doesn't seem to work at all in shortcut3 unless all shortcuts are
parented to the desktop. Otherwise, regardless of their settings,
they come to the top when they receive focus.


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