XMoveWindow()

[Erez D]

On Thu, Mar 4, 2010 at 12:20 PM, Shachar Shemesh <shachar at shemesh.biz>wrote:

>  Erez D wrote:
>
>
>
> On Wed, Mar 3, 2010 at 5:05 PM, Shachar Shemesh <shachar at shemesh.biz>wrote:
>
>>  Erez D wrote:
>>
>>
>>>  when i write a program, i expect to get the same behaviour which
>> doesn't depend on the WM.
>> however: Traditional window managers reparent the window, and add the
>> titlebar to the parent.
>> compize on the other hand doesn't reparent the window, so the behaviour is
>> different.
>>
>>    Yes, but that's avoiding Nadav's question, which was - why is this
>> something for the program to do?
>>
>>   i have two displays i want one to be a copy of the other, so when i
> move a window on one display, i want it to move to the same position in the
> other.
>
> Then it seems to me that you are trying to move the wrong window. Why not
> run XMoveWindow not on the window you opened, but walk up the parents until
> you reach the window whose parent is root, and move that one?
>

if i put the parent at x,y -> it will place it at x,y. but that not what i
want.
if i put my original toplevel at x,y -> i would expect it to be placed at
x,y. but no, it places it's parent at x,y, which means it is placed in an
offset.

the bottom line: it doesn't matter if i put my window at x,y or it's parent
(that belongs to the WM) at x,y -> i get the same result. which is not the
result i want.

btw. if i use compiz - it doesn't have a parent. anyway, an app doesn't need
to play it differently if it have or doesn't have a WM, or to be dependant
on which WM it has.


>
>      i woudld expext the folowing line:
>> XTranslateCoordinates(...,win,root,0,0, &x, &y, ...) ;
>> XMoveWIndow(win,x,y)
>> to do nothing.
>>
>>  Then you would be wrong. The "x, y" are supposed to be relative to the
>> coordinate system in which the window reside. Even without the window
>> manager override, the above command would not work with reparented windows.
>>
>>   yes it will.
>
> Emmmm. No it won't?
>
> The x,y for a reparented window are relative to its parent. If you treat
> them as relative to the root window, your XMoveWindow will, almost always,
> move your window way too much to the right and down.
>
> And please, if you think differently, say why.
>
because it tested it (with my code).

>
>
>
>>
> why are you so angry ?
>
> I'm sorry if you got that impression. You come with the inside of the
> problem which seems unsolvable, instead of explaining what you are actually
> trying to do, which can be solved by different means. It can get frustrating
> to try and help.
>
> ok, thanks anyway.
erez.

>
> Shachar
>
> --
> Shachar Shemesh
> Lingnu Open Source Consulting Ltd.http://www.lingnu.com
>
>
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