XMoveWindow()

[Shachar Shemesh]

Erez D wrote:
>
>
> On Wed, Mar 3, 2010 at 5:05 PM, Shachar Shemesh <shachar at shemesh.biz 
> <mailto: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?

>>     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.
>
>
>
> 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.

Shachar

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

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