Re: Quick question about spec

[Tim Janik <timj gtk org>]

On Mon, 21 Feb 2000, Bradley Tyson Hughes wrote:

> On Mon, 21 Feb 2000, you wrote:
> > On Mon, 21 Feb 2000, Bradley Tyson Hughes wrote:
> > 
> > > On Mon, 21 Feb 2000, Tim Janik wrote:
> > > 
> > > [snip]
> > > 
> > > > yes, basically. it is also important for toolkits to figure the position of their
> > > > wm frame window, so they can store/restore window positions, since an unmapped window
> > > > moved to x,y will be mapped at x+frame_width,y+frame_height.
> > > 
> > > it should be easy... XTranslateCoordinates can do this... 
> > 
> > i'm sorry, i don't follow. the coordinates required here are not the window's
> > x,y but the frame's x,y. gtk contains gdk_window_get_deskrelative_origin() for exactly
> > this purpose. and figuring the frame requires the (virtual) root window to be identified.
> 
> heh... sorry... i probably should have worded this differently...
> 
> you can use XTranslateCoordinates to find the frame coordinates (by traversing
> up the window tree to the root window)
> 
> in cases where there is a virtual root window (more specifically... one that
> doesn't reside at 0,0) then this method can't be used... and some other way
> would have to be devised

you got it. that's exactly what this property is for: identifying the virtual root
window.

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ciaoTJ