Re: modal windows vs. WM_TRANSIENT_FOR

[Matthias Clasen <maclas gmx de>]

On Tue, 2002-12-17 at 00:50, Havoc Pennington wrote:
> On Tue, Dec 17, 2002 at 12:37:59AM +0100, Matthias Clasen wrote: 
> > It seems that this (setting WM_TRANSIENT_FOR to root) is a bug in old
> > gtk versions which has found its way into a standard. 
> > 
> 
> I don't think it originates with GTK, it's older than that.  I'm
> pretty sure I've seen it in non-GTK apps.
> 
> I believe the basic reason for setting WM_TRANSIENT_FOR to root was to
> mark the semantic type as a dialog without having to actually specify
> the parent.
>  
> > "If the WM_TRANSIENT_FOR hint is set to another toplevel window, the 
> > dialog is modal for that window; if WM_TRANSIENT_FOR is not set or set
> > to the root window the dialog is modal for its window group."
> 
> Yup.
> 

If nobody disagrees soon, I'll commit the change this weekend. 

Matthias