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Re: Dual head question


From: Stefan Boehringer
Subject: Re: Dual head question
Date: Tue, 24 Apr 2001 19:52:38 +0200

Hello,

systems which I know of (NeXT, Mac) handle multiheading by drawing windows on both screens partially if a window floats from one screen to the other. Therefor a window would be assigned to more than one screen at some point in time.

Am I missing something?

BTW, I wonder wether DPS supports multiheading by itself. If no multiheading is supported by the backend then a window has to be drawn on both screens manually which may force a duplication of the window object (off screen buffers...). Does anybody know how this is handled on OPENSTEP?
Best wishes,

	Stefan

Adam Fedor wrote:
> Richard Frith-Macdonald wrote:
> > 
> > On Monday, April 23, 2001, at 12:16 PM, address@hidden wrote:
> > 
> > > I have a sun (sparc) workstation with dual head configuration. The X
> > > server is configured as two screen server (it is impossible to shift
> > > window from one screen to another by mouse).
> > >
> > > I would like to know if it is possible to shift open window (NSWindow)
> > > from one screen to another within my application.
> > >
> > > Thank you for any suggestions.
> > 
> > Not as far as I know.  of course if you would like to write the code ...
> > 
> 
> I don't think there is either, although it looks like it wouldn't be
> that hard. The problem now is there is no front-end method to change the
> window screen in the backend (in fact, no way to even specify the screen
> - the screen parameter is currently ignored when creating an NSWindow.).
> It should be easier enough to add this - perhaps something like
> DPSwindowscreen(int screen).
> 
> Dual head code is not very well developed in GNUstep, so perhaps there
> are more problems that I don't see.
> 
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