Re: how to use DrvEnablePDEV to obtain GDIINFO of the display device?

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From: vipin (vipin_at_nospam.com)
Date: 08/07/04 

Date: Sat, 7 Aug 2004 11:32:52 +0530

The kernel filter you guys are referring to is the kernel driver's filter
and not any OS component filter for GDI.

Most relevant members of GDIINFO are exposed using GetDeviceCaps(...) win32
api which the driver fills up.

thanks
vipin

"lucy" <losemind@yahoo.com> wrote in message
news:#e3g6tAfEHA.3988@tk2msftngp13.phx.gbl...
>
> "Calvin Guan" <cguan@pleasenospam.ati.com> wrote in message
> news:%23xJKrvxeEHA.3964@TK2MSFTNGP12.phx.gbl...
> > I mean kernel GDI filter.
> >
> > I would be interested to know user mode gdi filtering.
> >
> > -
> > Calvin Guan Software Engineer
> > ATI Technologies Inc. www.ati.com
> >
> > "vipin" <vipin@nospam.com> wrote in message
> > news:uwxXxRueEHA.724@TK2MSFTNGP10.phx.gbl...
> > > Do you mean gdi32 dll filter or the kernel filter(for win32k.sys)
> itself?
> > >
> > > thanks
> > > vipin
> > >
> > >
> > > "Calvin Guan" <cguan@pleasenospam.ati.com> wrote in message
> > > news:OqjJykjeEHA.2848@TK2MSFTNGP10.phx.gbl...
> > > > Lucy,
> > > >
> > > > You need a GDI filter. And mind you that Longhorn changes the
graphic
> > > stack
> > > > quite a lot and this trick may not work.
> > > > For more information about GDI filter, you can send me email
directly.
> > > >
> > > > Calvin
> > > > -
> > > > Calvin Guan Software Engineer
> > > > ATI Technologies Inc. www.ati.com
> > > >
> > > > "lucy" <losemind@yahoo.com> wrote in message
> > > > news:eUuw%23DeeEHA.556@tk2msftngp13.phx.gbl...
> > > > > Dear Talented Gurus,
> > > > >
> > > > > 1. Do you know any method that can read the RGB pixel layout of a
> LCD
> > > > > monitor? For example, some LCD has three sub-pixels to composite a
> > > > pixel ---
> > > > > RGB, and others have BGR as subpixel layout. I know of GDIINFO
> > returned
> > > by
> > > > > DrvEnablePDEV function includes a field called
> > > > > ulPhysicalPixelCharacteristics. I am wondering how can I "load the
> > > driver
> > > > in
> > > > > your code and call DrvEnablePDEV"? How can I do that?
> > > > > But how do I get these GDIINFO? Is there any samples on this? I am
> > > really
> > > > > new to this area.
> > > > >
> > > > > Anybody know if I can obtain this information from monitor or
> drivers
> > by
> > > > > programming?
> > > > >
> > > > > Thank you very much for your help,
> > > > >
> > > > > -Lucy
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
> Hi Calvin,
>
> I've got your advice on GDI filtering, thank you so much. But still it
looks
> horrible to obtain GDIINFO. Is that the only way of getting GDIINFO
> inforamtion? Any easier one?
>
> Thanks a lot,
>
> -Lucy
>
>

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