Re: GDI questions...
From: Lloyd Dupont (ld_at_NewsAccount.galador.net)
Date: 07/08/04
- Next message: Samson Fu: "Re: Virtual Monitor in VB.Net?"
- Previous message: Jim Hubbard: "Re: Virtual Monitor in VB.Net?"
- In reply to: Jim Hubbard: "Re: GDI questions..."
- Next in thread: Christoph Lindemann: "Re: GDI questions..."
- Messages sorted by: [ date ] [ thread ]
Date: Thu, 8 Jul 2004 13:37:59 +1000
no thanks, I'm not much into driver developement myself :)
I just found this interesting, as a... demo.
but good luck!
"Jim Hubbard" <reply@groups.please> wrote in message
news:nr0Hc.16721$285.16713@bignews6.bellsouth.net...
> I will look into studying C/C++....especially if I can grasp it in only a
> month.
>
> If you'd like this source code, I can email it to you - send your request
to
> jFiEm__hEuGbJbBaYrLdE@hotmail.com (ignore all UPPERCASE letters in the
email
> address and that's 2 underscores between jim and hubbard.)
>
> Thanks for your post.
>
> And props to Christoph for the link! I have the 2003 SDK, but hadn't seen
> this link before.
>
> The one thing that concerns me is that the article says "Note In Windows
> 2000 and later, the mirror driver's clip region must include the primary
> display device." I take this to mean that the clip region for 2000 and up
> must include the whole desktop.
>
> I think that this means that I would not be able to limit the mirroring to
> just one window, unless that window covered the whole screen.
> Disappointing.
>
> I'll go get a couple of books today, and let you know how I make out in
> about a month.
>
> Thanks again!
>
>
> "Lloyd Dupont" <ld@NewsAccount.galador.net> wrote in message
> news:%23QUpaaHZEHA.808@tk2msftngp13.phx.gbl...
> > woaw, amazing.
> >
> > BTW Jim, I didn't see the source yet, but it's a relativaly new article.
> > I'll bet you will be able to download a compilable sample in a couple of
> > days.. (weeks ?) or you could contact microsoft about where are the
> sources
> > for this article ?
> > I had found them very responsive !
> > and then, with the source, the problem would be almost solved, wouldn't
it
> ?
> >
> > And if you want to learn C/C++, at work, starting by C, it takes no more
> > than a couple of weeks (2~3), don't be so impress, C is easy! and C++ is
> not
> > that much harder than C!
> >
> > "Jim Hubbard" <reply@groups.please> wrote in message
> > news:l9RGc.13775$285.4831@bignews6.bellsouth.net...
> > > Mirror display drivers are doing exactly that - capturing (or, more
> > > precisely, duplicating) the GDI calls to the main screen.
> > >
> > > You are right to point out that VB.Net is not appropriate for the job.
> > But,
> > > the samples you have pointed to do me no real good - as I am C/C++
> > > illiterate.
> > >
> > > I have (for better or worse) dedicated myself to being the best
> VB/VB.Net
> > > programmer I can be. At this point, I can say I wish I had spent some
> > time
> > > learning C++.
> > >
> > > Acknowledging the fact that it would take me a year or more to gain
the
> > > skills and knowledge to write such a mirror device, it is more prudent
> to
> > > hire someone to write what I need.
> > >
> > > Alas, I cannot find anyone with the skills to do this that also has
the
> > time
> > > to take on another project.
> > >
> > > My search continues for a competent, proven programmer or company with
> the
> > > skills, time and will to take on this job.
> > >
> > > Know anyone? ( I have tried Guru.com and Rent-A-Coder with no
> success.)
> > >
> > >
> > >
> > > "Christoph Lindemann" <clindemann@newsgroups.nospam> wrote in message
> > > news:8D19321E-724C-4C84-A32D-AD9A54DC2216@microsoft.com...
> > > > Hi Jim,
> > > >
> > > > I do not think intercepting GDI calls is the right sollution,
> especially
> > > because dll hooking/interception is mainly provided for debugers, and
is
> > by
> > > some programs considdered hostile.
> > > >
> > > > A better way would be to build a mirror display driver. You can find
> > > samples and documentation for this in the Windows DDK:
> > > >
> > >
> >
>
http://msdn.microsoft.com/library/en-us/graphics/hh/graphics/dpyddi_b57d0d90-5dae-447d-825f-7d4a05e1e6d0.xml.asp
> > > >
> > > > Also, I do not think VB.NET is the right tool to use, althoug it
might
> > be
> > > possible, it would require extensive headerfile conversions and nasty
> > hacks.
> > > >
> > > > Best regards,
> > > > Christoph Lindemann
> > > >
> > > > "Jim Hubbard" wrote:
> > > >
> > > > > Can you use VB.Net to set a system-wide hook to intercept all GDI
> > calls
> > > from
> > > > > GDI to the system's hardware? I want to intercept all GDI
> > instructions
> > > sent
> > > > > to the system's hardware layer.
> > > > >
> > > > > As I understand it (and I may be missing something) GDI sends
> > > instructions
> > > > > to a DEVICE (which can be a printer or display unit or any device
> for
> > > which
> > > > > a device context can be obtained) and the device does the drawing.
> > > > >
> > > > > Also...if anyone can tell me how the dual (actually up to 9)
monitor
> > > display
> > > > > thing works - starting with Win98 - that'd be fantastic. If I
knew
> > how
> > > that
> > > > > works, I think it'd help me in my screen captures.
> > > > >
> > > > >
> > > > >
> > >
> > >
> >
> >
>
>
- Next message: Samson Fu: "Re: Virtual Monitor in VB.Net?"
- Previous message: Jim Hubbard: "Re: Virtual Monitor in VB.Net?"
- In reply to: Jim Hubbard: "Re: GDI questions..."
- Next in thread: Christoph Lindemann: "Re: GDI questions..."
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
