Not easily. Like the Aero/Glass interface in Vista, the Mac can have
applications draw into a texture in offscreen memory. The textures are
then composited into a screen image using 3D graphics hardware on every
refresh. Thus, the unified image you see as your desktop might not
actually exist anywhere in real memory.
I've recently been involved as an observer in a project similar to what
you ask. I was not sufficiently versed in the terminology to understand
the mechanism, but I was smart enough to understand that it is possible,
although it is a guru-level operation. You need to find a Mac guru to
advise you with this.
ยทยทยท
On Tue, 17 Jul 2007 09:35:53 -0500, Cody Precord <codyprecord@gmail.com> wrote:
It seems that the ScreenDC in wxMac uses a transparent overlay of the
screen for drawing on.Is anyone aware of a workaround or way to get access to the buffer
that the actual (desktop)screen is drawn in so that I can blit from
there into a MemoryDC and get bitmap information from the desktop?
--
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.