Re: How does Pixie work?
Re: How does Pixie work?
- Subject: Re: How does Pixie work?
- From: Thomas Jahnsen <email@hidden>
- Date: Thu, 4 Jul 2002 12:23:07 +1000
Just yesterday I checked out some little sample app that displayed the
cursor area of the screen in a little window. It was in the
Multiprocessor SDK at the July ADC DVD, but would probably be in the SDK
off the web too.
It is likely to be in Carbon C however, but in the end, it's the
functionality of the program that counts, not what API is used.
-Thomas Jahnsen
email@hidden
On Thursday, July 4, 2002, at 09:32 AM, Stonewall Ballard wrote:
How does Pixie get the screen bits under the cursor?
I was told that you could use an invisible window to read the screen,
presumably by calling something like:
[[NSBitmapImageRep alloc] initWithFocusedViewRect: myFrame]
I've made a very nice transparent window by setting its opacity to NO,
and
filling its content view with clearColor, but the image I get from the
above
operation is just gray.
Strangely, some other code I've seen for grabbing the screen by
covering it
with a large transparent window and doing the above operation doesn't
work
on my Macs.
For example, see <http://borkware.com/quickies/one?topic=Graphics>. This
produces a "background pinstripe" image on my TiBook and my desktop G4,
but
apparently, it works on other systems. Is this related?
TIA for any help, esp. pointers to sample code.
- Stoney
--
Stonewall Ballard
email@hidden http://www.sb.org/stoney/
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