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Re: Bilt HIView to Offscreen bitmap


On Mar 13, 2007, at 11:43 AM, Jeff Sparks wrote:

Eric Schlegel wrote:

Jeff Sparks wrote:

Unfortunately, I still have the same problem when I replace my code
with the two functions provided in link: an all-white bitmap (255 255
255 ...) instead of the window's contents. 

Sounds like you're getting the drawing of the window content view,
but not of anything embedded inside it. What other views do you have
in this window?


There are three views: root view, content view, and web view, which
are set up per /Developer/Examples/WebKit/SimpleCarbonWeb/WebWindow.m,

I'd have to actually debug this to be sure, but I bet that the web view is not going to work with CreateOffscreenImage because it's really an NSView embedded inside an HIView, and it uses AppKit's drawing code rather than Carbon's. If that's the case, there's probably no way to get this to work the way you want. You might be able to capture the window bits by just going through QuickDraw to get the window's port's buffer, and then creating a CGImage from those bits.

-eric



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 >Re: Bilt HIView to Offscreen bitmap (From: Jeff Sparks <email@hidden>)



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