On 18 Oct 2008, at 8:48 am, Russ wrote:
My app is drawing acceptably (for now) the first time, but the
screen isn't updating after anything happens. I am calling
setNeedsDisplay:YES on the affected NSViews and their drawRect
routines are getting called, but it seems the results aren't being
composited onto the screen subsequently. If I resize the window
smaller and larger again, the exposed portion shows the correct
portion. Just driving it with a few menu operations for now. I have
a subclassed NSView but it is very minimal to store a little extra
information and pass along the drawRect.
Anything else I'm missing that's needed to enable the new images to
make it to the screen? I have a normal event loop NSApp run going,
things would be going well if the redraws were visible. Thanks.
Are you mistaking the rect parameter to drawRect: for your view's
bounds? Common mistake, and could easily produce the symptoms you
describe.
However, if you were to actually, you know, post your code, the error
could probably be spotted instantly.
Seems quite a few people here lately enjoy the game of "twenty
questions". Enjoyable as that can be, it's possibly not the most
efficient way to get problems identified. ;-)
hth,
Graham
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