On Nov 19, 2010, at 12:35 PM, Christopher Wright wrote:
> I'd try this first:
> NSLog(@"The View is: %@ the path is %@", myQCView, qtzCompositionPath);
>
> If either of those is nil, what you're getting is expected. If they're
> non-nil, check Console.app and see if anything interesting shows up.
Thanks, I hadn't initialized the QCView yet.
This brings up a larger question: My program is a Foundation tool, so I create
my QCView with:
myQCView = [[QCView alloc] initWithFrame:NSMakeRect(100.0, 100.0, 160.0,
128.0)];
and then load and render my qtz composition.
Does QC actually do anything unless I insert the QCView into a window? I notice
that when I say:
status = [myQCView startRendering];
...there is a system process called IIDCVideoAssistant that runs at 6.5% CPU.
(My composition accesses a Firewire camera; my program reads frames through a
published output in the composition.) I don't see anything onscreen, but if
it's rendering frames, I guess I'll be able to read them?
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