Have you tried putting both the movie view, and a custom overlay inside of a 
layer-backed view?

The more traditional route I think is to add a child window for the overlay, 
keeping its size/placement in sync with the parent window

Sent from my iPad

On 4 Aug 2011, at 08:13 PM, julius <jul...@juliuspaintings.co.uk> wrote:

> Hi,
> I've been looking for a way to draw on top of a QT movie whose display 
> dimensions the user can vary using the window's resize handle(?) while it is 
> running.
> 
> I have previously stepped through the individual frames but the result was 
> jerky.
> I obtained a smoother result by first converting the movie into an image 
> sequence but the time required to perform the convertion and memory use are 
> unacceptable.
> 
> The most promising suggestion I've found so far is the (undocumented) 
> delegate method in QTMovieView.h
> - (CIImage *)view:(QTMovieView *)view willDisplayImage:(CIImage *)image
> 
> Some discussions on various forums circa 2008, suggest the method had been 
> used successfully in the past but it's not worked for me.
> XCode seems not to recognise it.
> 
> Is the method no longer extant?
> Should I look to try another approach e.g. Core Video?
> I use XCode 3.2.6 
> 
> Julius
> 
> http://juliuspaintings.co.uk
> 
> 
> 
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