Access Memory Address of a QT made viewer?

[Nfrancisj]

Hi friends,

I'm trying to create a little snapshot tool for Nuke 9. Nuke is a visual fx compositing software built using Qt.
So if you'd kindly refer to the attached image, Nuke has a Viewer, which has a few switches and button, and more importantly a timeline to scrub the image sequence that's currently being viewed. This viewer stores the current frame into memory as the user changes frame.

What I would like to do is get the memory location of the image at the current frame. Is there a way to do that? I've been reading up on Qt's Qtimeline, and the Caching options, but I can't seem to find anything on how to access the cached location in memory. Nuke does have an API which I'm currently lost in, but I'm hoping someone knows a quick way.


Cheers!