We would like to get the flip property of an image frame..
It can be in a similar way to the way we get the rotation by passing the matrix:
AIAPI void (*AIRealMatrixGetRotate) ( const AIRealMatrix *m, AIReal *angle );

If this is not possible, then as a workaround we can get some notifies, for example: kFlipHorizontalNotifier or kFlipVerticalNotifier in order to know that the user selects to flip the image.

Thanks,
Chen