- /*! The step which the client is currently in for animating iconify and
- restore.
- 0 means that it is not animating. FRAME_ANIMATE_ICONIFY_STEPS is the
- first step for iconifying, and -FRAME_ANIMATE_ICONIFY_STEPS is the
- forst step for restoring. It counts towards 0 either way. Visually,
- +x == -(FRAME_ANIMATE_ICONIFY_STEPS-x+1)
+ /*! Is the frame currently in an animation for iconify or restore.
+ 0 means that it is not animating. > 0 means it is animating an iconify.
+ < 0 means it is animating a restore.