====== CursorDeltaY ======
{{tag>cursor needs_examples}}
''fixed CursorDeltaY()''

===== Description =====
Returns the difference between the current [[:cursor]] Y position and the position during the previous tic.

Note that if the cursor is moved towards the edge of the screen in a non-wrapping mode, the position difference will be 0. To measure the velocity of the attempted mouse motion, use [[CursorMotionX]] and [[CursorMotionY]].