A sign-extended 16-bit raw mouse value (-32,768 through 32,767). For wheel flags it is the Windows wheel delta (normally multiples of 120, including negative values); for X-button flags its low unsigned bits identify the X button; otherwise it is normally 0.
A sign-extended 16-bit raw mouse value (
-32,768through32,767). For wheel flags it is the Windows wheel delta (normally multiples of120, including negative values); for X-button flags its low unsigned bits identify the X button; otherwise it is normally0.