Protect local PointerReason_WheelChange definition
We want to add PointerReason_WheelChange to Hdr:Pointer, but doing so will make USBDriver upset. Prematurely add a #ifndef guard to prevent this.
!NoTag
We want to add PointerReason_WheelChange to Hdr:Pointer, but doing so will make USBDriver upset. Prematurely add a #ifndef guard to prevent this.
!NoTag