fix typo s/Roration/Rotation/
#define PTRFLAGS_HWHEEL 0x0400
#define PTRFLAGS_WHEEL 0x0200
#define PTRFLAGS_WHEEL_NEGATIVE 0x0100
-#define WheelRorationMask 0x01FF
+#define WheelRotationMask 0x01FF
#define PTRFLAGS_MOVE 0x0800
#define PTRFLAGS_DOWN 0x8000
#define PTRFLAGS_BUTTON1 0x1000
