* include/zmouse.h (WHEEL_DELTA): Guard against prior
definition.
(WHEEL_PAGESCROLL): Likewise.
(SPI_SETWHEELSCROLLLINES): Define, if not already done.
#define SPI_SETSOUNDSENTRY 65
#define SPI_SETSTICKYKEYS 59
#define SPI_SETTOGGLEKEYS 53
+#define SPI_SETWHEELSCROLLLINES 105
#define SPI_SETWORKAREA 47
#define SPIF_UPDATEINIFILE 1
#define SPIF_SENDWININICHANGE 2
# define WM_MOUSEWHEEL (WM_MOUSELAST + 1)
#endif
-#define WHEEL_DELTA 120
-#define WHEEL_PAGESCROLL UINT_MAX
+#ifndef WHEEL_DELTA
+# define WHEEL_DELTA 120
+#endif
+
+#ifndef WHEEL_PAGESCROLL
+# define WHEEL_PAGESCROLL UINT_MAX
+#endif
+
+#ifndef SPI_SETWHEELSCROLLLINES
+# define SPI_SETWHEELSCROLLLINES 105
+#endif
#endif /* _ZMOUSE_H */