+void HandleWheelEvent(WheelEvent *event)
+{
+ int button_nr;
+
+#if DEBUG_EVENTS_WHEEL
+#if 1
+ Error(ERR_DEBUG, "WHEEL EVENT: mouse == %d, x/y == %d/%d\n",
+ event->which, event->x, event->y);
+#else
+ // (SDL_MOUSEWHEEL_NORMAL/SDL_MOUSEWHEEL_FLIPPED needs SDL 2.0.4 or newer)
+ Error(ERR_DEBUG, "WHEEL EVENT: mouse == %d, x/y == %d/%d, direction == %s\n",
+ event->which, event->x, event->y,
+ (event->direction == SDL_MOUSEWHEEL_NORMAL ? "SDL_MOUSEWHEEL_NORMAL" :
+ "SDL_MOUSEWHEEL_FLIPPED"));
+#endif
+#endif
+
+ button_nr = (event->x < 0 ? MB_WHEEL_LEFT :
+ event->x > 0 ? MB_WHEEL_RIGHT :
+ event->y < 0 ? MB_WHEEL_DOWN :
+ event->y > 0 ? MB_WHEEL_UP : 0);
+
+#if defined(PLATFORM_WIN32) || defined(PLATFORM_MACOSX)
+ // accelerated mouse wheel available on Mac and Windows
+ wheel_steps = (event->x ? ABS(event->x) : ABS(event->y));
+#else
+ // no accelerated mouse wheel available on Unix/Linux
+ wheel_steps = DEFAULT_WHEEL_STEPS;
+#endif
+
+ motion_status = FALSE;
+
+ button_status = button_nr;
+ HandleButton(0, 0, button_status, -button_nr);
+
+ button_status = MB_RELEASED;
+ HandleButton(0, 0, button_status, -button_nr);
+}
+