23 static void sdl_mousewheel_read(lv_indev_t * indev, lv_indev_data_t * data);
45     lv_indev_t * indev = lv_indev_create();  in lv_sdl_mousewheel_create()  local
46     if(indev == NULL) {  in lv_sdl_mousewheel_create()
51     lv_indev_set_type(indev, LV_INDEV_TYPE_ENCODER);  in lv_sdl_mousewheel_create()
52     lv_indev_set_read_cb(indev, sdl_mousewheel_read);  in lv_sdl_mousewheel_create()
53     lv_indev_set_driver_data(indev, dsc);  in lv_sdl_mousewheel_create()
55     lv_indev_set_mode(indev, LV_INDEV_MODE_EVENT);  in lv_sdl_mousewheel_create()
56     lv_indev_add_event_cb(indev, release_indev_cb, LV_EVENT_DELETE, indev);  in lv_sdl_mousewheel_create()
58     return indev;  in lv_sdl_mousewheel_create()
65 static void sdl_mousewheel_read(lv_indev_t * indev, lv_indev_data_t * data)  in sdl_mousewheel_read()  argument
67     lv_sdl_mousewheel_t * dsc = lv_indev_get_driver_data(indev);  in sdl_mousewheel_read()
76     lv_indev_t * indev = (lv_indev_t *) lv_event_get_user_data(e);  in release_indev_cb()  local
77     lv_sdl_mousewheel_t * dsc = lv_indev_get_driver_data(indev);  in release_indev_cb()
79         lv_indev_set_driver_data(indev, NULL);  in release_indev_cb()
80         lv_indev_set_read_cb(indev, NULL);  in release_indev_cb()
104     lv_indev_t * indev = lv_indev_get_next(NULL);  in lv_sdl_mousewheel_handler()  local
105     while(indev) {  in lv_sdl_mousewheel_handler()
106         if(lv_indev_get_read_cb(indev) == sdl_mousewheel_read) {  in lv_sdl_mousewheel_handler()
108             if(disp == NULL || lv_indev_get_display(indev) == disp) break;  in lv_sdl_mousewheel_handler()
110         indev = lv_indev_get_next(indev);  in lv_sdl_mousewheel_handler()
113     if(indev == NULL) return;  in lv_sdl_mousewheel_handler()
114     lv_sdl_mousewheel_t * dsc = lv_indev_get_driver_data(indev);  in lv_sdl_mousewheel_handler()
139     lv_indev_read(indev);  in lv_sdl_mousewheel_handler()