lv_obj_add_event_cb(btn, event_cb, LV_EVENT_ALL, info_label);// btn的事件,并传入标签对象 } 不同的显示状况: 圆弧 这个百分值问题,就用上了事件 staticvoidvalue_changed_event_cb(lv_event_t* e); voidlv_example_arc_1(void) { lv_obj_t* label =lv_label_create(lv_scr_act()); /*...
The "lvgl-release-v8.3" {either-> down loaded as a zip only or cloned} still dose not have "clip_area" defined inside the {lv_obj_draw_part_dsc_t [struct] } as of the of 2-11-2023. The struct is int the "lv_obj_draw.h" header inside the ...
lv_obj_clear_flag(mask_parent,LV_OBJ_FLAG_HIDDEN); } }staticvoidmask_obj_hide(void){if(lv_obj_has_flag(mask_parent,LV_OBJ_FLAG_HIDDEN)==false){ lv_obj_add_flag(mask_parent,LV_OBJ_FLAG_HIDDEN); } }//取消 回调函数staticvoidevent_cb_btn_cancel(lv_event_t *e) {//lv_obj_t * ...
LV_EVENT_DRAW_POST_END, /**< Finishing the post draw phase (when all children are drawn)*/ LV_EVENT_DRAW_PART_BEGIN, /**< Starting to draw a part. The event parameter is `lv_obj_draw_dsc_t *`. */ LV_EVENT_DRAW_PART_END, /**< Finishing to draw a part. The event parameter...
Draw 事件:Main 绘制开始,绘制中,完成绘制,Post 绘制等; Special 事件:刷新事件等; Others:Object 被删除,Child 被删除,等等; lvgl控件与事件的绑定接口为lv_obj_set_event_cb(btn1, event_handler); 而事件的发送函数为 lv_res_t lv_event_send(lv_obj_t * obj, lv_event_t event, const void * da...
LV_EVENT_DRAW_POST_END,/**< Finishing the post draw phase (when all children are drawn)*/ LV_EVENT_DRAW_PART_BEGIN,/**< Starting to draw a part. The event parameter is `lv_obj_draw_dsc_t *`. */ LV_EVENT_DRAW_PART_END,/**< Finishing to draw a part. The event parameter is...
static lv_disp_drv_t disp_drv; lv_disp_drv_init( &disp_drv ); disp_drv.hor_res = LCD_W; disp_drv.ver_res = LCD_H; disp_drv.flush_cb = my_disp_flush; disp_drv.draw_buf = &draw_buf; lv_disp_drv_register( &disp_drv ); ...
static lv_disp_drv_t disp_drv; lv_disp_drv_init( &disp_drv ); disp_drv.hor_res = LCD_W; disp_drv.ver_res = LCD_H; disp_drv.flush_cb = my_disp_flush; disp_drv.draw_buf = &draw_buf; lv_disp_drv_register( &disp_drv ); ...
Embedded graphics library to create beautiful UIs for any MCU, MPU and display type. - lvgl/src/core/lv_obj_draw.c at 7672847ce325e909981582b4153993025da7fe50 · lvgl/lvgl
§ 部分:LV_PART_KNOB § draw_area:旋钮的面积 -rect_dsc: 按键 · LV_KEY_RIGHT/UP 将值增加一。 · LV_KEY_LEFT/DOWN 将值减一。 Example Simple Arc #include"../../lv_examples.h"#ifLV_USE_ARC && LV_BUILD_EXAMPLESvoidlv_example_arc_1(void){/*Create an Arc*/lv_obj_t* arc = ...