/** * @example CompButton.ino * * @par How to Use * Show how to use API of class NexButton. * * @author Wu Pengfei (email:) * @date 2015/7/10 * @copyright * Copyright (C) 2014-2015 ITEAD Intelligent Systems Co., Ltd. \n * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. */ #include "Nextion.h" NexButton b0 = NexButton(0, 2, "b0"); char buffer[100] = {0}; NexTouch *nex_listen_list[] = { &b0, NULL }; void b0PopCallback(void *ptr) { uint16_t len; uint16_t number; NexButton *btn = (NexButton *)ptr; dbSerialPrintln("b0PopCallback"); dbSerialPrint("ptr="); dbSerialPrintln((uint32_t)ptr); memset(buffer, 0, sizeof(buffer)); btn->getText(buffer, sizeof(buffer)); number = atoi(buffer); number += 1; memset(buffer, 0, sizeof(buffer)); //itoa(number, buffer, 10); sprintf(buffer,"%d",number); btn->setText(buffer); } void setup(void) { nexInit(); b0.attachPop(b0PopCallback, &b0); dbSerialPrintln("setup done"); } void loop(void) { nexLoop(nex_listen_list); }