Alexander Savushkin's questions

有一个库文件和一个用户函数appUserFunc()。如何将此函数传递给数组单元格commands[]。

#include "lib.h"

void appUserFunc(){ cout << "appUserFunc" << endl;}

int main()
{


    runTask();
}

文件 lib.h

#ifndef LIB_H
#define LIB_H

#include <iostream>
using namespace std;

void appSystemFunc(){ cout << "appSystemFunc" << endl;}


struct App
{   
    int num;
    string text;
    void (*f)(void);
};

App commands[]
{
    {1, "app system", appSystemFunc},
    {1, "app system", appUserFunc},
};

void runTask()
{
    for(App comm : commands)
    {
        comm.f();
    }
}

#endif

gfx.renderFF(message.info("Hello!", "I am console,", "how are you?"));

轮到时

void renderFF( void (*draw_fn)(String &a, String &b, String &c) )
{
  uint32_t time;
  time = millis() + 10;

  do {
    u8g2.clearBuffer();
    draw_fn();
    u8g2.sendBuffer();
  } while ( millis() < time );
}