Using sqlite3 in visual c++

I am using visual studio 2015 and i want to use sqlite3 with it, i have managed to integrate sqlite3 into it, but i can only use it through native c style, i cannot use sqlite using classes as we do in c++. There is a table test in my database which contain values (id int , id1 int , name string) For example this program runs fine

void forprinting(string a)
{
    cout  << a<<"\n";
}
 int callback(void *NotUsed, int argc, char **argv, char **azColName) {
    int i;
    string testing;
    string test2;
       for (i = 0; i<argc; i++) 
       {
          testing = testing + azColName[i];//irrelevant
          test2 += argv[i];
       }
    forprinting(test2);
    printf("\n");
    return 0;
}



int main()
{
    char *zErrMsg = 0;
    sqlite3 *db;
    int rc;
    rc = sqlite3_open("DATA.db", &db);
    char *data;
    const char *sql;
    sql = "SELECT * FROM test;";
    sqlite3_exec(db, sql, callback, 0, &zErrMsg);
     sqlite3_close(db);
    system("pause");
    return 0;
}

The output of this program is 0 0 test which is fine but when i try to implement the same logic using classes i get the error here

#include <iostream>
#include <stdio.h>
using namespace std;
void forprinting(string a) {
    cout << a << "\n";
} 
class testingSqlite {
    public :
    int callback(void *NotUsed, int argc, char **argv, char **azColName) {
        int i;
        string testing;
        string test2;
        for (i = 0; i<argc; i++) {

            testing = testing + azColName[i];
            test2 += argv[i];
        }
        forprinting(test2);
        printf("\n");
        return 0;
    }
    void initiate() {
        char *zErrMsg = 0;
        sqlite3 *db;
        int rc;
        rc = sqlite3_open("DATA.db", &db);
        char *data;
        const char *sql;
        sql = "SELECT * FROM test;";
        sqlite3_exec(db, sql, callback, 0, &zErrMsg);
        sqlite3_close(db);

    }
};
int main()
{
    testingSqlite test1;
    test1.initiate();
    system("pause");
    return 0;
}

I know its a bad practice to define functions in class but i was in hurry. And it is giving

Error C3867 'testingSqlite::callback': non-standard syntax; use '&' to create a pointer to member



Error (active)      argument of type "int (testingSqlite::*)(void *NotUsed, int argc, char **argv, char **azColName)" is incompatible with parameter of type "int (*)(void *, int, char **, char **)"

I tried to change the function arguments to fix it but nothing yet works.