using Library GSM in Arduino

Using Arduino Programming Questions
1

this is example from GSM library from this "GitHub - MarcoMartines/GSM-GPRS-GPS-Shield: GSM/GPRS & GPS Shield Library for modules using SIM900/SIM908"
i test with example GSM_GPRSLibrary_AT

#include "SIM900.h"
#include <SoftwareSerial.h>
//#include "inetGSM.h"
//#include "sms.h"
//#include "call.h"

//To change pins for Software Serial, use the two lines in GSM.cpp.

//GSM Shield for Arduino
//www.open-electronics.org
//this code is based on the example of Arduino Labs.

//Simple sketch to communicate with SIM900 through AT commands.

//InetGSM inet;
//CallGSM call;
//SMSGSM sms;

int numdata;
char inSerial[40];
char datain1;
int i=0;

void setup()
{
     //Serial connection.
     Serial.begin(9600);
     Serial.println("GSM Shield testing.");
     //Start configuration of shield with baudrate.
     //For http uses is raccomanded to use 4800 or slower.
     if (gsm.begin(9600))
          Serial.println("\nstatus=READY");
     else Serial.println("\nstatus=IDLE");
};

void loop()
{
     //Read for new byte on serial hardware,
     //and write them on NewSoftSerial.
     serialhwread();
     //Read for new byte on NewSoftSerial.
     serialswread();
};

void serialhwread()
{
     i=0;
     if (Serial.available() > 0) {
          while (Serial.available() > 0) {
               inSerial[i]=(Serial.read());
               delay(10);
               i++;
          }

          inSerial[i]='\0';
          if(!strcmp(inSerial,"/END")) {
               Serial.println("_");
               inSerial[0]=0x1a;
               inSerial[1]='\0';
               gsm.SimpleWriteln(inSerial);
          }
          //Send a saved AT command using serial port.
          if(!strcmp(inSerial,"TEST")) {
               Serial.println("SIGNAL QUALITY");
               gsm.SimpleWriteln("AT+CSQ");
          } else {
               Serial.println(inSerial);
               gsm.SimpleWriteln(inSerial);
          }
          inSerial[0]='\0';
     }
}

void serialswread()
{
     gsm.SimpleRead();
}

in function gsm.SimpleRead()

void SIMCOM900::SimpleRead()
{
     char datain;
     if(_cell.available()>0) {
          datain=_cell.read();
          if(datain>0) {
               Serial.print(datain);
          }
     }
}

i want to use function _cell.read() in Main.ino , how can i do ?

2

i want to use function _cell.read() in Main.ino , how can i do ?

That depends on what the _cell instance is, in the method. If it is a private member that is not a copy of something in the .ino file, you can't.

If it is an instance, for example, of the SoftwareSerial class that you passed in to the constructor or begin method of the SIMCOM900 class, you can use the passed in instance's read() method, too.

All that commented out crap in the sketch is misleading. GET RID OF IT.