[jorijo]

Hi!

I have a class object Interface that only has methods to receive the input from the keyboard and this object is created in main function and I want to use his methods in different objects... my question is where to declare the pointers to the object Interface and the easy way to call the methods whenever I want?

#include "Inicia.h"

int main(){

	Interface interface;

		Inicia i;

	return 0;
}

one method of interface

string Interface::read_string( const string &mensagem )
{
	string temp;

	do 
	{
		cout << mensagem;
		cin >> temp;
	} while( temp.size( ) == 0 );
	return temp;
}

[BetaWar]

Just change:

Interface interface;

To something like so:

Interface* interface = new Interface(); // this will require a constructor or default constructor for the Interface class

As for passing the instance of the interface, that can be done like so:

void test(Interface* a){
  //Do something with interface (which is called "a" in this function)
}
int main(){
	Interface* interface = new Interface();
	test(interface);
	return 0;
}

You call object pointer functions like so:

Interface interface = new Interface(); 
interface->read_string(/*correct parameters here*/);

Hope that helps.

[jorijo]

But anytime I need a function from interface object I need to declare the pointer where I'm using it right?

[manzoor]

Not necessarily a pointer though, you can create objects of the class too and call their member functions/methods.