How to use string from a class in other classes

[elias174]

hi, im new, i have this code



QString cuenta;
cuenta=ui->lineEdit->text();



this string its declared in public members in a Class names log, i need use this string in other classes, please help me, im novice in C++ and new in QT, thanks in advance, greetings

[Santosh Reddy]

Then you can post questions in General Programming Forum...


class LogClass {
public:
QString textString;

QString getTextString(void) const;
};

QString LogClass::getTextString(void) const
{
return textString;
}

function()
{
LogClass log;

// Both does the same
QString text_1 = log.getTextString();
QString text_2 = log.textString
}

[elias174]

thnks, i was try this but i have a error in the compilation, i did this:


MainWindow.cpp

#include "LogClass.h"


log login;
QString showme;
showme=login.cuenta;
ui->mostrarcuenta->setText(showtime);

the error its this:

login was not declarate in this scope

thnks

[Santosh Reddy]

show the log class definition, also I guess there should be more errors, post them too

[elias174]

ok, this its:


#ifndef LOG_H
#define LOG_H

#include <QMainWindow>
#include <QWidget>
#include "mainwindow.h"
#include <QSqlQuery>
#include <QKeyEvent>

namespace Ui {
class log;
}

class log : public QMainWindow
{
Q_OBJECT

public:
explicit log(QWidget *parent = 0);


QString cuenta;
~log();

private:
Ui::log *ui;
MainWindow m;

private slots:
// void funcion::keyPressEvent( QKeyEvent* );
void on_pushButton_clicked();
};

#endif // LOG_H


then, i call the Qstring cuenta so:

this code is located in mainwindow.cpp

log login;
QString showme;
showme= login.cuenta;



the compiler does not show other error

[Santosh Reddy]

first point, don't use a standard name like log (it can conflict with log() function in math.h), use a different class name.

next the error might related to Ui::log class, not ::log class (note the scope), try including "ui_log.h" (or whatever is the ui file name is) in mainwindow.cpp