cannot access QLineEdit text in other methods of the class...

[Leoha_Zveri]

hi all I have a lil'bit of a problem) which i don't understand...
i have a class, it;s something like this:

class LoginDialog : public QDialog
{
    Q_OBJECT
 
public:
    LoginDialog(QWidget *parent = 0);
 
public slots:
 
    void loginClicked(char* uname = "test", char* pass = "pass")
    {
        //QString text = inU->text();
        //qDebug() << text
 
        char* query;
 
        query = (char*)calloc(strlen("SELECT * FROM admin WHERE adm_username='") + strlen(uname) + strlen("' AND adm_password='") + strlen(pass) + strlen("';") + 1, sizeof(char));
 
        strcat (query, "SELECT * FROM admin WHERE adm_username='");
        strcat (query, uname);
        strcat (query, "' AND adm_password='");
        strcat (query, pass);
        strcat (query, "';");
 
    };
 
private:
    PGconn* conn;
    PGresult* result;
 
    QPushButton *okButton;
    QPushButton *resetButton;
 
    QLineEdit* inU;
    QLineEdit* inP;
    QString* uText;
 
 
};

class LoginDialog : public QDialog
{
    Q_OBJECT

public:
    LoginDialog(QWidget *parent = 0);

public slots:

    void loginClicked(char* uname = "test", char* pass = "pass")
    {
        //QString text = inU->text();
        //qDebug() << text

        char* query;

        query = (char*)calloc(strlen("SELECT * FROM admin WHERE adm_username='") + strlen(uname) + strlen("' AND adm_password='") + strlen(pass) + strlen("';") + 1, sizeof(char));

        strcat (query, "SELECT * FROM admin WHERE adm_username='");
        strcat (query, uname);
        strcat (query, "' AND adm_password='");
        strcat (query, pass);
        strcat (query, "';");

    };

private:
    PGconn* conn;
    PGresult* result;
    
    QPushButton *okButton;
    QPushButton *resetButton;

    QLineEdit* inU;
    QLineEdit* inP;
    QString* uText;


};

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I have a constructor of this class, smth like this:

LoginDialog::LoginDialog(QWidget *parent)
     : QDialog(parent)
{
 
...
    inU = new QLineEdit;
    inP = new QLineEdit;
 
    inU->setText("test text");
    //*uText = inU->text();
 
...
     this->show();
};

LoginDialog::LoginDialog(QWidget *parent)
     : QDialog(parent)
{

...
    inU = new QLineEdit;
    inP = new QLineEdit;

    inU->setText("test text");
    //*uText = inU->text();
    
...
     this->show();
};

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as you see, I can set the text of the inU, or inP QLineEdits and extract it without problems (extract: inU->text(); and insert: inU->setText("test text") in the constructor, but I cannot access it from other methods (like loginClicked...)... Am I doing something wrong? please someone help... how it can be done?

[spirit]

include header, like this

#include <QLineEdit>
 
class LoginDialog : public QDialog
...

#include <QLineEdit>

class LoginDialog : public QDialog
...

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[Leoha_Zveri]

it worked! thanks a lot!!!
by why? I have included the <QtGui> header, i thought it has all i need, no?