CODEWITHSUNDEEP
c++qt
alireza sanaee
alireza sanaee

Reputation: 39

connecting SLOT error

I have file programm.cpp that control all of my connecting page but when I want to connect one of programm.cpp functions to other push button from another class I gave an error

this is the code :

QObject::connect(LoginPage->Buttons->button(QDialogButtonBox::Ok),SIGNAL(clicked()),this,SLOT(check_user()));

and this is the error :

/home/alireza/Documents/qt/ALIREZA/programm.cpp:19: error: no matching function for call to 'QObject::connect(QPushButton*, const char*, programm* const, const char*)'

& also this is the function declaration that completely commented :

void programm::check_user()
{
/*QString user = LoginPage->EditPassWord->displayText();
QString password = LoginPage->ComboUsername->currentText();

QSqlQuery myquery("SELECT Username FROM TeacherUsers");
while(myquery.next())
{
    QString Username = MyDB->query->value(0).toString();
    QString pass = MyDB->query->value(1).toString();
    qDebug()<<Username << "   " << pass ;
    //if (Username == user)
}*/
}

programm.h :

#ifndef PROGRAMM_H
#define PROGRAMM_H
#include "login.h"
#include "mainwindow.h" 
#include "nazem.h"
#include "database.h"
#include <QtGui>
#include <QtCore> 
#include <QObject>

class programm
{
Q_OBJECT
public:
    programm();
    Login *LoginPage;
    MainWindow *MainWindowPage;
    nazem *nazm;
    database *MyDB;
public slots :
    void check_user();
};

#endif // PROGRAMM_H

Upvotes: 0

Views: 119

Answers (1)

cmannett85
cmannett85

Reputation: 22366

Like I said in comments... You haven't derived from QObject and you haven't included the Q_OBJECT macro.

Read the docs.

Upvotes: 2

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