Connection QPushButton to a Function in main.cpp
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Hello,
I have a main.cpp with a window and also a QPushButton.@#include <QApplication>
#include <QPushButton>
#include <QtWidgets>
#include <kfz.h>
#include <diagramm.h>int main(int argc, char* argv[])
{QApplication app(argc, argv); QWidget *window = new QWidget; QGridLayout *box = new QGridLayout(window);
...
QObject::connect(button, SIGNAL(clicked()),&app, SLOT(onbuttonclicked()));
...
@
I have another class Diagramm.cpp
@#include "diagramm.h"
#include "ui_diagramm.h"Diagramm::Diagramm(QWidget *parent) :
QDialog(parent),
ui(new Ui::Diagramm)
{
ui->setupUi(this);
}Diagramm::~Diagramm()
{
delete ui;
}void Diagramm::onbuttonclicked()
{
Diagramm dia;
dia.setModal(true);
dia.exec();
}
@and Diagramm.h
@#ifndef DIAGRAMM_H
#define DIAGRAMM_H#include <QDialog>
namespace Ui {
class Diagramm;
}class Diagramm : public QDialog
{
Q_OBJECTpublic:
explicit Diagramm(QWidget *parent = 0);
~Diagramm();
public slots:
void onbuttonclicked();private:
Ui::Diagramm *ui;
};#endif // DIAGRAMM_H
@If i click the button, i want to execute the onbuttonclicked() function from the Diagramm class.
The Error is:
there is no such slot QApplication:onbuttonclicked()I tried also
QObject::connect(button, SIGNAL(clicked()),this, SLOT(onbuttonclicked()));-> invalid use of this in non-member function
Can anyone help me? I am new at QT :(