contructor problem inheritance QPushbutton

xcalzada

Hello,

I did the following code:

//CELL HEADER
#include <QtWidgets/QPushButton>
class cell : public QPushButton {
private:
int state = 0;
public:
cell(QWidget *parent = 0);
int getState();
void setState(int);
};

//CELL CPP
#include "cell.h"
cell::cell(QWidget *parent)
:QPushButton(parent) {
}
int cell::getState() {
return this->state;
}
void cell::setState(int state) {
this->state = state;
}

//MAIN.CPP

#include <QtWidgets/QApplication>
#include "minesweeper.h"

int main(int argc, char *argv[])
{
cell *a = new cell("some");
QPushButton *b = new QPushButton("test1");
}

The first line "cell *a = new cell("some");" is giving an error I cannot detect why. seems exactly like the second one.

Best

JonB

@xcalzada

is giving an error I cannot detect why

You should always quote error messages!

You have written constructor

cell::cell(QWidget *parent)
:QPushButton(parent)

only. What about the other QPushButton constructor overloads, like https://doc.qt.io/qt-5/qpushbutton.html#QPushButton-1

QPushButton::QPushButton(const QString &text, QWidget *parent = nullptr)

which is the one you want to override in cell for for your cell *a = new cell("some") ?