[英]How to close main window from another class?
I have a class which inherits from QDialog
(dialog_game_over). 我有一个从
QDialog
(dialog_game_over)继承的类。 I show an object of that class in a slot of another class. 我在另一个类的插槽中显示该类的对象。 I want to close
mainwindow
and QDialog
when user clicked on ok
button. 当用户单击“
ok
按钮时,我想关闭mainwindow
和QDialog
。 First I built an object of mainwindow
in dialog_game_over
and close it. 首先,我在
dialog_game_over
建立了一个mainwindow
对象,并将其关闭。 But this way it wasn't correct. 但是这种方式是不正确的。 What do I do for closing program in class other than main class?
除主班外,我该如何关闭班上的课程?
dilog_game_over::dilog_game_over(QWidget *parent) :
QDialog(parent),x_size(400),y_size(400)
{
ok=new QPushButton(this);
ok->setText("OK");
ok->move(200,200);
connect(ok,SIGNAL(clicked()),this,SLOT(on_ok_clicked()));
}
void dilog_game_over::on_ok_clicked()
{
accept();
this->close();
}
class Myenemy1 : public QGraphicsObject
{
Q_OBJECT
public slots:
void loss();
private:
dilog_game_over dlg;
}
void Myenemy1::loss()
{
....
dlg.exec();
}
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),size_of_plane_y(600),size_of_plane_x(2500)
{
set_scene();
put_cloud();
put_point();
}
All over your application you can exit by : 您可以通过以下方式退出整个应用程序:
qApp->quit();
Or 要么
qApp->exit(0);
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