QMessage box signal and slot

lash

is there any way to connect QMessageBox ok button clicked signal to a slot in another class

SGaist

Hi and welcome to devnet,

If you are not using the static methods, then yes it is

lash

hi and thank you,I wanted to call a slot in another class when ever QMessageBox Yes Button is clicked and I am not using static methods.Icouldnt figure out how

SGaist

Use QMessageBox::button to retrieve the correct button and connect it accordingly

lash

I tried like this but didnt work
connect(anotherclass->deleteMsgBox.button(QMessageBox::Yes),SIGNAL(clicked()),this,SLOT(repaint()));

mcosta

Hi and welcome to devnet,

In that case I suggest to use signal forwarding

create a SIGNAL in the anotherClass
connect the message box signal to that signal
connect the first signal to repaint

// AnotherClass.h
class QMessageBox;

class AnotherClass 
{
Q_SIGNALS:
    void messageBoxOkClicked();

private:
    QMessageBox *deleteMsgBox;
};

//AnotherClass.cpp
AnotherClass::AnotherClass() 
{
    deleteMsgBox = new QMessageBox(this);

    connect(deleteMsgBox.button(QMessageBox::Yes), SIGNAL(clicked()), this, SIGNAL(messageBoxOkClicked()));
}

//Widget.cpp
connect (anotherClass, SIGNAL(messageBoxOkClicked()), this, SLOY(repaint()));

lash

I tried this but it didnt work ,How can I connect two SIGNALS

mcosta

you can connect 2 signals how I wrote.

can you post your code??

lash

anotherclass.h

QMessageBox deleteMsgBox;

anotherclass.cpp:QGraphicsRectItem

anotherclass::delete()
{
deleteMsgBox.setText("Deleting state...");
deleteMsgBox.setInformativeText("Are you sure you want to delete this state?");
deleteMsgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
deleteMsgBox.setDefaultButton(QMessageBox::No);

ret = deleteMsgBox.exec();
if(ret == QMessageBox::Yes){
.................
}

}
mainclass.cpp{

mainclass::make()
{
connect(anotherclass->deleteMsgBox.button(QMessageBox::Yes),SIGNAL(clicked()),this,SLOT(repaint()));
}
mainclass::repaintAll()
{
..............
}
}