CODEWITHSUNDEEP
qtsignalsslots
Luis López
Luis López

Reputation: 147

Problems connecting Qlistwidget itemDoubleClicked signal with a slot

I am having problems conecting the itemDoubleClicked() signal with a slot in my qt program. I think that it should be working but something goes wrong. I define the GUI by Qt code. Here is the connection part of the code.

MainWindow::MainWindow(QWidget* parent)
    : QWidget(parent)
{
    QListWidget *mImagesListWidget = new QListWidget();   
 connect(mImagesListWidget,SIGNAL(itemDoubleClicked(QListWidgetItem*)),this,SLOT(on_imageListItem_DoubleClicked(QListWidgetItem*)));
}

void MainWindow::on_imageListItem_DoubleClicked(QListWidgetItem listItem){
            QMessageBox msgBox;
            msgBox.setText(listItem.text());
            msgBox.exec();
}

I don't know what could be the problem. Any help or sugestion is welcome. Thanks

Upvotes: 0

Views: 941

Answers (1)

Greenflow
Greenflow

Reputation: 3989

Check your parameters.

Emitting:

itemDoubleClicked(QListWidgetItem*) <-- pointer

Slot:

on_imageListItem_DoubleClicked(QListWidgetItem listItem) <-- value

connect returns a bool. Always good to check it to see if a connection was made.

Upvotes: 3

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