QWidget* myWidget = new QWidget; //...code to create and show the widget... if(myWidget->isVisible()){ //do something when myWidget is visible }
QWidget* myWidget = new QWidget; QPushButton* hideButton = new QPushButton("Hide Widget"); //...code to add button to widget... QObject::connect(hideButton, &QPushButton::clicked, [=](){ myWidget->hide(); }); //...code to show the widget...In both examples, we create a new QWidget object and either show or hide the widget based on its visibility state. These examples use the Qt framework's QObject::connect function to connect a button click event to a lambda function that hides the widget. Overall, the QWidget isVisible function is an essential tool for managing the visibility of widgets in Qt applications.