#include// ... QCheckBox* check = new QCheckBox("Check me!"); // ... if(check->checkState() == Qt::Checked) { // do something when the checkbox is checked }
#includeIn this example, we create a QCheckBox widget named "check" and set its state to partially checked. We also enable tristate mode for the checkbox, which allows the user to cycle through all three states by clicking. Then, we use a switch statement to perform different actions depending on the checkbox state. These examples use the Qt framework, so the package library is most likely the Qt library.// ... QCheckBox* check = new QCheckBox("Partially check me!"); check->setTristate(true); check->setCheckState(Qt::PartiallyChecked); // ... switch(check->checkState()) { case Qt::Unchecked: // do something when the checkbox is unchecked break; case Qt::PartiallyChecked: // do something when the checkbox is partially checked break; case Qt::Checked: // do something when the checkbox is fully checked break; }