QCheckbox的用法

Posted 2023-02-17

QCheckBox继承自QAbstractButton，它提供了一个带文本标签的复选框

void stateChanged(int state);

当复选框状态发生改变，这个信号就会被发射。即：用户选中或者取消选中

实现两个复选框只能选择其一的代码实现

connect(checkBox_hex_send,&QCheckBox::stateChanged,this,
        &MainWindow::on_checkbox_hex_send_statechanged);
connect(checkBox_ascll_send,&QCheckBox::stateChanged,this,
        &MainWindow::on_checkbox_ascll_send_statechanged);

void MainWindow::on_checkbox_hex_send_statechanged(int arg1)

    if(arg1 == Qt::CheckState::Checked)
    
        checkBox_ascll_send->blockSignals(true);
        checkBox_ascll_send->setCheckState(Qt::CheckState::Unchecked);
        checkBox_ascll_send->blockSignals(false);
    

void MainWindow::on_checkbox_ascll_send_statechanged(int arg1)

    if(arg1 == Qt::CheckState::Checked)
    
        checkBox_hex_send->blockSignals(true);
        checkBox_hex_send->setCheckState(Qt::CheckState::Unchecked);
        checkBox_hex_send->blockSignals(false);
    

两个checkBox只能选择一个，互斥。