bool QMainWindow::restoreState ( const QByteArray & state, int version = 0 )
void MainWindow::readSettings()
{
QSettings settings("MyCompany", "MyApp");
restoreGeometry(settings.value("myWidget/geometry").toByteArray());
restoreState(settings.value("myWidget/windowState").toByteArray());
}
QByteArray QMainWindow::saveState ( int version = 0 ) const
void MyMainWindow::closeEvent(QCloseEvent *event)
{
QSettings settings("MyCompany", "MyApp");
settings.setValue("geometry", saveGeometry());
settings.setValue("windowState", saveState());
QMainWindow::closeEvent(event);
}
这两个函数一个保存窗口状态,另一个取回。
包括:工具条,窗口大小,dockwidget。