Paint stop for patent dialog

Question

Hi

I have a QT code base which fails in swig python code for paint event, but I am new to QT.

I have a very basic question.What is paint event of QT? Can I stop these events and what happens if I do so? I want to stop paint event when I am opening a new dialog from current dialog and stop it when I am back to parent dialog.

Answer 1

// In your code where you open a new dialog
void MainWindow::openDialog() {
// Stop paint events on the parent widget
parentWidget->setUpdatesEnabled(false);

// Open your dialog
Dialog dlg;
dlg.exec();

// Re-enable paint events when the dialog is closed
parentWidget->setUpdatesEnabled(true);
}