Escape in QDialog works only in modal mode?

[Aleksey_K]

Esc does not work for my dialog in non-modal mode, event going to underlying window. Only adding

setWindowModality(Qt::WindowModal);

to the dialog on creation makes the Esc key work and calls the reject() slot. Is it normal or possible to Esc in/from non-modal dialog?

[Aleksey_K]

Changed

dialog->show();

call to

// Shows the dialog as a modal dialog, blocking until the user closes it.
dialog->exec();

Works fine for now. Seems the only way to catch event in the dialog, non-modal does not allow this or use key event filter as mentioned in another answer: https://stackoverflow.com/a/49072065/630169