Escape in QDialog works only in modal mode?

Question

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?

Is your dialog in the focus (active window) when you press Esc. key? — vahancho, Mar 02 '18 at 09:08

score 1 · Answer 1 · edited Mar 02 '18 at 20:21

1

Maybe with an eventfilter, if you make your custom QDialog? If you call

qApp->installEventFilter(yourQDialog);

when creating it, you can define the function

bool eventFilter(QObject *watched, QEvent *event);

to catch the "esc" you are looking for. More on event filters here: http://doc.qt.io/qt-5/qobject.html#installEventFilter.

edited Mar 02 '18 at 20:21

marco.m

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answered Mar 02 '18 at 15:18

Andéol Evain

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"maybe" not a good answer here. Try Your answer first. Why I should make such strange workaround with event filter here? Doc says nothing about. – Aleksey Kontsevich Mar 02 '18 at 17:54

score 0 · Accepted Answer · answered Mar 04 '18 at 18:54

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.

Escape in QDialog works only in modal mode?

2 Answers2