Modal QDialog without exec()?

Joachim W

The QDialog::exec() doc says: "Avoid using this function; instead, use open()."

Does this mean: avoid modal dialogs for good, always use modeless dialogs?

Or is there recommended way to run a modal dialog starting with open()?

JonB

@Joachim-W
See https://doc.qt.io/qt-5/qdialog.html#modal-prop.

You can make the dialog be modal with this when it open()s. exec() does that automatically (regardless of setModal()), but also sits there waiting, whereas open() with modal does the modality but does not spin the wait loop (but you can act on signal https://doc.qt.io/qt-5/qdialog.html#finished).

So long as you don't do anything "naughty", I like a lot of people find it fine to use exec() for the default, normal cases. Purists may advise open(), but exec() works fine for me.