QLineEdit and keyPressEvent(QKeyEvent *)

[fear]

Designer uses QListViewItem. I switched to KListView because there is no hope to find out what's wrong with QLineEdit. Something is filtering Ctrl+A before sequence reaches recently installed event handler. Some magic behind ;[

[wysota]

QObject::event() probably

And Ctrl+A is probably a shortcut to "Select all", so you might need to disable the shortcut.

[fear]

But how disable shortcut?

event() - no.

I think event is first passed through event filter chain, then to event() and finally to specific event function:

event
|
event filter (n) -> event filter (n - 1) -> ... -> event filter (0) -> event() -> keyPressEvent(), where event filter (n) is latest installed event filter

I cannot catch this sequence at event filter (n) level so it's obvious I won't catch it at event() level.

[wysota]

But how disable shortcut?

Hard to say without looking at the code. I'd say it's an action associated with the context menu of the widget.

I cannot catch this sequence at event filter (n)

What did you filter it with?