How to disable auto-repeat?

[jpn]

You can programmatically prevent auto-repeat by ignoring the key event when it is an auto-repeat.

bool QKeyEvent::isAutoRepeat () const

Returns true if this event comes from an auto-repeating key; returns false if it comes from an initial key press.

Note that if the event is a multiple-key compressed event that is partly due to auto-repeat, this function could return either true or false indeterminately.