If found a typo in the word "mouse" on the Scribble example for Qt5: http://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.html

Current:

For mose move events, we use QMouseEvent::buttons() to find which buttons are currently held down (as an OR-combination).

Expected:

For mouse move events, we use QMouseEvent::buttons() to find which buttons are currently held down (as an OR-combination).