The QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leaves it. 更多...
| 頭： | #include <QDragLeaveEvent> |
| qmake: | QT += gui |
| 繼承： | QEvent |
| QDragLeaveEvent () |
This event is always preceded by a QDragEnterEvent and a series of QDragMoveEvent s. It is not sent if a QDropEvent is sent instead.
另請參閱 QDragEnterEvent , QDragMoveEvent ，和 QDropEvent .
Constructs a QDragLeaveEvent.
警告： Do not create a QDragLeaveEvent yourself since these objects rely on Qt's internal state.
