QDragEnterEvent ¶

详细描述 ¶

A widget must accept this event in order to receive the drag move events that are sent while the drag and drop action is in progress. The drag enter event is always immediately followed by a drag move event.

QDragEnterEvent inherits most of its functionality from QDragMoveEvent , which in turn inherits most of its functionality from QDropEvent .

另请参阅

QDragLeaveEvent QDragMoveEvent QDropEvent

class QDragEnterEvent ( pos , actions , data , buttons , modifiers ) ¶

param modifiers

KeyboardModifiers

param actions

DropActions

param buttons

MouseButtons

param pos

QPoint

param data

QMimeData

构造 QDragEnterEvent that represents a drag entering a widget at the given point with mouse and keyboard states specified by buttons and modifiers .

The drag data is passed as MIME-encoded information in data , and the specified actions describe the possible types of drag and drop operation that can be performed.

警告

Do not create a QDragEnterEvent yourself since these objects rely on Qt’s internal state.