窗口拖放事件

QWidget拖放事件

Drag And Drop

void dragEnterEvent();
void dragLeaveEvent();
void dragMoveEvent();
void mousePressEvent();
void dropEvent();
void paintEvent();

QAbstractItemModel拖放模型

Drag And Drop

Qt::ItemFlags flags();
Qt::DropActions supportedDragActions();
Qt::DropActions supportedDropActions();
QMimeData* mimeData();
QStringList mimeTypes();
bool dropMimeData();