那些底层的keyPressEvent()之类的是QWidget的虚成员，而且是protected的，只能继承并重载，外人没法直接调用，由框架内部调用。或者QCoreApplication::postEvent()投递假消息。
Protected Functions
virtual void actionEvent(QActionEvent *event)
virtual void changeEvent(QEvent *event)
virtual void closeEvent(QCloseEvent *event)
virtual void contextMenuEvent(QContextMenuEvent *event)
void create(WId window = 0, bool initializeWindow = true, bool destroyOldWindow = true)
void destroy(bool destroyWindow = true, bool destroySubWindows = true)
virtual void dragEnterEvent(QDragEnterEvent *event)
virtual void dragLeaveEvent(QDragLeaveEvent *event)
virtual void dragMoveEvent(QDragMoveEvent *event)
virtual void dropEvent(QDropEvent *event)
virtual void enterEvent(QEnterEvent *event)
virtual void focusInEvent(QFocusEvent *event)
bool focusNextChild()
virtual bool focusNextPrevChild(bool next)
virtual void focusOutEvent(QFocusEvent *event)
bool focusPreviousChild()
virtual void hideEvent(QHideEvent *event)
virtual void inputMethodEvent(QInputMethodEvent *event)
virtual void keyPressEvent(QKeyEvent *event)
virtual void keyReleaseEvent(QKeyEvent *event)
virtual void leaveEvent(QEvent *event)
virtual void mouseDoubleClickEvent(QMouseEvent *event)
virtual void mouseMoveEvent(QMouseEvent *event)
virtual void mousePressEvent(QMouseEvent *event)
virtual void mouseReleaseEvent(QMouseEvent *event)
virtual void moveEvent(QMoveEvent *event)
virtual bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
virtual void paintEvent(QPaintEvent *event)
virtual void resizeEvent(QResizeEvent *event)
virtual void showEvent(QShowEvent *event)
virtual void tabletEvent(QTabletEvent *event)
virtual void wheelEvent(QWheelEvent *event)
【 在 chaobill 的大作中提到: 】
: 也就是回调函数不支持跨线程，事件支持是么？
--
FROM 123.115.128.*