python - 确定表达式中是否按下了键 (Python) (PyQT)

Question

在 mouseMoveEvent 方法中，我看到如下代码来检查是否按下了鼠标左键或右键(如下所示)。有没有办法检查当前是否按下了某些键盘按键？理想情况下，我希望在单击鼠标左键并移动鼠标并按下某个键时执行该操作。我没有看到使用 keyPressEvent 的方法，因为它是与 mouseMoveEvent 分开调用的(就像本示例中未使用 mousePressEvent 一样)。

def mouseMoveEvent(self, event):
    if event.buttons() & QtCore.Qt.LeftButton:
        #run this when mouse is moved with left button clicked
    elif event.buttons() & QtCore.Qt.RightButton:
        #run this when mouse is moved with right button clicked

编辑:基于ekhumoro的评论方法现在看起来像这样。它仅适用于按键修饰符:

def mouseMoveEvent(self, event):
    modifiers = QtGui.QApplication.keyboardModifiers()
    if bool(event.buttons() & QtCore.Qt.LeftButton) and (bool(modifiers == QtCore.Qt.ControlModifier)):
        #run this when mouse is moved with left button and ctrl clicked
    elif event.buttons() & QtCore.Qt.LeftButton:
        #run this when mouse is moved with left button clicked             
    elif event.buttons() & QtCore.Qt.RightButton:
        #run this when mouse is moved with Right button clicked

如果有人能够使其与任何键一起使用，我们将不胜感激

Answer 1

def mouseMoveEvent(self, event):
    modifiers = QApplication.keyboardModifiers()
    Mmodo = QApplication.mouseButtons()
    if bool(Mmodo == QtCore.Qt.LeftButton) and (bool(modifiers == QtCore.Qt.ControlModifier)):
        print 'yup'