Determining if key is pressed in expression (Python) (PyQT)

Question

In the mouseMoveEvent method I've seen code like below to check if either the left or right mouse buttons are being pushed (as shown below). Is there a way to check if certain keyboard keys are currently being pressed? Ideally I would like to have the action performed when the mouse is leftclicked and moved and a certain key is being pushed. I don't see a way to use keyPressEvent as this is called separately from the mouseMoveEvent (just like mousePressEvent is not used in this example).

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

Edit: Based on ekhumoro's comment method now looks like this. It only works for key modifiers:

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

If anyone is able to get this to work with any key a response would be greatly appreciated

See this answer for a solution (but for modifier keys only). — ekhumoro
If you want to use other keys, you will have to override keyPressEvent and keyReleaseEvent, and then set/unset a flag when the key is pressed/released. — ekhumoro

DJK DJK · Accepted Answer · 2017-08-18T00:41:52

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

Determining if key is pressed in expression (Python) (PyQT)

1 Answers