检测按下的两个鼠标按钮

Detecting both mouse buttons held down

我是 python 的新手,我发现了一个代码可以在按下和释放时检测鼠标按钮,但我希​​望“x”在两个按钮都按下时变为 True,我该怎么做这个

     # This function will be called when any key of mouse is pressed
def on_click(*args):
  # see what argument is passed.
  print(args)
  if args[-1]:
    # Do something when the mouse key is pressed.
    print('The "{}" mouse key has held down'.format(args[-2].name))

elif not args[-1]:
    # Do something when the mouse key is released.
    print('The "{}" mouse key is released'.format(args[-2].name))

# Open Listener for mouse key presses
with Listener(on_click=on_click) as listener:
 # Listen to the mouse key presses
 listener.join()

要检测两个按钮是否同时按下,需要三个变量(在程序开始时在 on_click 函数之外初始化):

global leftPressed, rightPressed, bothPressed
leftPressed = False
rightPressed = False
bothPressed = False

*注意变量在这里是全局的,因为 on_click 的多个版本将访问和修改变量

然后,在第一个 if 语句中(按下鼠标按钮时):

if args[-2].name == "left":
    leftPressed = True
elif args[-2].name == "right":
    rightPressed = True
            
if leftPressed and rightPressed:
    # if both left and right are pressed
    bothPressed = True

并且在第二个 if 语句中(当鼠标按钮被释放时)

if args[-2].name == "left":
    leftPressed = False
elif args[-2].name == "right":
    rightPressed = False

# as one key has been released, both are no longer pressed
bothPressed = False
print(bothPressed)

最后,要从函数 on_click 中访问全局变量,请将此行放在函数的开头:

global leftPressed, rightPressed, bothPressed

在此处查看代码的完整版本:

https://pastebin.com/nv9ddqMM