我正在尝试使一个web应用程序自动化。我应该单击一个链接,它会打开一个打印窗口。在selenium automation中,我无法实现这一点。因此,我使用ctypes来执行类似于按键的选项卡,输入键事件。下面是我为实现这一点而开发的库。我通过调用相应的方法来执行这些事件。
import ctypes
import time
SendInput = ctypes.windll.user32.SendInput
# C struct redefinitions
PUL = ctypes.POINTER(ctypes.c_ulong)
class KeyBdInput(ctypes.Structure):
_fields_ = [("wVk", ctypes.c_ushort),
("wScan", ctypes.c_ushort),
("dwFlags", ctypes.c_ulong),
("time", ctypes.c_ulong),
("dwExtraInfo", PUL)]
class HardwareInput(ctypes.Structure):
_fields_ = [("uMsg", ctypes.c_ulong),
("wParamL", ctypes.c_short),
("wParamH", ctypes.c_ushort)]
class MouseInput(ctypes.Structure):
_fields_ = [("dx", ctypes.c_long),
("dy", ctypes.c_long),
("mouseData", ctypes.c_ulong),
("dwFlags", ctypes.c_ulong),
("time",ctypes.c_ulong),
("dwExtraInfo", PUL)]
class Input_I(ctypes.Union):
_fields_ = [("ki", KeyBdInput),
("mi", MouseInput),
("hi", HardwareInput)]
class Input(ctypes.Structure):
_fields_ = [("type", ctypes.c_ulong),
("ii", Input_I)]
# Actuals Functions
class KeyEvents :
def PressKey(self,hexKeyCode):
extra = ctypes.c_ulong(0)
ii_ = Input_I()
ii_.ki = KeyBdInput( hexKeyCode, 0x48, 0, 0, ctypes.pointer(extra) )
x = Input( ctypes.c_ulong(1), ii_ )
SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))
def ReleaseKey(self,hexKeyCode):
extra = ctypes.c_ulong(0)
ii_ = Input_I()
ii_.ki = KeyBdInput( hexKeyCode, 0x48, 0x0002,0,ctypes.pointer(extra) )
x = Input( ctypes.c_ulong(1), ii_ )
SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))
def PressAltTab(self):
'''
Press Alt+Tab and hold Alt key for 2 seconds in order to see the overlay
'''
self.PressKey(0x012) #Alt
self.PressKey(0x09) #Tab
self.ReleaseKey(0x09) #~Tab
time.sleep(2)
self.ReleaseKey(0x012)
def PressTab(self):
'''
Press Tab Key
'''
#self.AltTab()
self.PressKey(0x09) #Tab
self.ReleaseKey(0x09)
def PressEnter(self):
'''
PressEnter
'''
#self.AltTab()
self.PressKey(0x0D)#Enter Key
self.ReleaseKey(0x0D)
但是现在当我在linux中使用代码时,我得到了以下错误
File "KeyEvents.py", line 4, in <module>
SendInput = ctypes.windll.user32.SendInput
AttributeError: 'module' object has no attribute 'windll'
我不明白这里出了什么问题。我对python很陌生。请帮我一下。我应该怎么做才能在linux中实现按键事件?
目前没有回答
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