如何使用python脚本发送键盘命令(保持,释放,同时)? [英] How can I send keyboard commands (hold,release,simultanous) with a python script?
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问题描述
我实际上想发送这样的命令:
I want to send virtually the command like this:
when keypress=="a" #if entered key is "a"
send {ALT+TAB} # send ALT and TAB simultaneously
sleep(2) #wait for 2 sec
send {"I love my Country",0.1} #send all strings at 0.1 sec wait
key_down("BACKSPACE",1) #hold down backspace key for 1 sec
send{ALT+F4} #send ALT and F4 simultaneously
对于所有或特定应用程序,还包括opengl游戏.
For all, or a particular application, also opengl games as well.
我尝试了SendKeys.py,但是没有同时输入功能,也没有用于发送按住键盘命令的key_down方法.所有建议将不胜感激.
I tried SendKeys.py but there is no simultaneously input function and no key_down method for sending holding down a key command. All advice will be greatly appreciated.
推荐答案
我知道如何使用ctypes.例如,对于Alt-Tab(我知道有很多样板代码):
I know how to do it with ctypes. For example for Alt-Tab (it is a lot of boilerplate code, I know) :
import ctypes
import time
SendInput = ctypes.windll.user32.SendInput
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)]
def PressKey(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_ )
ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))
def ReleaseKey(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_ )
ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))
def PressAltTab():
PressKey(0x012) #Alt
PressKey(0x09) #Tab
time.sleep(2) #optional : if you want to see the atl-tab overlay
ReleaseKey(0x09) #~Tab
ReleaseKey(0x012) #~Alt
if __name__ =="__main__":
PressAltTab()
现代版本将使用Unicode:
A modern version would use Unicode :
KEYEVENTF_UNICODE = 0x0004 KEYEVENTF_KEYUP = 0x0002
KEYEVENTF_UNICODE = 0x0004 KEYEVENTF_KEYUP = 0x0002
def PressKey(KeyUnicode):
extra = ctypes.c_ulong(0)
ii_ = Input_I()
ii_.ki = KeyBdInput( 0, KeyUnicode, KEYEVENTF_UNICODE, 0, ctypes.pointer(extra) )
x = Input( ctypes.c_ulong(1), ii_ )
ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))
def ReleaseKey(KeyUnicode):
extra = ctypes.c_ulong(0)
ii_ = Input_I()
ii_.ki = KeyBdInput( 0, KeyUnicode, KEYEVENTF_UNICODE|KEYEVENTF_KEYUP, 0, ctypes.pointer(extra) )
x = Input( ctypes.c_ulong(1), ii_ )
ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))
def PressAltTab():
PressKey(unichr(0x12)) #Alt
PressKey(unichr(0x09)) #Tab
time.sleep(2) #optional : if you want to see the atl-tab overlay
ReleaseKey(unichr(0x09)) #~Tab
ReleaseKey(unichr(0x12)) #~Alt
if __name__ =="__main__":
PressAltTab()
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