python虚拟键盘,模拟Python按键来控制游戏

I'm trying to control a game (my two test games are Half Life 2 and Minecraft) using my Kinect and Python. Everything works except for one thing. The game will respond to simulated mouse events and simulated mouse movement (mouse events are done via ctypes and mouse movement is done using pywin32). The problem however is that the games ignore simulated keypresses. Both of them will pick up the simulated keypresses in either the chat window (Minecraft) or the developer console (Half Life 2) but not while playing the actual game.

I've tried several ways of sending the keypresses:

import win32com.client as client

wsh = client.Dispatch('WScript.Shell')

wsh.AppActivate(gameName)

wsh.SendKeys(key)

and:

import win32api

win32api.keybd_event(keyHexCode, 0, 0)

and:

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

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))

I should point out the code in the last one isn't mine, it's off another question here on Stack Overflow.

Does anyone know why none of these work and what the correct way to do this is?

解决方案

I just had the same problem trying to simulate keypresses in Half-Life 2. As Robin said, the solution is to use ScanCodes instead of VKs.

I edited your last code example such that it uses ScanCodes. I tried it with Half-Life 2 and it works just fine:

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

def PressKey(hexKeyCode):

extra = ctypes.c_ulong(0)

ii_ = Input_I()

ii_.ki = KeyBdInput( 0, hexKeyCode, 0x0008, 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( 0, hexKeyCode, 0x0008 | 0x0002, 0, ctypes.pointer(extra) )

x = Input( ctypes.c_ulong(1), ii_ )

ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))

# directx scan codes http://www.gamespp.com/directx/directInputKeyboardScanCodes.html

while (True):

PressKey(0x11)

time.sleep(1)

ReleaseKey(0x11)

time.sleep(1)