pythonからsendInputを使う

sendInput.py

# -*- coding:utf-8 -*-

import time
from ctypes import *
import win32gui, win32con


PUL = POINTER(c_ulong)

class KeyBdInput(Structure):
    _fields_ = [("wVk", c_ushort),      #virtual-key code
                ("wScan", c_ushort),    #hardware scan code
                ("dwFlags", c_ulong),   #keystroke
                ("time", c_ulong),      #time stamp
                ("dwExtraInfo", PUL)]


class MouseInput(Structure):
    _fields_ = [("dx", c_long),
                ("dy", c_long),
                ("mouseData", c_ulong),
                ("dwFlags", c_ulong),
                ("time",c_ulong),
                ("dwExtraInfo", PUL)]


class HardwareInput(Structure):
    _fields_ = [("uMsg", c_ulong),
                ("wParamL", c_short),
                ("wParamH", c_ushort)]


class Input_I(Union):
    _fields_ = [("mi", MouseInput),
                ("ki", KeyBdInput),
                ("hi", HardwareInput)]


class Input(Structure):
    _fields_ = [("type", c_ulong),
                ("ii", Input_I)]


class SendKey(object):
    def __init__(self):
        self.EXTENDED_KEYS = [win32con.VK_LEFT, win32con.VK_DOWN, win32con.VK_UP, win32con.VK_RIGHT]

    def generateVirtualKey(self, key):
        keyMap = {
            "left": win32con.VK_LEFT,
            "down": win32con.VK_DOWN,
            "up": win32con.VK_UP,
            "right": win32con.VK_RIGHT,
        }
        if key in keyMap:
            return keyMap[key]
        else:
            return ord(key.upper())

    def sendKey(self, key, keyStroke):
        virtualKey = self.generateVirtualKey(key)
        scanCode = windll.user32.MapVirtualKeyA(virtualKey, 0)
        dwFlags = win32con.KEYEVENTF_EXTENDEDKEY if virtualKey in self.EXTENDED_KEYS else 0

        if keyStroke == 'down':
            pass
        elif keyStroke == 'up':
            dwFlags = dwFlags | win32con.KEYEVENTF_KEYUP
        else:
            print u'keyStroke Error'

        dwExtraInfo = c_ulong(0)

        ii_ = Input_I()
        ii_.ki = KeyBdInput(virtualKey, scanCode, dwFlags, 0, pointer(dwExtraInfo))

        #keyの送信
        nInputs = 1
        pInputs = Input(win32con.INPUT_KEYBOARD, ii_)
        windll.user32.SendInput(nInputs, pointer(pInputs), sizeof(pInputs))


if __name__ == '__main__':
    sk = SendKey()
    sk.sendKey('Z', 'down')
    time.sleep(0.1)
    sk.sendKey('Z', 'up')