ctypes を使用して Python でキーボード イベントをシミュレートする方法

<code class="python">import ctypes
from ctypes import wintypes
import time</code>

<code class="python">user32 = ctypes.WinDLL('user32', use_last_error=True)</code>

<code class="python"># Keyboard input structure
KEYBDINPUT = ctypes.Structure()
KEYBDINPUT._fields_ = (("wVk", wintypes.WORD),
                        ("wScan", wintypes.WORD),
                        ("dwFlags", wintypes.DWORD),
                        ("time", wintypes.DWORD),
                        ("dwExtraInfo", wintypes.ULONG_PTR))

# General input structure
INPUT = ctypes.Structure()
INPUT._fields_ = (("type", wintypes.DWORD),
                    ("ki", KEYBDINPUT))</code>

<code class="python">def PressKey(hexKeyCode):
    x = INPUT(type=INPUT_KEYBOARD, ki=KEYBDINPUT(wVk=hexKeyCode))
    user32.SendInput(1, ctypes.byref(x), ctypes.sizeof(x))

def ReleaseKey(hexKeyCode):
    x = INPUT(type=INPUT_KEYBOARD,
              ki=KEYBDINPUT(wVk=hexKeyCode,
                            dwFlags=KEYEVENTF_KEYUP))
    user32.SendInput(1, ctypes.byref(x), ctypes.sizeof(x))</code>

<code class="python">PressKey(VK_MENU)  # Alt
PressKey(VK_TAB)   # Tab
ReleaseKey(VK_TAB)  # Tab~
time.sleep(2)
ReleaseKey(VK_MENU)  # Alt~</code>