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python模拟键盘输入 切换键盘布局过程解析

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PostMessage()

def keyHwnd(hwndEx, char):
  """
  向指定控件输入值
  :param hwndEx: 控件句柄
  :param char: 字符串
  :return: True or Flase
  """
  try:
    for _ in char:
      print('key:%s  ascii:%d' % (_, ord(_)))
      win32api.PostMessage(hwndEx, win32con.WM_CHAR, ord(_), 0)
      time.sleep(random.uniform(0,0.2))
  except Exception as e:
    print(e)
    return False
  return True  
hwnd = win32gui.FindWindow(None,'a.txt - 记事本')
print(hwnd)

win32gui.SetForegroundWindow(hwnd)
hwndex = win32gui.FindWindowEx(hwnd,None,'Edit', None)
keyHwnd(hwndex,'撒地方SDFkof;ldsojfdfdsjfd;slkjfdlksjfkldsjflkdsjlkfjkldsljkfjdssj')

切换键盘布局

该功能封装成了一个装饰器,函数执行完恢复了原键盘布局

import win32con
from win32con import WM_INPUTLANGCHANGEREQUEST
import win32gui
import win32api
def setKeyboardLayout_en(inner):
  def wrapper(*args, **kwargs):
    if win32api.LoadKeyboardLayout('0x0409', win32con.KLF_ACTIVATE) == None:
      return Exception('加载键盘失败')
    # 语言代码
    # https://msdn.microsoft.com/en-us/library/cc233982.aspx
    LID = {0x0804: "Chinese (Simplified) (People's Republic of China)",
        0x0409: 'English (United States)'}

    # 获取前景窗口句柄
    hwnd = win32gui.GetForegroundWindow()

    # 获取前景窗口标题
    title = win32gui.GetWindowText(hwnd)
    # 获取键盘布局列表
    im_list = win32api.GetKeyboardLayoutList()
    im_list = list(map(hex, im_list))
    print(im_list)
    oldKey = hex(win32api.GetKeyboardLayout())

    # 设置键盘布局为英文
    result = win32api.SendMessage(
      hwnd,
      WM_INPUTLANGCHANGEREQUEST,
      0,
      0x4090409)
    if result == 0:
      print('设置英文键盘成功!')
    inner(*args,*kwargs)
    result = win32api.SendMessage(
      hwnd,
      WM_INPUTLANGCHANGEREQUEST,
      0,
      oldKey)
    if result == 0:
      print('还原键盘成功!')
  return wrapper

ascii标准码

keybd_event()

win32api.keybd_event(65, 0, 0, 0)
time.sleep(random.uniform(0, 0.5))
win32api.keybd_event(65, 0, win32con.KEYEVENTF_KEYUP, 0)

microsoft键盘码参考

这位兄弟写的关于模拟键盘非常全

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