python模拟键盘输入 切换键盘布局过程解析

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

来源：https://www.cnblogs.com/jokerBi/p/10974028.html