使用Python获取Windows触摸屏设备驱动状态属性

要获取触摸屏设备的is connected、is present、needs restart、has problem这几个状态，最可靠的方式是通过Windows Management Instrumentation (WMI) 访问系统设备信息——WMI直接对接设备管理器的底层数据，比注册表或普通win32api更精准。

实现步骤 #

1. 安装依赖库：使用wmi库简化WMI调用，执行以下命令安装：

pip install wmi

2. 编写监控脚本：

import wmi

def check_touch_device_status():
    # 连接本地WMI服务
    wmi_client = wmi.WMI()
    
    # 筛选触摸屏设备（可根据实际设备名称调整匹配规则）
    touch_devices = wmi_client.Win32_PnPEntity(Name__like="%Touch%")
    
    if not touch_devices:
        print("未检测到触摸屏设备")
        return
    
    for device in touch_devices:
        print(f"设备名称: {device.Name}")
        # 判断设备是否存在
        is_present = bool(device.Present)
        print(f"is present: {is_present}")
        
        # 判断设备是否已连接：结合运行状态（Availability=5）和状态码
        is_connected = False
        if hasattr(device, "Availability") and device.Availability == 5:
            is_connected = True
        elif device.Status == "OK":
            is_connected = True
        print(f"is connected: {is_connected}")
        
        # 判断是否需要重启：ConfigManagerErrorCode=1表示需重启
        needs_restart = False
        if hasattr(device, "ConfigManagerErrorCode") and device.ConfigManagerErrorCode == 1:
            needs_restart = True
        print(f"needs restart: {needs_restart}")
        
        # 判断是否存在问题：状态非OK或配置错误码不为0
        has_problem = device.Status != "OK" or (hasattr(device, "ConfigManagerErrorCode") and device.ConfigManagerErrorCode != 0)
        print(f"has problem: {has_problem}")
        print("-" * 50)

if __name__ == "__main__":
    check_touch_device_status()

备选方案（使用pywin32） #

如果不想额外安装wmi库，也可以用pywin32自带的COM接口调用WMI：

import win32com.client

def check_touch_status_win32():
    wmi_service = win32com.client.GetObject("winmgmts:")
    all_devices = wmi_service.InstancesOf("Win32_PnPEntity")
    
    for device in all_devices:
        device_name = device.Name
        # 匹配触摸屏设备
        if "Touch" in device_name or "触摸屏" in device_name:
            print(f"设备名称: {device_name}")
            is_present = bool(device.Present)
            print(f"is present: {is_present}")
            
            is_connected = False
            if hasattr(device, "Availability") and device.Availability == 5:
                is_connected = True
            elif device.Status == "OK":
                is_connected = True
            print(f"is connected: {is_connected}")
            
            needs_restart = hasattr(device, "ConfigManagerErrorCode") and device.ConfigManagerErrorCode == 1
            print(f"needs restart: {needs_restart}")
            
            has_problem = device.Status != "OK" or (hasattr(device, "ConfigManagerErrorCode") and device.ConfigManagerErrorCode != 0)
            print(f"has problem: {has_problem}")
            print("-" * 50)

if __name__ == "__main__":
    check_touch_status_win32()

注意事项 #

• 脚本需要以管理员权限运行，否则可能无法读取完整的设备配置信息
• 设备名称匹配规则可根据实际硬件调整：比如部分中文设备显示为“触摸屏”，可修改Name__like为"%触摸屏%"，或通过硬件ID（DeviceID__like="%HID%"）筛选更精准
• 部分旧设备可能缺少Availability属性，代码中用hasattr做了兼容判断，避免报错

内容的提问来源于stack exchange，提问作者user21959877