基于Python开发Windows屏幕控制工具
作者：创客白泽
在数字化办公时代,屏幕管理已成为提升工作效率和保护眼睛健康的重要环节,本文将分享一个基于Python和PySide6开发的Windows屏幕控制工具,感兴趣的可以了解下
概述
在数字化办公时代，屏幕管理已成为提升工作效率和保护眼睛健康的重要环节。今天我将分享一个基于Python和PySide6开发的Windows屏幕控制工具，它集成了一键息屏、亮度调节、自动息屏时间设置和全局快捷键等实用功能，并支持系统托盘运行和开机自启动。
本文将深入解析这个工具的实现原理、关键技术点和完整代码，适合有一定Python基础的开发者学习GUI开发、系统级操作和实用工具开发。
功能亮点
1.一键息屏功能
- 立即关闭显示器节省能源
- 支持全局快捷键触发（可自定义）
2.自动息屏时间设置
- 预设常用时间（1/5/10/15/30/60分钟）
- 支持自定义任意分钟数
- 永不息屏模式
3.屏幕亮度控制
- 0-100%无级调节
- 预设常用亮度档位
- 亮度调节快捷键支持
4.实用附加功能
- 系统托盘运行
- 开机自启动
- 启动时最小化
- 当前设置实时显示
界面展示
主界面设计
界面采用现代化设计，包含：
- 醒目的标题区
- 快速息屏大按钮
- 自动息屏时间预设区
- 亮度控制滑块
- 应用设置面板
- 当前设置显示区
系统托盘菜单
实现步骤详解
1. 环境准备
# 主要依赖库 import sys import ctypes import subprocess import winreg from PySide6.QtWidgets import (QApplication, QMainWindow, ...) from PySide6.QtCore import Qt, QTimer, QSettings
2. 亮度控制模块
亮度调节采用了三种备选方案，确保兼容性：
class BrightnessController:
def set_brightness(self, level):
# 方法1: WMI (Windows Management Instrumentation)
try:
import wmi
w = wmi.WMI(namespace='wmi')
methods = w.WmiMonitorBrightnessMethods()[0]
methods.WmiSetBrightness(level, 0)
# 方法2: PowerShell命令
except:
script = f"$brightness = {level}; $myMonitor = Get-WmiObject..."
subprocess.run(["powershell", "-Command", script])
# 方法3: DDC/CI控制
except:
import screen_brightness_control as sbc
sbc.set_brightness(level)3. 息屏功能实现
使用Windows API发送消息关闭显示器：
def turn_off_screen(self):
# 0x0112 = WM_SYSCOMMAND, 0xF170 = SC_MONITORPOWER, 2 = 关闭显示器
ctypes.windll.user32.SendMessageW(0xFFFF, 0x0112, 0xF170, 2)
4. 息屏时间设置
通过Windows powercfg命令修改电源设置：
def set_screen_timeout(self, minutes):
if minutes == 0: # 永不息屏
subprocess.run(['powercfg', '/change', 'monitor-timeout-ac', '0'])
else: # 设置指定时间
subprocess.run(['powercfg', '/change', 'monitor-timeout-ac', str(minutes)])
5. 全局快捷键实现
使用QShortcut捕获全局快捷键：
def setup_global_shortcut(self, key_sequence):
self.global_shortcut = QShortcut(key_sequence, self)
self.global_shortcut.activated.connect(self.turn_off_screen)
6. 开机自启动
通过修改Windows注册表实现：
def toggle_autostart(self, state):
key_path = r"SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
if state == Qt.Checked: # 添加启动项
winreg.SetValueEx(key, "ScreenController", 0, winreg.REG_SZ, exe_path)
else: # 删除启动项
winreg.DeleteValue(key, "ScreenController")
7. 系统托盘集成
创建托盘图标和右键菜单：
def setup_tray_icon(self):
self.tray_icon = QSystemTrayIcon(self)
tray_menu = QMenu()
# 添加菜单项
show_action = QAction("显示主窗口", self)
screen_off_action = QAction("立即息屏", self)
# 亮度子菜单
brightness_menu = tray_menu.addMenu("屏幕亮度")
for level in [0, 25, 50, 75, 100]:
action = QAction(f"{level}%", self)
action.triggered.connect(lambda l=level: self.set_brightness_level(l))
brightness_menu.addAction(action)
关键代码解析
1. 多方法亮度控制
亮度控制模块采用了策略模式，依次尝试三种不同的亮度调节方法：
- WMI方式：最原生的Windows管理接口
- PowerShell方式：兼容性更好的脚本方法
- DDC/CI方式：直接与显示器通信
这种设计确保了在各种Windows环境和硬件配置下都能正常工作。
2. 设置持久化
使用QSettings实现配置的自动保存和加载：
# 保存设置
self.settings.setValue("shortcut", self.shortcut_edit.keySequence().toString())
# 加载设置
shortcut_string = self.settings.value("shortcut", "", type=str)
3. 管理员权限检测
关键系统操作需要管理员权限：
def is_admin(self):
try:
return ctypes.windll.shell32.IsUserAnAdmin()
except:
return False
源码下载
import sys
import ctypes
import subprocess
import os
import sys
import winreg
import argparse
from pathlib import Path
from PySide6.QtWidgets import (
QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
QGridLayout, QPushButton, QLabel, QLineEdit, QFrame, QMessageBox,
QGroupBox, QSpacerItem, QSizePolicy, QCheckBox, QKeySequenceEdit,
QSystemTrayIcon, QMenu, QSlider
)
from PySide6.QtCore import Qt, QTimer, QSettings, QStandardPaths
from PySide6.QtGui import QFont, QPalette, QColor, QKeySequence, QShortcut, QIcon, QPixmap, QAction
# 获取应用程序路径（支持打包后的可执行文件）
def get_app_path():
"""获取应用程序路径，支持打包后的可执行文件"""
if getattr(sys, 'frozen', False):
return Path(sys.executable).parent
else:
return Path(__file__).parent
# 获取配置文件路径
def get_config_path():
"""获取配置文件路径"""
config_dir = QStandardPaths.writableLocation(QStandardPaths.AppConfigLocation)
return Path(config_dir) / "ScreenController"
class BrightnessController:
"""屏幕亮度控制类"""
def __init__(self):
self.physical_monitors = self._get_physical_monitors()
def _get_physical_monitors(self):
"""获取物理显示器句柄"""
try:
from screeninfo import get_monitors
return [monitor for monitor in get_monitors() if monitor.is_primary]
except Exception as e:
print(f"获取显示器信息失败: {e}")
return []
def set_brightness(self, level):
"""设置屏幕亮度(0-100)"""
try:
if not (0 <= level <= 100):
raise ValueError("亮度值必须在0-100之间")
# 方法1: 使用WMI (Windows Management Instrumentation)
try:
import wmi
w = wmi.WMI(namespace='wmi')
methods = w.WmiMonitorBrightnessMethods()[0]
methods.WmiSetBrightness(level, 0)
return True
except Exception as wmi_error:
# 方法2: 使用PowerShell命令 (适用于更多系统)
try:
brightness = max(0, min(100, level))
script = f"""
$brightness = {brightness}
$delay = 0
$myMonitor = Get-WmiObject -Namespace root\\wmi -Class WmiMonitorBrightnessMethods
$myMonitor.WmiSetBrightness($delay, $brightness)
"""
subprocess.run(["powershell", "-Command", script], check=True, creationflags=subprocess.CREATE_NO_WINDOW)
return True
except subprocess.CalledProcessError:
# 方法3: 使用DDC/CI (需要显示器支持)
try:
if self.physical_monitors:
import screen_brightness_control as sbc
sbc.set_brightness(level)
return True
except Exception as sbc_error:
raise Exception(f"所有亮度调节方法均失败: WMI错误: {wmi_error}, DDC/CI错误: {sbc_error}")
except Exception as e:
raise Exception(f"设置亮度失败: {str(e)}")
class ScreenController(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("🖥️ Windows屏幕控制")
self.setFixedSize(1000, 800) # 增加窗口尺寸以容纳亮度控制
# 亮度控制器
self.brightness_controller = BrightnessController()
# 设置存储
config_path = get_config_path()
config_path.mkdir(parents=True, exist_ok=True)
settings_file = config_path / "settings.ini"
self.settings = QSettings(str(settings_file), QSettings.IniFormat)
# 全局快捷键
self.global_shortcut = None
self.brightness_shortcut = None
# 系统托盘
self.tray_icon = None
self.setup_tray_icon()
self.setup_ui()
self.setup_style()
self.load_settings()
# 定时器用于更新当前设置
self.update_timer = QTimer()
self.update_timer.timeout.connect(self.update_current_setting)
self.update_timer.start(5000) # 每5秒更新一次
# 初始更新
self.update_current_setting()
def setup_ui(self):
"""设置用户界面"""
central_widget = QWidget()
self.setCentralWidget(central_widget)
# 主布局
main_layout = QVBoxLayout(central_widget)
main_layout.setSpacing(20)
main_layout.setContentsMargins(25, 25, 25, 25)
# 标题 - 添加emoji
title_label = QLabel("🖥️ Windows屏幕控制器")
title_font = QFont("Microsoft YaHei", 20, QFont.Bold)
title_label.setFont(title_font)
title_label.setAlignment(Qt.AlignCenter)
title_label.setStyleSheet("""
QLabel {
padding: 15px;
background: qlineargradient(x1:0, y1:0, x2:1, y2:0,
stop:0 #3498db, stop:1 #2ecc71);
border-radius: 12px;
border: 2px solid #bdc3c7;
color: white;
}
""")
main_layout.addWidget(title_label)
# 快速息屏按钮
self.screen_off_btn = QPushButton("💤 立即息屏")
self.screen_off_btn.clicked.connect(self.turn_off_screen)
self.screen_off_btn.setFixedHeight(65)
button_font = QFont("Microsoft YaHei", 14, QFont.Bold)
self.screen_off_btn.setFont(button_font)
self.screen_off_btn.setStyleSheet("""
QPushButton {
background-color: #e74c3c;
color: white;
border: none;
border-radius: 12px;
padding: 15px;
}
QPushButton:hover {
background-color: #ec7063;
transform: scale(1.02);
}
QPushButton:pressed {
background-color: #c0392b;
}
""")
main_layout.addWidget(self.screen_off_btn)
# 分隔线
separator = QFrame()
separator.setFrameShape(QFrame.HLine)
separator.setFrameShadow(QFrame.Sunken)
separator.setStyleSheet("""
QFrame {
color: #bdc3c7;
margin: 10px 0;
}
""")
main_layout.addWidget(separator)
# 创建水平布局容器
horizontal_container = QWidget()
horizontal_layout = QHBoxLayout(horizontal_container)
horizontal_layout.setSpacing(20)
horizontal_layout.setContentsMargins(0, 0, 0, 0)
# 左侧：息屏时间设置组
settings_group = QGroupBox("⏱️ 自动息屏时间设置")
settings_group.setFont(QFont("Microsoft YaHei", 12, QFont.Bold))
settings_group.setStyleSheet("""
QGroupBox {
font-weight: bold;
border: 2px solid #3498db;
border-radius: 12px;
margin-top: 10px;
padding-top: 15px;
background-color: #f8fafc;
}
QGroupBox::title {
subcontrol-origin: margin;
left: 20px;
padding: 0 10px 0 10px;
color: #2980b9;
}
""")
settings_layout = QVBoxLayout(settings_group)
settings_layout.setSpacing(15)
# 预设时间按钮网格
preset_label = QLabel("⚡ 快速设置（分钟）：")
preset_label.setFont(QFont("Microsoft YaHei", 11, QFont.Bold))
preset_label.setStyleSheet("QLabel { color: #2c3e50; margin-bottom: 5px; }")
settings_layout.addWidget(preset_label)
# 第一行：1, 5, 10分钟
preset_row1 = QWidget()
preset_layout1 = QHBoxLayout(preset_row1)
preset_layout1.setSpacing(12)
preset_layout1.setContentsMargins(0, 0, 0, 0)
time_emojis = {1: "⏱️", 5: "⏳", 10: "⌛"}
for time_val in [1, 5, 10]:
btn = QPushButton(f"{time_emojis.get(time_val, '⏱️')} {time_val}分钟")
btn.clicked.connect(lambda checked=None, t=time_val: self.set_screen_timeout(t))
btn.setFixedHeight(50)
btn.setFont(QFont("Microsoft YaHei", 10, QFont.Bold))
btn.setStyleSheet("""
QPushButton {
background-color: #3498db;
color: white;
border: none;
border-radius: 10px;
padding: 10px;
min-width: 90px;
}
QPushButton:hover {
background-color: #5dade2;
}
QPushButton:pressed {
background-color: #2980b9;
}
""")
preset_layout1.addWidget(btn)
settings_layout.addWidget(preset_row1)
# 第二行：15, 30, 60分钟
preset_row2 = QWidget()
preset_layout2 = QHBoxLayout(preset_row2)
preset_layout2.setSpacing(12)
preset_layout2.setContentsMargins(0, 0, 0, 0)
time_emojis = {15: "🕒", 30: "🕝", 60: "🕐"}
for time_val in [15, 30, 60]:
btn = QPushButton(f"{time_emojis.get(time_val, '🕒')} {time_val}分钟")
btn.clicked.connect(lambda checked=None, t=time_val: self.set_screen_timeout(t))
btn.setFixedHeight(50)
btn.setFont(QFont("Microsoft YaHei", 10, QFont.Bold))
btn.setStyleSheet("""
QPushButton {
background-color: #16a085;
color: white;
border: none;
border-radius: 10px;
padding: 10px;
min-width: 90px;
}
QPushButton:hover {
background-color: #48c9b0;
}
QPushButton:pressed {
background-color: #138d75;
}
""")
preset_layout2.addWidget(btn)
settings_layout.addWidget(preset_row2)
# 添加间距
settings_layout.addItem(QSpacerItem(20, 15, QSizePolicy.Minimum, QSizePolicy.Fixed))
# 自定义时间设置
custom_label = QLabel("🎨 自定义时间：")
custom_label.setFont(QFont("Microsoft YaHei", 11, QFont.Bold))
custom_label.setStyleSheet("QLabel { color: #2c3e50; margin-bottom: 5px; }")
settings_layout.addWidget(custom_label)
custom_widget = QWidget()
custom_layout = QHBoxLayout(custom_widget)
custom_layout.setSpacing(12)
custom_layout.setContentsMargins(0, 0, 0, 0)
self.custom_time_input = QLineEdit()
self.custom_time_input.setPlaceholderText("输入分钟数...")
self.custom_time_input.setFixedHeight(50)
self.custom_time_input.setFont(QFont("Microsoft YaHei", 11))
self.custom_time_input.returnPressed.connect(self.set_custom_timeout)
self.custom_time_input.setStyleSheet("""
QLineEdit {
border: 2px solid #bdc3c7;
border-radius: 10px;
padding: 12px;
background-color: white;
font-size: 11pt;
}
QLineEdit:focus {
border-color: #f39c12;
background-color: #fffde7;
}
""")
custom_layout.addWidget(self.custom_time_input, 2)
minutes_label = QLabel("⏰ 分钟")
minutes_label.setFont(QFont("Microsoft YaHei", 11))
minutes_label.setStyleSheet("QLabel { color: #7f8c8d; }")
custom_layout.addWidget(minutes_label)
custom_btn = QPushButton("✅ 设置")
custom_btn.clicked.connect(self.set_custom_timeout)
custom_btn.setFixedHeight(50)
custom_btn.setFixedWidth(100)
custom_btn.setFont(QFont("Microsoft YaHei", 10, QFont.Bold))
custom_btn.setStyleSheet("""
QPushButton {
background-color: #f39c12;
color: white;
border: none;
border-radius: 10px;
padding: 10px;
}
QPushButton:hover {
background-color: #f4d03f;
}
QPushButton:pressed {
background-color: #d68910;
}
""")
custom_layout.addWidget(custom_btn)
settings_layout.addWidget(custom_widget)
# 添加间距
settings_layout.addItem(QSpacerItem(20, 15, QSizePolicy.Minimum, QSizePolicy.Fixed))
# 永不息屏按钮
never_btn = QPushButton("🚫 永不息屏")
never_btn.clicked.connect(lambda checked=None: self.set_screen_timeout(0))
never_btn.setFixedHeight(55)
never_btn.setFont(QFont("Microsoft YaHei", 12, QFont.Bold))
never_btn.setStyleSheet("""
QPushButton {
background-color: #e74c3c;
color: white;
border: none;
border-radius: 12px;
padding: 12px;
font-weight: bold;
}
QPushButton:hover {
background-color: #ec7063;
transform: scale(1.02);
}
QPushButton:pressed {
background-color: #c0392b;
}
""")
settings_layout.addWidget(never_btn)
# 将息屏时间设置组添加到左侧
horizontal_layout.addWidget(settings_group)
# 中间：亮度控制组
brightness_group = QGroupBox("☀️ 屏幕亮度控制")
brightness_group.setFont(QFont("Microsoft YaHei", 12, QFont.Bold))
brightness_group.setStyleSheet("""
QGroupBox {
font-weight: bold;
border: 2px solid #f39c12;
border-radius: 12px;
margin-top: 10px;
padding-top: 15px;
background-color: #fff9e6;
}
QGroupBox::title {
subcontrol-origin: margin;
left: 20px;
padding: 0 10px 0 10px;
color: #d35400;
}
""")
brightness_layout = QVBoxLayout(brightness_group)
brightness_layout.setSpacing(15)
# 亮度滑块
brightness_slider_layout = QHBoxLayout()
self.brightness_slider = QSlider(Qt.Horizontal)
self.brightness_slider.setRange(0, 100)
self.brightness_slider.setValue(80)
self.brightness_slider.setTickInterval(10)
self.brightness_slider.setTickPosition(QSlider.TicksBelow)
self.brightness_slider.valueChanged.connect(self.adjust_brightness)
self.brightness_slider.setStyleSheet("""
QSlider::groove:horizontal {
height: 10px;
background: #e0e0e0;
border-radius: 5px;
}
QSlider::handle:horizontal {
width: 20px;
height: 20px;
background: #f39c12;
border-radius: 10px;
margin: -5px 0;
}
QSlider::sub-page:horizontal {
background: #f1c40f;
border-radius: 5px;
}
""")
brightness_slider_layout.addWidget(self.brightness_slider)
self.brightness_label = QLabel("80%")
self.brightness_label.setFont(QFont("Microsoft YaHei", 10, QFont.Bold))
self.brightness_label.setFixedWidth(40)
self.brightness_label.setAlignment(Qt.AlignCenter)
brightness_slider_layout.addWidget(self.brightness_label)
brightness_layout.addLayout(brightness_slider_layout)
# 亮度预设按钮
brightness_preset_layout = QHBoxLayout()
brightness_preset_layout.setSpacing(10)
for level in [0, 25, 50, 75, 100]:
btn = QPushButton(f"{level}%")
btn.setFixedHeight(35)
btn.setFont(QFont("Microsoft YaHei", 9))
btn.clicked.connect(lambda checked=None, l=level: self.set_brightness_level(l))
btn.setStyleSheet("""
QPushButton {
background-color: #f1c40f;
color: #34495e;
border: none;
border-radius: 8px;
padding: 5px;
}
QPushButton:hover {
background-color: #f39c12;
color: white;
}
QPushButton:pressed {
background-color: #e67e22;
}
""")
brightness_preset_layout.addWidget(btn)
brightness_layout.addLayout(brightness_preset_layout)
# 亮度快捷键设置
brightness_shortcut_layout = QHBoxLayout()
brightness_shortcut_label = QLabel("🔆 亮度调节快捷键:")
brightness_shortcut_label.setFont(QFont("Microsoft YaHei", 10))
brightness_shortcut_layout.addWidget(brightness_shortcut_label)
self.brightness_shortcut_edit = QKeySequenceEdit()
self.brightness_shortcut_edit.setFixedHeight(35)
self.brightness_shortcut_edit.keySequenceChanged.connect(self.on_brightness_shortcut_changed)
brightness_shortcut_layout.addWidget(self.brightness_shortcut_edit)
brightness_layout.addLayout(brightness_shortcut_layout)
horizontal_layout.addWidget(brightness_group)
# 右侧：应用设置组
app_settings_group = QGroupBox("⚙️ 应用设置")
app_settings_group.setFont(QFont("Microsoft YaHei", 12, QFont.Bold))
app_settings_group.setStyleSheet("""
QGroupBox {
font-weight: bold;
border: 2px solid #9b59b6;
border-radius: 12px;
margin-top: 15px;
padding-top: 15px;
background-color: #faf5ff;
}
QGroupBox::title {
subcontrol-origin: margin;
left: 20px;
padding: 0 15px 0 15px;
color: #8e44ad;
}
""")
app_settings_layout = QVBoxLayout(app_settings_group)
app_settings_layout.setSpacing(20)
# 开机自启动复选框
autostart_widget = QWidget()
autostart_layout = QHBoxLayout(autostart_widget)
autostart_layout.setContentsMargins(10, 5, 10, 5)
self.autostart_checkbox = QCheckBox("🚀 开机自启动")
self.autostart_checkbox.setFont(QFont("Microsoft YaHei", 11))
self.autostart_checkbox.stateChanged.connect(self.toggle_autostart)
self.autostart_checkbox.setStyleSheet("""
QCheckBox {
color: #2c3e50;
padding: 8px;
font-weight: 500;
}
QCheckBox::indicator {
width: 22px;
height: 22px;
}
QCheckBox::indicator:unchecked {
border: 2px solid #bdc3c7;
border-radius: 5px;
background-color: white;
}
QCheckBox::indicator:checked {
border: 2px solid #9b59b6;
border-radius: 5px;
background-color: #9b59b6;
image: url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTYiIGhlaWdodD0iMTYiIHZpZXdCb3g9IjAgMCAxNiAxNiIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPHBhdGggZD0iTTEzIDRMNiAxMkwzIDgiIHN0cm9rZT0id2hpdGUiIHN0cm9rZS13aWR0aD0iMiIgc3Ryb2tlLWxpbmVjYXA9InJvdW5kIiBzdHJva2UtbGluZWpvaW49InJvdW5kIi8+Cjwvc3ZnPgo=);
}
QCheckBox::indicator:hover {
border-color: #9b59b6;
}
""")
autostart_layout.addWidget(self.autostart_checkbox)
autostart_layout.addStretch()
app_settings_layout.addWidget(autostart_widget)
# 启动时最小化复选框
minimize_widget = QWidget()
minimize_layout = QHBoxLayout(minimize_widget)
minimize_layout.setContentsMargins(10, 5, 10, 5)
self.minimize_on_start_checkbox = QCheckBox("📥 启动时最小化到系统托盘")
self.minimize_on_start_checkbox.setFont(QFont("Microsoft YaHei", 11))
self.minimize_on_start_checkbox.stateChanged.connect(self.save_settings)
self.minimize_on_start_checkbox.setStyleSheet(self.autostart_checkbox.styleSheet())
minimize_layout.addWidget(self.minimize_on_start_checkbox)
minimize_layout.addStretch()
app_settings_layout.addWidget(minimize_widget)
# 快捷键设置
shortcut_container = QWidget()
shortcut_container_layout = QVBoxLayout(shortcut_container)
shortcut_container_layout.setContentsMargins(10, 5, 10, 5)
shortcut_container_layout.setSpacing(8)
shortcut_header = QWidget()
shortcut_header_layout = QHBoxLayout(shortcut_header)
shortcut_header_layout.setContentsMargins(0, 0, 0, 0)
shortcut_label = QLabel("⌨️ 立即息屏快捷键：")
shortcut_label.setFont(QFont("Microsoft YaHei", 11, QFont.Bold))
shortcut_label.setStyleSheet("QLabel { color: #2c3e50; font-weight: 500; }")
shortcut_header_layout.addWidget(shortcut_label)
shortcut_header_layout.addStretch()
shortcut_container_layout.addWidget(shortcut_header)
shortcut_widget = QWidget()
shortcut_layout = QHBoxLayout(shortcut_widget)
shortcut_layout.setSpacing(12)
shortcut_layout.setContentsMargins(0, 0, 0, 0)
self.shortcut_edit = QKeySequenceEdit()
self.shortcut_edit.setFixedHeight(45)
self.shortcut_edit.setFont(QFont("Microsoft YaHei", 10))
self.shortcut_edit.keySequenceChanged.connect(self.on_shortcut_changed)
self.shortcut_edit.setStyleSheet("""
QKeySequenceEdit {
border: 2px solid #bdc3c7;
border-radius: 10px;
padding: 10px;
background-color: white;
font-size: 10pt;
}
QKeySequenceEdit:focus {
border-color: #9b59b6;
background-color: #fffde7;
}
""")
shortcut_layout.addWidget(self.shortcut_edit, 2)
clear_shortcut_btn = QPushButton("🗑️ 清除")
clear_shortcut_btn.clicked.connect(self.clear_shortcut)
clear_shortcut_btn.setFixedHeight(45)
clear_shortcut_btn.setFixedWidth(80)
clear_shortcut_btn.setFont(QFont("Microsoft YaHei", 9, QFont.Bold))
clear_shortcut_btn.setStyleSheet("""
QPushButton {
background-color: #95a5a6;
color: white;
border: none;
border-radius: 10px;
padding: 8px;
}
QPushButton:hover {
background-color: #b2bec3;
}
QPushButton:pressed {
background-color: #7f8c8d;
}
""")
shortcut_layout.addWidget(clear_shortcut_btn)
shortcut_container_layout.addWidget(shortcut_widget)
app_settings_layout.addWidget(shortcut_container)
# 将应用设置组添加到右侧
horizontal_layout.addWidget(app_settings_group)
# 将水平布局容器添加到主布局
main_layout.addWidget(horizontal_container)
# 当前设置显示
self.current_setting_label = QLabel("🔍 当前设置：获取中...")
self.current_setting_label.setFont(QFont("Microsoft YaHei", 10))
self.current_setting_label.setAlignment(Qt.AlignCenter)
self.current_setting_label.setStyleSheet("""
QLabel {
color: #7f8c8d;
padding: 15px;
background-color: #f8f9fa;
border-radius: 8px;
border: 1px solid #dee2e6;
}
""")
main_layout.addWidget(self.current_setting_label)
# 添加弹性空间
main_layout.addItem(QSpacerItem(20, 40, QSizePolicy.Minimum, QSizePolicy.Expanding))
# 底部信息栏
footer_label = QLabel("🛠️ 由创客白泽开发 | 🖥️ Windows屏幕控制工具 ")
footer_label.setFont(QFont("Microsoft YaHei", 8))
footer_label.setAlignment(Qt.AlignCenter)
footer_label.setStyleSheet("QLabel { color: #7f8c8d; margin-top: 10px; }")
main_layout.addWidget(footer_label)
def setup_style(self):
"""设置整体样式"""
self.setStyleSheet("""
QMainWindow {
background-color: #ffffff;
}
QWidget {
background-color: #ffffff;
}
""")
def setup_tray_icon(self):
"""设置系统托盘图标"""
if not QSystemTrayIcon.isSystemTrayAvailable():
QMessageBox.critical(self, "系统托盘", "系统托盘不可用")
return
# 创建托盘图标
self.tray_icon = QSystemTrayIcon(self)
# 尝试加载favicon.ico图标
app_path = get_app_path()
icon_path = app_path / "icon.ico"
if icon_path.exists():
icon = QIcon(str(icon_path))
else:
# 如果找不到favicon.ico，创建一个简单的图标
pixmap = QPixmap(16, 16)
pixmap.fill(Qt.blue)
icon = QIcon(pixmap)
self.tray_icon.setIcon(icon)
# 创建托盘菜单
tray_menu = QMenu()
# 显示主窗口
show_action = QAction("🖥️ 显示主窗口", self)
show_action.triggered.connect(self.show_main_window)
tray_menu.addAction(show_action)
# 立即息屏
screen_off_action = QAction("💤 立即息屏", self)
screen_off_action.triggered.connect(self.turn_off_screen)
tray_menu.addAction(screen_off_action)
# 亮度调节菜单
brightness_menu = tray_menu.addMenu("☀️ 屏幕亮度")
brightness_levels = [
("🌑 0%", 0),
("🌘 25%", 25),
("🌗 50%", 50),
("🌖 75%", 75),
("🌕 100%", 100)
]
for text, level in brightness_levels:
action = QAction(text, self)
action.triggered.connect(lambda checked=None, l=level: self.set_brightness_level(l))
brightness_menu.addAction(action)
tray_menu.addSeparator()
# 退出程序
quit_action = QAction("🚪 退出", self)
quit_action.triggered.connect(QApplication.instance().quit)
tray_menu.addAction(quit_action)
self.tray_icon.setContextMenu(tray_menu)
self.tray_icon.activated.connect(self.tray_icon_activated)
# 设置托盘提示
self.tray_icon.setToolTip("Windows屏幕控制器")
# 显示托盘图标
self.tray_icon.show()
def tray_icon_activated(self, reason):
"""托盘图标被激活时的处理"""
if reason == QSystemTrayIcon.DoubleClick:
self.show_main_window()
def show_main_window(self):
"""显示主窗口"""
self.show()
self.raise_()
self.activateWindow()
def turn_off_screen(self):
"""立即关闭屏幕"""
try:
# 发送消息关闭显示器
ctypes.windll.user32.SendMessageW(0xFFFF, 0x0112, 0xF170, 2)
except Exception as e:
if self.isVisible():
QMessageBox.warning(self, "错误", f"关闭屏幕失败: {str(e)}")
else:
# 如果窗口不可见，通过托盘显示消息
if self.tray_icon:
self.tray_icon.showMessage("错误", f"关闭屏幕失败: {str(e)}", QSystemTrayIcon.Warning, 3000)
def set_screen_timeout(self, minutes):
"""设置屏幕超时时间"""
try:
if minutes == 0:
message = "已设置为永不息屏"
# 永不关闭屏幕
result1 = subprocess.run(['powercfg', '/change', 'monitor-timeout-ac', '0'],
capture_output=True, text=True, check=True,
creationflags=subprocess.CREATE_NO_WINDOW)
result2 = subprocess.run(['powercfg', '/change', 'monitor-timeout-dc', '0'],
capture_output=True, text=True, check=True,
creationflags=subprocess.CREATE_NO_WINDOW)
else:
message = f"已设置息屏时间为 {minutes} 分钟"
# 设置指定的超时时间
result1 = subprocess.run(['powercfg', '/change', 'monitor-timeout-ac', str(minutes)],
capture_output=True, text=True, check=True,
creationflags=subprocess.CREATE_NO_WINDOW)
result2 = subprocess.run(['powercfg', '/change', 'monitor-timeout-dc', str(minutes)],
capture_output=True, text=True, check=True,
creationflags=subprocess.CREATE_NO_WINDOW)
if self.isVisible():
QMessageBox.information(self, "成功", message)
else:
# 如果窗口不可见，通过托盘显示消息
if self.tray_icon:
self.tray_icon.showMessage("设置成功", message, QSystemTrayIcon.Information, 3000)
self.update_current_setting()
except subprocess.CalledProcessError as e:
error_msg = f"设置失败: {e.stderr if e.stderr else str(e)}"
if self.isVisible():
QMessageBox.warning(self, "错误", error_msg)
else:
if self.tray_icon:
self.tray_icon.showMessage("错误", error_msg, QSystemTrayIcon.Warning, 3000)
except FileNotFoundError:
error_msg = "找不到powercfg命令，请确保在Windows系统上运行"
if self.isVisible():
QMessageBox.warning(self, "错误", error_msg)
else:
if self.tray_icon:
self.tray_icon.showMessage("错误", error_msg, QSystemTrayIcon.Warning, 3000)
except Exception as e:
error_msg = f"未知错误: {str(e)}"
if self.isVisible():
QMessageBox.warning(self, "错误", error_msg)
else:
if self.tray_icon:
self.tray_icon.showMessage("错误", error_msg, QSystemTrayIcon.Warning, 3000)
def set_custom_timeout(self):
"""设置自定义超时时间"""
try:
time_str = self.custom_time_input.text().strip()
if not time_str:
QMessageBox.warning(self, "警告", "请输入时间")
return
minutes = int(time_str)
if minutes < 0:
QMessageBox.warning(self, "警告", "时间不能为负数")
return
self.set_screen_timeout(minutes)
self.custom_time_input.clear() # 清空输入框
except ValueError:
QMessageBox.critical(self, "错误", "请输入有效的数字")
def update_current_setting(self):
"""更新当前设置显示"""
try:
# 获取当前屏幕超时设置
result = subprocess.run(["powercfg", "/query", "SCHEME_CURRENT",
"SUB_VIDEO", "VIDEOIDLE"],
capture_output=True, text=True, check=True,
creationflags=subprocess.CREATE_NO_WINDOW)
# 解析输出获取当前设置
lines = result.stdout.split('\n')
ac_timeout = None
for line in lines:
# 支持中英文输出
if "Current AC Power Setting Index:" in line or "当前交流电源设置索引:" in line:
try:
ac_timeout = int(line.split(':')[1].strip(), 16)
break
except (ValueError, IndexError):
continue
if ac_timeout is not None:
if ac_timeout == 0:
setting_text = "🔴 当前设置：永不息屏"
else:
minutes = ac_timeout // 60
setting_text = f"🟢 当前设置：{minutes} 分钟后息屏"
else:
setting_text = "⚠️ 当前设置：解析失败"
self.current_setting_label.setText(setting_text)
except subprocess.CalledProcessError as e:
error_detail = f"命令执行失败: {e.stderr if e.stderr else '未知错误'}"
self.current_setting_label.setText(f"⚠️ 当前设置：获取失败 ({error_detail})")
except FileNotFoundError:
self.current_setting_label.setText("⚠️ 当前设置：找不到powercfg命令")
except Exception as e:
self.current_setting_label.setText(f"⚠️ 当前设置：异常错误 ({str(e)})")
def adjust_brightness(self, value):
"""调整屏幕亮度"""
try:
self.brightness_label.setText(f"{value}%")
self.brightness_controller.set_brightness(value)
except Exception as e:
QMessageBox.warning(self, "亮度调节失败", f"无法调整亮度: {str(e)}")
def set_brightness_level(self, level):
"""设置特定亮度级别"""
self.brightness_slider.setValue(level)
self.adjust_brightness(level)
def on_brightness_shortcut_changed(self, key_sequence):
"""亮度快捷键改变时的处理"""
if key_sequence.isEmpty():
return
# 检查快捷键冲突
if self.check_shortcut_conflict(key_sequence):
reply = QMessageBox.question(
self, "快捷键冲突",
f"⚠️ 快捷键 {key_sequence.toString()} 可能与其他程序冲突。\n是否仍要使用此快捷键？",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No
)
if reply == QMessageBox.No:
self.brightness_shortcut_edit.clear()
return
# 设置新的快捷键
self.setup_brightness_shortcut(key_sequence)
self.save_settings()
QMessageBox.information(self, "成功", f"✅ 已设置亮度调节快捷键：{key_sequence.toString()}")
def setup_brightness_shortcut(self, key_sequence):
"""设置亮度调节全局快捷键"""
# 清除旧的快捷键
if self.brightness_shortcut:
self.brightness_shortcut.setEnabled(False)
self.brightness_shortcut = None
# 设置新的快捷键
if not key_sequence.isEmpty():
self.brightness_shortcut = QShortcut(key_sequence, self)
self.brightness_shortcut.activated.connect(self.toggle_brightness)
def toggle_brightness(self):
"""切换亮度预设"""
current = self.brightness_slider.value()
if current >= 75:
self.set_brightness_level(25)
elif current >= 25:
self.set_brightness_level(0)
else:
self.set_brightness_level(75)
def is_admin(self):
"""检查是否以管理员权限运行"""
try:
return ctypes.windll.shell32.IsUserAnAdmin()
except:
return False
def toggle_autostart(self, state):
"""切换开机自启动"""
try:
key_path = r"SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
app_name = "WindowsScreenController"
if state == Qt.Checked:
# 添加到注册表
with winreg.OpenKey(winreg.HKEY_CURRENT_USER, key_path, 0, winreg.KEY_SET_VALUE) as key:
if getattr(sys, 'frozen', False):
# 打包后的可执行文件，添加启动时最小化参数
exe_path = f'"{sys.executable}" --minimized'
else:
# Python脚本
exe_path = sys.executable
script_path = os.path.abspath(__file__)
exe_path = f'"{exe_path}" "{script_path}" --minimized'
winreg.SetValueEx(key, app_name, 0, winreg.REG_SZ, exe_path)
QMessageBox.information(self, "成功", "✅ 已启用开机自启动")
else:
# 从注册表删除
try:
with winreg.OpenKey(winreg.HKEY_CURRENT_USER, key_path, 0, winreg.KEY_SET_VALUE) as key:
winreg.DeleteValue(key, app_name)
QMessageBox.information(self, "成功", "❌ 已禁用开机自启动")
except FileNotFoundError:
pass # 键不存在，无需删除
self.save_settings()
except PermissionError:
QMessageBox.warning(self, "错误", "⛔ 权限不足，无法修改注册表启动项")
# 恢复复选框状态
self.autostart_checkbox.setChecked(not state)
except Exception as e:
QMessageBox.critical(self, "错误", f"⚠️ 设置开机自启动失败：{str(e)}")
# 恢复复选框状态
self.autostart_checkbox.setChecked(not state)
def check_autostart_status(self):
"""检查开机自启动状态"""
try:
key_path = r"SOFTWARE\Microsoft\Windows\CurrentVersion\Run"
app_name = "WindowsScreenController"
with winreg.OpenKey(winreg.HKEY_CURRENT_USER, key_path, 0, winreg.KEY_READ) as key:
try:
winreg.QueryValueEx(key, app_name)
return True
except FileNotFoundError:
return False
except Exception:
return False
def on_shortcut_changed(self, key_sequence):
"""快捷键改变时的处理"""
if key_sequence.isEmpty():
return
# 检查快捷键冲突
if self.check_shortcut_conflict(key_sequence):
reply = QMessageBox.question(
self, "快捷键冲突",
f"⚠️ 快捷键 {key_sequence.toString()} 可能与其他程序冲突。\n是否仍要使用此快捷键？",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No
)
if reply == QMessageBox.No:
self.shortcut_edit.clear()
return
# 设置新的快捷键
self.setup_global_shortcut(key_sequence)
self.save_settings()
QMessageBox.information(self, "成功", f"✅ 已设置快捷键：{key_sequence.toString()}")
def check_shortcut_conflict(self, key_sequence):
"""检查快捷键冲突（简单检查常见系统快捷键）"""
key_string = key_sequence.toString().lower()
# 常见的系统快捷键
system_shortcuts = [
"ctrl+c", "ctrl+v", "ctrl+x", "ctrl+z", "ctrl+y", "ctrl+a", "ctrl+s",
"ctrl+alt+del", "ctrl+shift+esc", "alt+tab", "alt+f4", "win+l",
"win+d", "win+r", "win+e", "win+i", "win+x", "ctrl+alt+t",
"print screen", "alt+print screen", "ctrl+print screen"
]
return key_string in system_shortcuts
def setup_global_shortcut(self, key_sequence):
"""设置全局快捷键"""
# 清除旧的快捷键
if self.global_shortcut:
self.global_shortcut.setEnabled(False)
self.global_shortcut = None
# 设置新的快捷键
if not key_sequence.isEmpty():
self.global_shortcut = QShortcut(key_sequence, self)
self.global_shortcut.activated.connect(self.turn_off_screen)
def clear_shortcut(self):
"""清除快捷键"""
self.shortcut_edit.clear()
if self.global_shortcut:
self.global_shortcut.setEnabled(False)
self.global_shortcut = None
self.save_settings()
QMessageBox.information(self, "成功", "🗑️ 已清除快捷键")
def save_settings(self):
"""保存设置"""
self.settings.setValue("autostart", self.autostart_checkbox.isChecked())
self.settings.setValue("minimize_on_start", self.minimize_on_start_checkbox.isChecked())
self.settings.setValue("shortcut", self.shortcut_edit.keySequence().toString())
self.settings.setValue("brightness_shortcut", self.brightness_shortcut_edit.keySequence().toString())
self.settings.setValue("brightness_level", self.brightness_slider.value())
def load_settings(self):
"""加载设置"""
# 加载开机自启动状态
autostart_status = self.check_autostart_status()
self.autostart_checkbox.setChecked(autostart_status)
# 加载其他设置
minimize_on_start = self.settings.value("minimize_on_start", False, type=bool)
self.minimize_on_start_checkbox.setChecked(minimize_on_start)
shortcut_string = self.settings.value("shortcut", "", type=str)
if shortcut_string:
key_sequence = QKeySequence(shortcut_string)
self.shortcut_edit.setKeySequence(key_sequence)
self.setup_global_shortcut(key_sequence)
brightness_shortcut_string = self.settings.value("brightness_shortcut", "", type=str)
if brightness_shortcut_string:
key_sequence = QKeySequence(brightness_shortcut_string)
self.brightness_shortcut_edit.setKeySequence(key_sequence)
self.setup_brightness_shortcut(key_sequence)
brightness_level = self.settings.value("brightness_level", 80, type=int)
self.brightness_slider.setValue(brightness_level)
self.brightness_label.setText(f"{brightness_level}%")
# 如果设置了启动时最小化，则隐藏到托盘
if minimize_on_start:
self.hide()
def showEvent(self, event):
"""窗口显示时检查权限"""
super().showEvent(event)
if not self.is_admin():
QMessageBox.warning(self, "权限提示",
"⚠️ 建议以管理员权限运行此程序以确保所有功能正常工作")
def closeEvent(self, event):
"""关闭事件处理"""
if self.tray_icon and self.tray_icon.isVisible():
# 如果托盘图标可见，隐藏到托盘而不是退出
self.hide()
event.ignore()
if not hasattr(self, '_tray_message_shown'):
self.tray_icon.showMessage(
"程序已最小化到托盘",
"📌 程序仍在后台运行，双击托盘图标可重新打开",
QSystemTrayIcon.Information,
3000
)
self._tray_message_shown = True
else:
self.save_settings()
event.accept()
def main():
"""主函数"""
# 解析命令行参数
parser = argparse.ArgumentParser(description='Windows屏幕控制器')
parser.add_argument('--minimized', action='store_true', help='启动时最小化到系统托盘')
args = parser.parse_args()
app = QApplication(sys.argv)
# 设置应用程序样式
app.setStyle('Fusion')
# 设置应用程序信息
app.setApplicationName("Windows屏幕控制器")
app.setApplicationVersion("2.0")
app.setOrganizationName("ScreenController")
# 设置应用程序图标
app_path = get_app_path()
icon_path = app_path / "favicon.ico"
if icon_path.exists():
app.setWindowIcon(QIcon(str(icon_path)))
window = ScreenController()
# 如果指定了--minimized参数或设置了启动时最小化，则不显示主窗口
if args.minimized or window.minimize_on_start_checkbox.isChecked():
# 不显示主窗口，直接最小化到托盘
pass
else:
window.show()
sys.exit(app.exec())
if __name__ == "__main__":
# 检查并安装必要的依赖
try:
import wmi
import screeninfo
import screen_brightness_control
except ImportError:
print("正在安装必要的依赖库...")
try:
import pip
pip.main(['install', 'wmi', 'screeninfo', 'screen-brightness-control'])
except:
subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'wmi', 'screeninfo', 'screen-brightness-control'])
main()
项目总结
这个Windows屏幕控制工具通过精心设计的UI和稳健的后台实现，解决了日常使用中的多个痛点：
- 一键操作：告别繁琐的系统设置路径
- 全局快捷键：随时随地快速息屏
- 亮度精细控制：保护眼睛健康
- 无感运行：系统托盘常驻不打扰
技术亮点：
- 多方法兼容的亮度控制
- 完善的异常处理机制
- 符合Windows应用规范的设置存储
- 优雅的系统托盘集成
扩展方向：
- 添加多显示器独立控制
- 实现根据时间自动调整亮度
- 增加使用统计和提醒功能
使用建议
- 建议以管理员权限运行以获得完整功能
- 设置开机自启动+最小化，实现无感运行
- 为息屏功能设置顺手的全局快捷键（如Ctrl+Alt+L）
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