?分享如何使用WPF 制作 Windows 屏保

WPF 制作 Windows 屏保

作者：驚鏵

原文鏈接：https://github.com/yanjinhuagood/ScreenSaver

• 框架使用.NET452；

• Visual Studio 2019;

• 項目使用 MIT 開源許可協議；

• 更多效果可以通過GitHub^[1]|碼云^[2]下載代碼;

• 也可以自行添加天氣信息等。

?正文

• 屏保程序的本質上就是一個 Win32 窗口應用程序；

  

  • 把編譯好一個窗口應用程序之后，把擴展名更改為 scr，于是你的屏幕保護程序就做好了;

  • 選中修改好的 scr 程序上點擊右鍵，可以看到一個 安裝 選項，點擊之后就安裝了;

  • 安裝之后會立即看到我們的屏幕保護程序已經運行起來了;

• 處理屏幕保護程序參數如下

  • /s 屏幕保護程序開始，或者用戶點擊了 預覽 按鈕;

  • /c 用戶點擊了 設置按鈕;

  • /p 用戶選中屏保程序之后，在預覽窗格中顯示;

1）MainWindow.xaml 代碼如下;

<Window?x:Class="ScreenSaver.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:system="clr-namespace:System;assembly=mscorlib"xmlns:drawing="http://www.microsoft.net/drawing"xmlns:local="clr-namespace:ScreenSaver"mc:Ignorable="d"?WindowStyle="None"Title="MainWindow"?Height="450"?Width="800"><Grid?x:Name="MainGrid"><drawing:PanningItems?ItemsSource="{Binding?stringCollection,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"x:Name="MyPanningItems"><drawing:PanningItems.ItemTemplate><DataTemplate><Rectangle><Rectangle.Fill><ImageBrush?ImageSource="{Binding?.}"/></Rectangle.Fill></Rectangle></DataTemplate></drawing:PanningItems.ItemTemplate></drawing:PanningItems><Grid??HorizontalAlignment="Center"?VerticalAlignment="Top"Margin="0,50,0,0"><Grid.RowDefinitions><RowDefinition/><RowDefinition/></Grid.RowDefinitions><Grid.Resources><Style?TargetType="TextBlock"><Setter?Property="FontSize"?Value="90"/><Setter?Property="FontWeight"?Value="Black"/><Setter?Property="Foreground"?Value="White"/></Style></Grid.Resources><WrapPanel><TextBlock?Text="{Binding?Hour,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"/><TextBlock?Text=":"?x:Name="PART_TextBlock"><TextBlock.Triggers><EventTrigger?RoutedEvent="FrameworkElement.Loaded"><BeginStoryboard><Storyboard><DoubleAnimation?Duration="00:00:01"From="1"To="0"Storyboard.TargetName="PART_TextBlock"Storyboard.TargetProperty="Opacity"RepeatBehavior="Forever"FillBehavior="Stop"/></Storyboard></BeginStoryboard></EventTrigger></TextBlock.Triggers></TextBlock><TextBlock?Text="{Binding?Minute,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"/></WrapPanel><TextBlock?Grid.Row="1"?FontSize="45"?HorizontalAlignment="Center"?Text="{Binding?Date,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"/></Grid></Grid>
</Window>

2） MainWindow.xaml.cs 代碼如下;

• 當屏保啟動后需要注意如下

  • 將鼠標設置為不可見Cursors.None;

  • 將窗體設置為最大化WindowState.Maximized;

  • WindowStyle設置為"None";

  • 注意監聽鼠標按下和鍵盤按鍵則退出屏保;

using?System;
using?System.Collections.ObjectModel;
using?System.Globalization;
using?System.IO;
using?System.Windows;
using?System.Windows.Input;
using?System.Windows.Threading;namespace?ScreenSaver
{///?<summary>///?????MainWindow.xaml?的交互邏輯///?</summary>public?partial?class?MainWindow?:?Window{public?static?readonly?DependencyProperty?stringCollectionProperty?=DependencyProperty.Register("stringCollection",?typeof(ObservableCollection<string>),?typeof(MainWindow),new?PropertyMetadata(null));public?static?readonly?DependencyProperty?HourProperty?=DependencyProperty.Register("Hour",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata(null));public?static?readonly?DependencyProperty?MinuteProperty?=DependencyProperty.Register("Minute",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata(null));public?static?readonly?DependencyProperty?SecondProperty?=DependencyProperty.Register("Second",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata(null));public?static?readonly?DependencyProperty?DateProperty?=DependencyProperty.Register("Date",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata());private?readonly?DispatcherTimer?timer?=?new?DispatcherTimer();public?MainWindow(){InitializeComponent();Loaded?+=?delegate{WindowState?=?WindowState.Maximized;Mouse.OverrideCursor?=?Cursors.None;var?date?=?DateTime.Now;Hour?=?date.ToString("HH");Minute?=?date.ToString("mm");Date?=$"{date.Month}?/?{date.Day}???{CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(date.DayOfWeek)}";stringCollection?=?new?ObservableCollection<string>();var?path?=?Path.Combine(AppDomain.CurrentDomain.BaseDirectory,?"Images");var?directoryInfo?=?new?DirectoryInfo(path);foreach?(var?item?in?directoryInfo.GetFiles()){if?(Path.GetExtension(item.Name)?!=?".jpg")?continue;stringCollection.Add(item.FullName);}timer.Interval?=?TimeSpan.FromSeconds(1);timer.Tick?+=?delegate{date?=?DateTime.Now;Hour?=?date.ToString("HH");Minute?=?date.ToString("mm");Date?=$"{date.Month}?/?{date.Day}???{CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(date.DayOfWeek)}";};timer.Start();};MouseDown?+=?delegate?{?Application.Current.Shutdown();?};KeyDown?+=?delegate?{?Application.Current.Shutdown();?};}public?ObservableCollection<string>?stringCollection{get?=>?(ObservableCollection<string>)GetValue(stringCollectionProperty);set?=>?SetValue(stringCollectionProperty,?value);}public?string?Hour{get?=>?(string)GetValue(HourProperty);set?=>?SetValue(HourProperty,?value);}public?string?Minute{get?=>?(string)GetValue(MinuteProperty);set?=>?SetValue(MinuteProperty,?value);}public?string?Second{get?=>?(string)GetValue(SecondProperty);set?=>?SetValue(SecondProperty,?value);}public?string?Date{get?=>?(string)GetValue(DateProperty);set?=>?SetValue(DateProperty,?value);}}
}

參考①^[3]參考②^[4]

參考資料

[1]

GitHub: https://github.com/yanjinhuagood/ScreenSaver

[2]

碼云: https://gitee.com/yanjinhua/ScreenSaver

[3]

參考①: https://blog.walterlv.com/post/write-a-windows-screen-saver-using-wpf.html

[4]

參考②: https://wbsimms.com/create-screensaver-net-wpf/