WPF 托盘闪烁

控件名：NotifyIcon

作者：WPFDevelopersOrg  - 弈虎、驚鏵

原文链接：   https://github.com/WPFDevelopersOrg/WPFDevelopers

• 框架使用大于等于.NET40。

• Visual Studio 2022。

• 项目使用 MIT 开源许可协议。

• 接着上一篇基础托盘。

• 新增如下：

  • 增加属性TwinkInterval托盘图标闪烁间隔默认500ms，IsTwink = true 开启闪烁。

  • 设计器时不显示托盘。

• Nuget 最新^[1]Install-Package WPFDevelopers 1.0.9.2-preview

• Nuget 最新^[2]Install-Package WPFDevelopers..Minimal 3.2.8.2-preview

1）托盘闪烁代码如下：

/// <summary>/// 托盘图标闪烁间隔/// </summary>public static readonly DependencyProperty TwinkIntervalProperty = DependencyProperty.Register("TwinkInterval",typeof(TimeSpan), typeof(NotifyIcon), new PropertyMetadata(TimeSpan.FromMilliseconds(500), OnTwinkIntervalChanged));/// <summary>/// 托盘图标是否开启闪烁/// </summary>public static readonly DependencyProperty IsTwinkProperty = DependencyProperty.Register("IsTwink", typeof(bool), typeof(NotifyIcon), new PropertyMetadata(false, OnIsTwinkChanged));private static void OnIsTwinkChanged(DependencyObject d, DependencyPropertyChangedEventArgs e){if (d is NotifyIcon trayService){var notifyIcon = (NotifyIcon)d;if (notifyIcon.Visibility != Visibility.Visible) return;if ((bool)e.NewValue){if (notifyIcon._dispatcherTimerTwink == null){notifyIcon._dispatcherTimerTwink = new DispatcherTimer{Interval = notifyIcon.TwinkInterval};notifyIcon._dispatcherTimerTwink.Tick += notifyIcon.DispatcherTimerTwinkTick;}notifyIcon._tempIconHandle = notifyIcon._hIcon;notifyIcon._dispatcherTimerTwink.Start();}else{notifyIcon._dispatcherTimerTwink?.Stop();notifyIcon._dispatcherTimerTwink.Tick -= notifyIcon.DispatcherTimerTwinkTick;notifyIcon._dispatcherTimerTwink = null;notifyIcon._iconHandle = notifyIcon._tempIconHandle;notifyIcon.ChangeIcon(false, notifyIcon._iconHandle);notifyIcon._tempIconHandle = IntPtr.Zero;}}}private static void OnTwinkIntervalChanged(DependencyObject d, DependencyPropertyChangedEventArgs e){if (d is NotifyIcon trayService){var notifyIcon = (NotifyIcon)d;notifyIcon._dispatcherTimerTwink.Interval = (TimeSpan)e.NewValue;}}

2）设计器时不显示托盘代码如下：

if (DesignerHelper.IsInDesignMode == true) return false;#region 是否设计时模式public class DesignerHelper{private static bool? _isInDesignMode;public static bool IsInDesignMode{get{if (!_isInDesignMode.HasValue){_isInDesignMode = (bool)DependencyPropertyDescriptor.FromProperty(DesignerProperties.IsInDesignModeProperty,typeof(FrameworkElement)).Metadata.DefaultValue;}return _isInDesignMode.Value;}}}#endregion

3）使用托盘代码如下：

<wpfdev:NotifyIcon Title="WPF开发者" Name="WpfNotifyIcon"><wpfdev:NotifyIcon.ContextMenu><ContextMenu><MenuItem Header="托盘消息" Click="SendMessage_Click"/><MenuItem Header="闪烁" Name="menuItemTwink"  Click="Twink_Click"/><MenuItem Header="关于" Click="About_Click"><MenuItem.Icon><Path Data="{StaticResource PathWarning}" Fill="{DynamicResource PrimaryNormalSolidColorBrush}"Stretch="Uniform" Height="20" Width="20"/></MenuItem.Icon></MenuItem><MenuItem Header="退出" Click="Quit_Click"/></ContextMenu></wpfdev:NotifyIcon.ContextMenu></wpfdev:NotifyIcon>

4）事件Twink_Click代码如下：

private void Twink_Click(object sender, RoutedEventArgs e){WpfNotifyIcon.IsTwink = !WpfNotifyIcon.IsTwink;menuItemTwink.IsChecked = WpfNotifyIcon.IsTwink;}

 鸣谢 - 弈虎

Github|NotifyIcon^[3]
码云|NotifyIcon^[4]

参考资料

[1]

Nuget : https://www.nuget.org/packages/WPFDevelopers/

[2]

Nuget : https://www.nuget.org/packages/WPFDevelopers.Minimal/

[3]

Github|NotifyIcon: https://github.com/WPFDevelopersOrg/WPFDevelopers/blob/master/src/WPFDevelopers.Samples/ExampleViews/MainWindow.xaml

[4]

码云|NotifyIcon: https://gitee.com/WPFDevelopersOrg/WPFDevelopers/blob/master/src/WPFDevelopers.Samples/ExampleViews/MainWindow.xaml