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该应用程序从一个空的 C# 项目启动,输出类型设置为“Windows App”:

using System.Windows.Forms;

static class Program
{
    static System.Windows.Forms.NotifyIcon notifyIcon;
    static System.Drawing.Icon LockedIcon = Properties.Resources.icon_locked;

    [STAThread]
    Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        notifyIcon = new NotifyIcon()
        {
            Icon = LockedIcon,
            ContextMenu = ContextualMenu(),
            Visible = true
        };
        Application.Run()
    }
}

WinForms用作基础,因为WPF没有系统托盘图标控件。但是,所有其他窗口都是WPF. 我像这样运行它们:

static void ShowUI()
{
    MainUI wnd = new MainUI();  //MainUI is a System.Windows.Window (WPF)
    wnd.Show();
}

我有一个参考WindowsFormsIntegration。窗口显示WPF正确,一切似乎都正常。但:

public MainUI()
{
    this.Loaded += (o,e) => this.Icon = Properties.Resources.myIcon.ToImageSource();
    InitializeComponent();
}

public static System.Windows.Media.ImageSource ToImageSource(this System.Drawing.Icon i)
{
    System.Windows.Media.ImageSource imgsrc;
    using (System.IO.MemoryStream iconStream = new System.IO.MemoryStream())
    {
        i.Save(iconStream);
        iconStream.Seek(0, System.IO.SeekOrigin.Begin);
        imgsrc = System.Windows.Media.Imaging.BitmapFrame.Create(iconStream);
    }
    return imgsrc;
}

...抛出一个System.ObjectDisposedException. 扩展方法ToImageSource()在纯WPF项目时运行良好,但自从我切换到WinForms上下文后,它就停止工作并抛出异常。

我尝试通过将单线分成几个步骤进行调试:

System.Drawing.Icon icon = Properties.Resources.myIcon; //works
ImageSource imgsrc = icon.ToImageSource(); //works
wnd.Icon = imgsrc; //System.ObjectDisposedException

不知道发生了什么。这是不运行实际的副作用WPF Application.Run()吗?

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