C#:从任务管理器中隐藏多个表单 [英] C#: hiding multiple forms from task manager

问题描述

我正在编写一个应用程序，它可能会创建大量的表单来在桌面上显示小部件.尽管 ShowInTaskbar = false;，但该表单的每个实例都显示在任务管理器的应用程序列表中.实际上它们没有显示在任务栏中.

I'm writing an application which creates a potentially large number of forms to display widgets on the desktop. Every instance of that form shows up in the task manager's Applications list, despite ShowInTaskbar = false; and indeed they do not show in taskbar.

我想要的行为是任务管理器中只显示应用程序的主窗体，我该如何实现?

The behavior I want is that only the application's main form shows up in the task manager, how can I achieve this?

推荐答案

请注意，窗口也显示在 Alt+Tab 栏中.您需要通过覆盖 CreateParams 属性来更改窗口样式标志.这是一个完整的示例:

Note that the windows also show up in the Alt+Tab bar. You need to change the window style flags by overriding the CreateParams property. Here's a full example:

public partial class Form1 : Form {
    public Form1() {
        InitializeComponent();
        this.FormBorderStyle = FormBorderStyle.None;
        this.ShowInTaskbar = false;
    }
    protected override CreateParams CreateParams {
        get {
            var cp = base.CreateParams;
            cp.ExStyle |= 0x80;  // Turn on WS_EX_TOOLWINDOW
            return cp;
        }
    }
}

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