如何取消窗体标题栏关闭按钮

最新推荐文章于 2022-02-12 08:00:00 发布

转载最新推荐文章于 2022-02-12 08:00:00 发布 · 328 阅读

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原文链接：http://www.cnblogs.com/xingquan/archive/2011/07/12/2103560.html

本文介绍了一种通过C#代码来禁用窗体标题栏的关闭按钮的方法，包括使用DllImport获取系统菜单并移除指定项。

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转自：http://dev.mjxy.cn/a-296.aspx

c#如何取消窗体标题栏关闭

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;

public class Disable
{
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr GetSystemMenu(IntPtr hwnd, bool bRevert);

[DllImport("user32.dll", SetLastError = true)]
public static extern int GetMenuItemCount(IntPtr hMenu);

[DllImport("user32.dll", SetLastError = true)]
public static extern int RemoveMenu(IntPtr hMenu, int uPosition, int uFlags);

private const int MF_BYPOSITION = 0x00000400;

    public static void DisableFormSysMenuCloseButton(Form form)
    {
        IntPtr hWindow = form.Handle;
        IntPtr hMenu = GetSystemMenu(hWindow, false);
        int count = GetMenuItemCount(hMenu);
        RemoveMenu(hMenu, count - 1, MF_BYPOSITION);
        RemoveMenu(hMenu, count - 2, MF_BYPOSITION);
    }

转载于:https://www.cnblogs.com/xingquan/archive/2011/07/12/2103560.html