在系统菜单中添加自定义菜单项

First, you need to include the System.Runtime.InteropServices namespace:

(第一步，你需要包含 System.Runtime.InteropServices 命名空间. )

Next, define the functions necessary to add items to the system menu:

(接下来，定义...添加项目到系统菜单中...所必需的函数....)

也就是:

[C# .NET]

[DllImport("user32.dll")]

private static extern int GetSystemMenu(int hwnd, int bRevert);

[DllImport("user32.dll")]

private static extern int AppendMenu(int hMenu, int Flagsw, int IDNewItem, string lpNewItem);

[Visual Basic .NET]

Private Declare Function GetSystemMenu Lib "user32.dll" (ByVal hwnd As Integer, _

ByVal bRevert As Integer) As Integer

Private Declare Function AppendMenu Lib "user32.dll" Alias "AppendMenuA" (ByVal hMenu As Integer, _

ByVal Flagsw As Integer, IDNewItem As Integer, ByVal lpNewItem As String) As Integer

(作者还说..他始终没有办法明白的是，为什么'别名' Alias "AppendMenuA" 在VB.NET中是必需的，如果你不包含它，.Net会抛出一个异常说，在调用AppendMenu的时候，在User32.dll中无法找到entry point ...)