Public Class Win32
Declare Auto Function MessageBox Lib "user32.dll" _
(ByVal hWnd As Integer, ByVal txt As String, _
ByVal caption As String, ByVal Typ As Integer) As Integer
End Class
Public Class HelloWorld
Public Shared Sub Main()
Win32.MessageBox(0, "Hello World", "Platform Invoke Sample", 0)
End Sub
End Class
这样调用。