VB.NET更改Windows系统日期时间 [英] VB.NET change windows system date time

问题描述

我正在尝试使用下面的代码示例来更改Windows 8系统日期时间。

I'm trying to change the Windows 8 system datetime with the code example below.

Private Structure SYSTEMTIME

    Public year As Short

    Public month As Short

    Public dayOfWeek As Short

    Public day As Short

    Public hour As Short

    Public minute As Short

    Public second As Short

    Public milliseconds As Short

End Structure

<DllImport("Kernel32.dll")> Private Shared Function SetLocalTime(ByRef time As SYSTEMTIME) As Boolean

End Function

Private Sub ChangeDate

            Dim st As SYSTEMTIME
            Dim NewDate As Date = "28-April-1978 22:30:00"
            st.year = NewDate .Year
            st.month = NewDate.Month
            st.dayOfWeek = NewDate.DayOfWeek
            st.day = NewDate.Day
            st.hour = NewDate.Hour
            st.minute = NewDate.Minute
            st.second = NewDate.Second
            st.milliseconds = NewDate.Millisecond

            'Set the new time...
            SetLocalTime(st)
End Sub

当我打印SetLocalTime的结果时，它返回false，系统的datetime不会更改。我也尝试过SetSystemTime函数，但它返回0，也不会改变任何东西。我在Windows上使用管理员帐号。

When I print the result of SetLocalTime, it returns false and the system's datetime does not change. I have tried SetSystemTime function also but it returns 0 and does not change anything too. I am using the admin account on windows.

我应该修改什么来使这项工作？

What should I modify to make this work?

推荐答案

你不需要任何这样做你想要的。您可以使用 Microsoft.VisualBasic 命名空间来实现此目的。以下是您需要的简短示例。

You don't need any of that to do what you want. You can use Microsoft.VisualBasic namespace to accomplish this. Here's a short example for what you need. This is tried and tested as well.

Private Sub ChangeDate()
   Dim d As DateTime
   d = "22:30:00"

   Try
      Microsoft.VisualBasic.TimeOfDay = d 'Your time...
      Microsoft.VisualBasic.DateString = New Date(1978, 4, 28) 'The date...
   Catch ex As Exception
      'You might have to run as Administrator...?
   End Try

End Sub

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