解除网虫心病 VB做定时断线程序

• 定时
• 程序
• 解除
• As
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• Dim
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 运行VB 6，向窗体添加7个Label控件、1个Timer控件、3个Text文本输入框以及4个Command按钮。

原理简介：用Timer控件的True或者False值，控制倒计时的开始，当到达设定时间的时候，弹出对话框提示断开连接。

Option Explicit

Dim Hours As Integer

Dim Minutes As Integer

Dim Seconds As Integer

Dim time As Date

Private Declare Function RasHangUp Lib "RasApi32.dll" Alias "RasHangUpA" (ByVal hRasConn As Long) As Long

Private Declare Function RasEnumConnections Lib "RasApi32.dll" Alias "RasEnumConnectionsA" (lprasconn As Any, lpcb As Long, lpcConnections As Long) As Long

Const RAS95_MaxEntryName = 256

Const RAS95_MaxDeviceName = 128

Const RAS_MaxDeviceType = 16

Private Type RASCONN95

dwSize As Long

hRasConn As Long

szEntryName(RAS95_MaxEntryName) As Byte

szDeviceType(RAS_MaxDeviceType) As Byte

szDeviceName(RAS95_MaxDeviceName) As Byte

End Type

下面一段代码是对Timer的控制，以及到设定时间的时候断开连接的代码

Private Sub Timer1_Timer()

Timer1.Enabled = False

If (Format100 100time, "hh") && ":" && Format100 100time, "nn") && ":" && Format100 100time, "ss"))〈〉"00:00:00" Then

time = DateAdd("s", -1, time)

Label1.Visible = False

Label1.Caption = Format100 100time, "hh") && ":" && Format100 100time, "nn") && ":" && Format100 100time, "ss")

Label1.Visible = True

Timer1.Enabled = True

Else

Timer1.Enabled = False

End If

If Label1.Caption = "00:00:01" Then

dsdklj.WindowState = 0

Command1.Enabled = True

MsgBox "时间到了，正在断开连接"

Dim lngRetCode As Long

Dim lpcb As Long

Dim lpcConnections As Long

Dim intArraySize As Integer

Dim intLooper As Integer

ReDim lprasconn95(intArraySize) As RASCONN95

lprasconn95(0).dwSize = 412

lpcb = 256 * lprasconn95(0).dwSize

lngRetCode = RasEnumConnections(lprasconn95(0), lpcb, lpcConnections)

If lngRetCode = 0 Then

If lpcConnections〉0 Then

For intLooper = 0 To lpcConnections-1

RasHangUp lprasconn95(intLooper).hRasConn

Next intLooper

Unload Me

Else

MsgBox "时间到了，没有拨号网络连接"

Unload Me

End If

End If

End If

End Sub

其实，这个程序还可以进一步的完善，比如添加暂停功能、或者经过改造，适用于宽带的，等等。这不，笨笨拿着电话单正偷着乐呢！笨笨已经利用这个小程序省下了不少网费，你呢？