Private Sub Form_Load() If IsConnected = TRUE Then MsgBox
("您已经连通了Internet!") End If If IsConnected = FALSE Then
MsgBox ("您还没有连通 Internet!") End If End Sub
Option
Explicit /＊有关的API声明和定义＊/ Public Declare Function
RasEnumConnections Lib "RasApi32.dll" Alias "RasEnumConnectionsA"
(lpRasCon As Any, lpcb As Long, lpcConnections As Long) As Long
Public Declare Function RasGetConnectStatus Lib "RasApi32.dll" Alias
"RasGetConnectStatusA" (ByVal hRasCon As Long, lpStatus As Any) As Long
/＊常数和变量的设定＊/ Public Const RAS95_MaxEntryName = 256 Public
Const RAS95_MaxDeviceType = 16 Public Const RAS95_MaxDeviceName = 32
Public Type RASCONN95 dwSize As Long hRasCon As Long
szEntryName(RAS95_MaxEntryName) As Byte
szDeviceType(RAS95_MaxDeviceType) As Byte
szDeviceName(RAS95_MaxDeviceName) As Byte End Type
Public
Type RASCONNSTATUS95 dwSize As Long RasConnState As Long
dwError As Long szDeviceType(RAS95_MaxDeviceType) As Byte
szDeviceName(RAS95_MaxDeviceName) As Byte End Type
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