1.建立新模块
public const ERROR-SUCCESS= 0&
public const
APINULL= 0&
public const HKEY-LOCAL-MACHINE= &H80000002
public ReturnCode as long
声明API函数
RegCloseKey()
RegQueryValueEx()
自定义函数
public function
ActiveConnection() as boolean
dim hKey as long
dim
lpSubKey as string
dim lpReserved as long
dim lpType as
long
dim lpData as long
dim lpcbData as long
ActiveConnection=False
lpSubKey="System\CurrentControlSet\Services\RemoteAccess"
ReturnCode=RegOpenKey(HKEY-LOCAL-MACHINE,lpSubKey,phkResult)
if ReturnCode=ERROR-SUCCESS then
hKey=phkResult
lpValueName="Remote Connection"
lpReserved=APINULL
lpType=APINULL
lpData=APINULL
lpcbData=APINULL
ReturnCode=RegQueryValueEx(hKey,lpValueName,lpReserved,lpType,ByVal
lpData,lpcba
ta)
lpcbData=Len(lpData)
ReturnCode=RegQueryValueEx(hKey,lpValueName,lpReserved,lpType,ByVal
lpData,lpcba
ta)
if ReturnCode=ERROR-SUCCESS then
if lpData=0 then
ActiveConnection=false
else
ActiveConnection=True
end if
end if
RegCloseKey(hKey)
end if
end funtion
2.新建窗体
priate sub Command1-click()
if
ActiveConnection=True then
msgbox "OK!"
else
msgbox
"ERROR!"
end sub