VB INTERNET_OPEN_TYPE_PRECONFIG 只要一进行值传递立马蹦出来变量未定义！
本帖最后由 pspking008 于 2013-10-05 10:14:53 编辑 Public Declare Function InternetOpen Lib "wininet.dll" Alias "InternetOpenA" _
(ByVal sAgent As String, ByVal LAccessType As Long, ByVal sProxyName As String, _
ByVal SProxyBypass As String, ByVal lFlags As Long) As Long
Public Declare Function InternetConnect Lib "wininet.dll" Alias "InternetConnectA" _
(ByVal hInternetSession As Long, ByVal sServerName As String, _
ByVal nServerPort As Integer, ByVal sUsername As String, _
ByVal sPassword As String, ByVal lService As Long, _
ByVal lFlags As Long, ByVal lContext As Long) As Long
Public Declare Function FtpGetFile Lib "wininet.dll" Alias "FtpGetFileA" _
(ByVal hFtpSession As Long, ByVal lpszRemoteFile As String, _
ByVal lpszNewFile As String, ByVal fFailIfExists As Boolean, _
ByVal dwFlagsAndAttributes As Long, ByVal dwFlags As Long, _
ByVal dwContext As Long) As Boolean
Public Declare Function FtpPutFile Lib "wininet.dll" Alias "FtpPutFileA" _
(ByVal hFtpSession As Long, ByVal lpszLocalFile As String, _
ByVal lpszRemoteFile As String, ByVal dwFlags As Long, _
ByVal dwContext As Long) As Boolean
Public Declare Function FtpDeleteFile Lib "wininet.dll" Alias "FtpDeleteFileA" _
(ByVal hFtpSession As Long, ByVal lpszFileName As String) As Boolean
Public Declare Function FtpRenameFile Lib "wininet.dll" Alias "FtpRenameFileA" _
(ByVal hFtpSession As Long, ByVal lpszExsiting As String, ByVal lpszNew As String) As Boolean
Public Declare Function InternetCloseHandle Lib "wininet.dll" (ByVal hInet As Long) As Integer
Public Declare Function FtpFindFirstFile Lib "wininet.dll" Alias "FtpFindFirstFileA" _
(ByVal hFtpSession As Long, ByVal lpszSearchFile As String, _
lpFindFileData As WIN32_FIND_DATA, ByVal dwFlags As Long, _
ByVal dwContent As Long) As Long
Public Declare Function InternetFindNextFile Lib "wininet.dll" Alias "InternetFindNextFileA" _
(ByVal hFind As Long, lpvFndData As WIN32_FIND_DATA) As Long
Public Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Public Type WIN32_FIND_DATA
dwFilAttributes As Long
ftCreationTime As FILETIME
ftLastAccessTime As FILETIME
ftLastWriteTime As FILETIME
nFileSizeHigh As Long
nFileSizeLow As Long
dwReserved0 As Long
dwReserved1 As Long
cFileName As String * 260
cAlternate As String * 14
End Type
Public Declare Function GetOpenFileName Lib "comdlg32.dll" Alias _
"GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long
Type OPENFILENAME
lStructSize As Long
hwndOwner As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
End Type
Public Function download_ftp(ByVal down_ip As String, ByVal down_user As String, ByVal down_pwd As String _
, ByVal download_address As String, ByVal save_address As String) As Boolean
lnginet = InternetOpen(vbNullString, INTERNET_OPEN_TYPE_PRECONFIG, _
vbNullString, vbNullString, 0&)
If lnginet Then
lnginetconn = InternetConnect(lnginet, down_ip, 0, down_user, down_pwd, 1, 0, 0)
If lnginetconn Then
blnRC = FtpGetFile(lnginetconn, download_address, save_address, 0, 0, 1, 0)
If blnRC Then
MsgBox "下载更新配置文件成功！"
End If
InternetCloseHandle lnginetconn '关闭连接
InternetCloseHandle lnginet
Else
MsgBox "失去连接！"
download_ftp = False
End If
Else
MsgBox "FTP错误！"
download_ftp = False
End If
End Function
Call download_ftp("127.0.0.1", "sa", "sa", "/download/update.ini", App.Path & "\update.ini")
只要一进行值传递立马蹦出来变量未定义！
是不是我的代码或者调用方式有什么问题？
[解决办法]
INTERNET_OPEN_TYPE_PRECONFIG
这个是一个常量，你的代码中，本来就没事先定义嘛！
[解决办法]
在你的 Function download_ftp( ) 函数内，或公共段加上一句：
const INTERNET_OPEN_TYPE_PRECONFIG as long = 0
或者直接把 Function download_ftp( ) 内用到它的那儿改成 0 也行。
