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1¡¢Ìí¼ÓÒ»¸öÓû§¿Ø¼þ£¬ÉèÖÃInvisibleAtRuntimeÊôÐÔΪtrue£¬Ä¿µÄÊÇÔËÐÐʱ¸Ã¿Ø¼þ²»ÏÔʾÓû§½çÃ棬¾ÍÏóTimer¿Ø¼þÒ»Ñù¡£
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Option Explicit
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Public Enum DownloadResults
eSUCCESS = 0 'ÏÂÔسɹ¦
eCONNECTERROR = 1 'Á¬½Ó´íÎó
eTRANSFERERROR = 2 'Êý¾Ý´«Êä´íÎó
eWRITEERROR = 3 '±£´æ±¾µØ´íÎó
eUserStop = 4 'ÖÐÖ¹
End Enum
'ÏÂÔؽø¶Èʼþ Identifier-ÏÂÔرêʶ,RecvdBytes-ÒÑÏÂÔØ×Ö½ÚÊý,MaxBytes-×Ü×Ö½ÚÊý,PassTimer-ÒÑÓÃÏÂÔØʱ¼ä(Ãë)
Public Event DownloadProgress(Identifier As String, RecvdBytes As Long, MaxBytes As Long, PassTimer As Long)
'ÏÂÔØÍê³Éʼþ Identifier-ÏÂÔرêʶ,ccDownloadResults-ÏÂÔؽá¹û,PassTimer-ÒÑÓÃÏÂÔØʱ¼ä(Ãë)
Public Event DownloadComplete(Identifier As String, Result As DownloadResults, PassTimer As Long)
Dim FstrURL As String 'FTP ÏÂÔØ×Ö·û´®,º¬IP,¶Ë¿ÚºÅ,Óû§Ãû,ÃÜÂë,ÏÂÔصÄÎļþ¼°Æä·¾¶
Dim FstrSaveFile As String 'ÏÂÔصÄÎļþ±£´æÔÚ±¾µØµÄÎļþÃû¼°Æä·¾¶
Dim FstrIdentifier As String 'ÏÂÔرêʶ
Dim FlngStart As Long '¿ªÊ¼ÏÂÔØʱ¼ä
'ÏÂÔØÎļþ
'strURL FTP ÏÂÔØ×Ö·û´®,º¬IP,¶Ë¿ÚºÅ,Óû§Ãû,ÃÜÂë,ÏÂÔصÄÎļþ¼°Æä·¾¶
' ÐÎÈç ftp://Óû§Ãû:ÃÜÂë@FTPµØÖ·/Ŀ¼/Îļþ
'strSaveFile ±£´æʱµÄ±¾µØÎļþÃû
'strIdentifier ÏÂÔرêʶ,¿ÉÒÔͬʱÏÂÔضà¸öÎļþ,ÒÀ¾Ý´Ë×Ö·û´®Çø±ðËùÏÂÔصÄÎļþ
Public Sub DownLoad(ByVal strURL As String, ByVal strSaveFile As String, ByVal strIdentifier As String)
On Error GoTo ERRHAND
FstrURL = strURL
FstrSaveFile = strSaveFile
FstrIdentifier = strIdentifier

FlngStart = Timer

UserControl.AsyncRead strURL, vbAsyncTypeByteArray, strIdentifier, vbAsyncReadForceUpdate

Exit Sub
ERRHAND:
RaiseEvent DownloadComplete(strIdentifier, eCONNECTERROR, Timer - FlngStart)
End Sub
Private Sub UserControl_AsyncReadComplete(AsyncProp As AsyncProperty)
On Error GoTo Errs


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