codice:
Option Explicit
Private Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long
Private Declare Function GetTempFileName Lib "Kernel32" Alias _
"GetTempFileNameA" (ByVal lpszPath As String, _
ByVal lpPrefixString As String, ByVal wUnique As Long, _
ByVal lpTempFileName As String) As Long
Private Declare Function GetTempPath Lib "Kernel32" Alias "GetTempPathA" (ByVal _
nBufferLength As Long, ByVal lpBuffer As String) As Long
' Creates a temporary (0 byte) file in the \TEMP directory
' and returns its name
Public Function GetTempFile(Optional Prefix As String) As String
Dim TempFile As String
Dim TempPath As String
Const MAX_PATH = 260
' get the path of the \TEMP directory
TempPath = Space$(MAX_PATH)
GetTempPath Len(TempPath), TempPath
' trim off characters in excess
TempPath = Left$(TempPath, InStr(TempPath & vbNullChar, vbNullChar) - 1)
' get the name of a temporary file in that path, with a given prefix
TempFile = Space$(MAX_PATH)
GetTempFileName TempPath, Prefix, 0, TempFile
GetTempFile = Left$(TempFile, InStr(TempFile & vbNullChar, vbNullChar) - 1)
End Function
Public Sub DownloadURL(ByVal URL As String, ByVal DestinationFile As String)
Dim ret As Long
ret = URLDownloadToFile(0, URL, DestinationFile, 0, 0)
If ret <> 0 Then
Err.Raise ret, "DownloadURL", "Impossibile scaricare l'URL """ & URL & """ in """ & DestinationFile & """." & vbCrLf & "Codice di errore di URLDownloadToFile: " & LTrim(CStr(ret)) & "."
End If
End Sub
Public Sub TuaMacro()
Dim tempFileName As String, fileId As Integer
tempFileName = GetTempFile()
DownloadURL "http://www.mitalia.net/irfanpaint/downcount.txt", tempFileName
fileId = FreeFile()
Open tempFileName For Binary As fileId
MsgBox Input$(LOF(fileId), fileId)
Close fileId
Kill tempFileName
End Sub