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Allgemeine DiskussionenRe: Unrar.dll | |  | Autor: DA rUla | Datum: 09.08.02 13:01 |
| Hi, ist zwar mit spanischen Kommentaren, aber ich denke das wird dir helfen
Gruss
-DA rUla-
‘
‘ Programa que le permite
extraer fichero RAR, soporta protección por clave
‘
‘
‘ declaraciones
‘
Option Explicit
‘ Necesita la DLL UNRAR
‘ Constantes para abrir
Private Const RAR_OM_LIST As Byte = 0
Private Const RAR_OM_EXTRACT As Byte = 1
' Constantes de errores
Private Const ERAR_NO_MEMORY As Byte = 11
Private Const ERAR_BAD_DATA As Byte = 12
Private Const ERAR_BAD_ARCHIVE As Byte = 13
Private Const ERAR_EOPEN As Byte = 15
Private Const ERAR_UNKNOWN_FORMAT As Byte = 14
Private Const ERAR_SMALL_BUF As Byte = 20
Private Const ERAR_ECLOSE As Byte = 17
Private Const ERAR_END_ARCHIVE As Byte = 10
Private Const ERAR_ECREATE As Byte = 16
Private Const ERAR_EREAD As Byte = 18
Private Const ERAR_EWRITE As Byte = 19
' Constantes operaciones
Private Const RAR_SKIP As Byte = 0
Private Const RAR_TEST As Byte = 1
Private Const RAR_EXTRACT As Byte = 2
' Constantes del volumen
Private Const RAR_VOL_ASK As Byte = 0
Private Const RAR_VOL_NOTIFY As Byte = 1
' User Defined Types
Private Type RARHeaderData
ArcName As String * 260
FileName As String * 260
Flags As Long
PackSize As Long
UnpSize As Long
HostOS As Long
FileCRC As Long
FileTime As Long
UnpVer As Long
Method As Long
FileAttr As Long
CmtBuf As String ' Pointer (char *CmtBuf in C)
CmtBufSize As Long
CmtSize As Long
CmtState As Long
End Type
Private Type RAROpenArchiveData
ArcName As String ' Pointer (char *ArcName in C)
OpenMode As Long
OpenResult As Long
CmtBuf As String ' Pointer (char *CmtBuf in C)
CmtBufSize As Long
CmtSize As Long
CmtState As Long
End Type
' RAR DLL
Public Declare Function RAROpen Lib "UnRAR.dll" Alias
"RAROpenArchive" (ByRef RAROpenData As RAROpenArchiveData) As Long
Public Declare Function RARClose Lib "UnRAR.dll" Alias
"RARCloseArchive" (ByVal HandleToArchive As Long) As Long
Public Declare Function RARReadHdr Lib "UnRAR.dll" Alias
"RARReadHeader" (ByVal HandleToArcRecord As Long, ByRef ArcHeaderRead
As RARHeaderData) As Long
Public Declare Function RARProcFile Lib "UnRAR.dll" Alias
"RARProcessFile" (ByVal HandleToArcHeader As Long, ByVal Operation As
Long, ByVal DestPath As String, ByVal DestName As String) As Long
Public Declare Sub RARSetChangeVolProc Lib "UnRAR.dll" (ByVal
HandleToArchive As Long, ByVal Mode As Long)
Public Declare Sub RARSetPassword Lib "UnRAR.dll" (ByVal
HandleToArchive As Long, ByVal Password As String)
‘
‘ código
‘
Function RARExtract(ByVal sRARArchive As String, ByVal sDestPath As
String, Optional ByVal sPassword As String) As Integer
' Parámetros
' sRARArchive = nombre del fichero RAR
' sDestPath = Directorio de destino
' sPassword = Clave
(Opcional)
' REtorna
' Entero = 0
Falla
' -1 Fallo al
abrir el fichero RAR
' >0
Número de ficheros extraidos
Dim lHandle As Long
Dim lStatus As Long
Dim uRAR As RAROpenArchiveData
Dim uHeader As RARHeaderData
Dim iFileCount As Integer
RARExtract = -1
' Open the RAR
uRAR.ArcName = sRARArchive
uRAR.OpenMode =
RAR_OM_EXTRACT
lHandle = RAROpen(uRAR)
' Failed to open RAR ?
If uRAR.OpenResult <> 0
Then Exit Function
' Password ?
If sPassword <>
"" Then
RARSetPassword lHandle,
sPassword
End If
' Extract file(s)...
iFileCount = 0
' Is there at lease one
archived file to extract ?
lStatus = RARReadHdr(lHandle,
uHeader)
Do Until lStatus <> 0
' Process (extract) the
current file within the archive
If RARProcFile(lHandle,
RAR_EXTRACT, "", sDestPath + uHeader.FileName) = 0 Then
iFileCount =
iFileCount + 1
End If
' Is there another
archived file in this RAR ?
lStatus =
RARReadHdr(lHandle, uHeader)
Loop
' Close the RAR
RARClose lHandle
' Return
RARExtract = iFileCount
End Function |  |
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