Attribute VB_Name = "VBZipBas" Option Explicit '--------------------------------------------------------------- '-- Please Do Not Remove These Comments!!! '--------------------------------------------------------------- '-- Sample VB 5 code to drive zip32.dll '-- Contributed to the Info-ZIP project by Mike Le Voi '-- '-- Contact me at: mlevoi@modemss.brisnet.org.au '-- '-- Visit my home page at: http://modemss.brisnet.org.au/~mlevoi '-- '-- Use this code at your own risk. Nothing implied or warranted '-- to work on your machine :-) '--------------------------------------------------------------- '-- '-- The Source Code Is Freely Available From Info-ZIP At: '-- http://www.cdrom.com/pub/infozip/infozip.html '-- '-- A Very Special Thanks To Mr. Mike Le Voi '-- And Mr. Mike White Of The Info-ZIP '-- For Letting Me Use And Modify His Orginal '-- Visual Basic 5.0 Code! Thank You Mike Le Voi. '--------------------------------------------------------------- '-- '-- Contributed To The Info-ZIP Project By Raymond L. King '-- Modified June 21, 1998 '-- By Raymond L. King '-- Custom Software Designers '-- '-- Contact Me At: king@ntplx.net '-- ICQ 434355 '-- Or Visit Our Home Page At: http://www.ntplx.net/~king '-- '--------------------------------------------------------------- ' ' This is the original example with some small changes. Only ' use with the original Zip32.dll (compiled from Zip 2.31 or ' later). Do not use this VB example with Zip32z64.dll ' (compiled from Zip 3.0). To check the version of a dll, ' right click on the file and check properties. ' ' 6/24/2008 Ed Gordon '--------------------------------------------------------------- ' Usage notes: ' ' This code uses Zip32.dll. You DO NOT need to register the ' DLL to use it. You also DO NOT need to reference it in your ' VB project. You DO have to copy the DLL to your SYSTEM ' directory, your VB project directory, or place it in a directory ' on your command PATH. ' ' A bug has been found in the Zip32.dll when called from VB. If ' you try to pass any values other than NULL in the ZPOPT strings ' Date, szRootDir, or szTempDir they get converted from the ' VB internal wide character format to temporary byte strings by ' the calling interface as they are supposed to. However when ' ZpSetOptions returns the passed strings are deallocated unless the ' VB debugger prevents it by a break between ZpSetOptions and ' ZpArchive. When Zip32.dll uses these pointers later it ' can result in unpredictable behavior. A kluge is available ' for Zip32.dll, just replacing api.c in Zip 2.3, but better to just ' use the new Zip32z64.dll where these bugs are fixed. However, ' the kluge has been added to Zip 2.31 and later and these are ' now stable. To determine the version of the dll you have ' right click on it, select the Version tab, and verify the ' Product Version is at least 2.31. ' ' Another bug is where -R is used with some other options and can ' crash the dll. This is a bug in how zip processes the command ' line and should be mostly fixed in Zip 2.31. If you run into ' problems try using -r instead for recursion. The bug is fixed ' in Zip 3.0 but note that Zip 3.0 creates dll zip32z64.dll and ' it is not compatible with older VB including this example. See ' the new VB example code included with Zip 3.0 for calling ' interface changes. ' ' Note that Zip32 is probably not thread safe. It may be made ' thread safe in a later version, but for now only one thread in ' one program should use the DLL at a time. Unlike Zip, UnZip is ' probably thread safe, but an exception to this has been ' found. See the UnZip documentation for the latest on this. ' ' All code in this VB project is provided under the Info-Zip license. ' ' If you have any questions please contact Info-Zip at ' http://www.info-zip.org. ' ' 4/29/2004 EG (Updated 3/1/2005, 6/24/2008 EG) ' '--------------------------------------------------------------- '-- C Style argv '-- Holds The Zip Archive Filenames ' Max for this just over 8000 as each pointer takes up 4 bytes and ' VB only allows 32 kB of local variables and that includes function ' parameters. - 3/19/2004 EG ' Public Type ZIPnames zFiles(0 To 99) As String End Type '-- Call Back "String" Public Type ZipCBChar ch(4096) As Byte End Type '-- ZPOPT Is Used To Set The Options In The ZIP32.DLL Public Type ZPOPT Date As String ' US Date (8 Bytes Long) "12/31/98"? szRootDir As String ' Root Directory Pathname (Up To 256 Bytes Long) szTempDir As String ' Temp Directory Pathname (Up To 256 Bytes Long) fTemp As Long ' 1 If Temp dir Wanted, Else 0 fSuffix As Long ' Include Suffixes (Not Yet Implemented!) fEncrypt As Long ' 1 If Encryption Wanted, Else 0 fSystem As Long ' 1 To Include System/Hidden Files, Else 0 fVolume As Long ' 1 If Storing Volume Label, Else 0 fExtra As Long ' 1 If Excluding Extra Attributes, Else 0 fNoDirEntries As Long ' 1 If Ignoring Directory Entries, Else 0 fExcludeDate As Long ' 1 If Excluding Files Earlier Than Specified Date, Else 0 fIncludeDate As Long ' 1 If Including Files Earlier Than Specified Date, Else 0 fVerbose As Long ' 1 If Full Messages Wanted, Else 0 fQuiet As Long ' 1 If Minimum Messages Wanted, Else 0 fCRLF_LF As Long ' 1 If Translate CR/LF To LF, Else 0 fLF_CRLF As Long ' 1 If Translate LF To CR/LF, Else 0 fJunkDir As Long ' 1 If Junking Directory Names, Else 0 fGrow As Long ' 1 If Allow Appending To Zip File, Else 0 fForce As Long ' 1 If Making Entries Using DOS File Names, Else 0 fMove As Long ' 1 If Deleting Files Added Or Updated, Else 0 fDeleteEntries As Long ' 1 If Files Passed Have To Be Deleted, Else 0 fUpdate As Long ' 1 If Updating Zip File-Overwrite Only If Newer, Else 0 fFreshen As Long ' 1 If Freshing Zip File-Overwrite Only, Else 0 fJunkSFX As Long ' 1 If Junking SFX Prefix, Else 0 fLatestTime As Long ' 1 If Setting Zip File Time To Time Of Latest File In Archive, Else 0 fComment As Long ' 1 If Putting Comment In Zip File, Else 0 fOffsets As Long ' 1 If Updating Archive Offsets For SFX Files, Else 0 fPrivilege As Long ' 1 If Not Saving Privileges, Else 0 fEncryption As Long ' Read Only Property!!! fRecurse As Long ' 1 (-r), 2 (-R) If Recursing Into Sub-Directories, Else 0 fRepair As Long ' 1 = Fix Archive, 2 = Try Harder To Fix, Else 0 flevel As Byte ' Compression Level - 0 = Stored 6 = Default 9 = Max End Type '-- This Structure Is Used For The ZIP32.DLL Function Callbacks Public Type ZIPUSERFUNCTIONS ZDLLPrnt As Long ' Callback ZIP32.DLL Print Function ZDLLCOMMENT As Long ' Callback ZIP32.DLL Comment Function ZDLLPASSWORD As Long ' Callback ZIP32.DLL Password Function ZDLLSERVICE As Long ' Callback ZIP32.DLL Service Function End Type '-- Local Declarations Public ZOPT As ZPOPT Public ZUSER As ZIPUSERFUNCTIONS '-- This Assumes ZIP32.DLL Is In Your \Windows\System Directory! '-- (alternatively, a copy of ZIP32.DLL needs to be located in the program '-- directory or in some other directory listed in PATH.) Private Declare Function ZpInit Lib "zip32.dll" _ (ByRef Zipfun As ZIPUSERFUNCTIONS) As Long '-- Set Zip Callbacks Private Declare Function ZpSetOptions Lib "zip32.dll" _ (ByRef Opts As ZPOPT) As Long '-- Set Zip Options Private Declare Function ZpGetOptions Lib "zip32.dll" _ () As ZPOPT '-- Used To Check Encryption Flag Only Private Declare Function ZpArchive Lib "zip32.dll" _ (ByVal argc As Long, ByVal funame As String, _ ByRef argv As ZIPnames) As Long '-- Real Zipping Action '------------------------------------------------------- '-- Public Variables For Setting The ZPOPT Structure... '-- (WARNING!!!) You Must Set The Options That You '-- Want The ZIP32.DLL To Do! '-- Before Calling VBZip32! '-- '-- NOTE: See The Above ZPOPT Structure Or The VBZip32 '-- Function, For The Meaning Of These Variables '-- And How To Use And Set Them!!! '-- These Parameters Must Be Set Before The Actual Call '-- To The VBZip32 Function! '------------------------------------------------------- Public zDate As String Public zRootDir As String Public zTempDir As String Public zSuffix As Integer Public zEncrypt As Integer Public zSystem As Integer Public zVolume As Integer Public zExtra As Integer Public zNoDirEntries As Integer Public zExcludeDate As Integer Public zIncludeDate As Integer Public zVerbose As Integer Public zQuiet As Integer Public zCRLF_LF As Integer Public zLF_CRLF As Integer Public zJunkDir As Integer Public zRecurse As Integer Public zGrow As Integer Public zForce As Integer Public zMove As Integer Public zDelEntries As Integer Public zUpdate As Integer Public zFreshen As Integer Public zJunkSFX As Integer Public zLatestTime As Integer Public zComment As Integer Public zOffsets As Integer Public zPrivilege As Integer Public zEncryption As Integer Public zRepair As Integer Public zLevel As Integer '-- Public Program Variables Public zArgc As Integer ' Number Of Files To Zip Up Public zZipFileName As String ' The Zip File Name ie: Myzip.zip Public zZipFileNames As ZIPnames ' File Names To Zip Up Public zZipInfo As String ' Holds The Zip File Information '-- Public Constants '-- For Zip & UnZip Error Codes! Public Const ZE_OK = 0 ' Success (No Error) Public Const ZE_EOF = 2 ' Unexpected End Of Zip File Error Public Const ZE_FORM = 3 ' Zip File Structure Error Public Const ZE_MEM = 4 ' Out Of Memory Error Public Const ZE_LOGIC = 5 ' Internal Logic Error Public Const ZE_BIG = 6 ' Entry Too Large To Split Error Public Const ZE_NOTE = 7 ' Invalid Comment Format Error Public Const ZE_TEST = 8 ' Zip Test (-T) Failed Or Out Of Memory Error Public Const ZE_ABORT = 9 ' User Interrupted Or Termination Error Public Const ZE_TEMP = 10 ' Error Using A Temp File Public Const ZE_READ = 11 ' Read Or Seek Error Public Const ZE_NONE = 12 ' Nothing To Do Error Public Const ZE_NAME = 13 ' Missing Or Empty Zip File Error Public Const ZE_WRITE = 14 ' Error Writing To A File Public Const ZE_CREAT = 15 ' Could't Open To Write Error Public Const ZE_PARMS = 16 ' Bad Command Line Argument Error Public Const ZE_OPEN = 18 ' Could Not Open A Specified File To Read Error '-- These Functions Are For The ZIP32.DLL '-- '-- Puts A Function Pointer In A Structure '-- For Use With Callbacks... Public Function FnPtr(ByVal lp As Long) As Long FnPtr = lp End Function '-- Callback For ZIP32.DLL - DLL Print Function Public Function ZDLLPrnt(ByRef fname As ZipCBChar, ByVal x As Long) As Long Dim s0 As String Dim xx As Long '-- Always Put This In Callback Routines! On Error Resume Next s0 = "" '-- Get Zip32.DLL Message For processing For xx = 0 To x If fname.ch(xx) = 0 Then Exit For Else s0 = s0 + Chr(fname.ch(xx)) End If Next '---------------------------------------------- '-- This Is Where The DLL Passes Back Messages '-- To You! You Can Change The Message Printing '-- Below Here! '---------------------------------------------- '-- Display Zip File Information '-- zZipInfo = zZipInfo & s0 Form1.Print s0; DoEvents ZDLLPrnt = 0 End Function '-- Callback For ZIP32.DLL - DLL Service Function Public Function ZDLLServ(ByRef mname As ZipCBChar, ByVal x As Long) As Long ' x is the size of the file Dim s0 As String Dim xx As Long '-- Always Put This In Callback Routines! On Error Resume Next s0 = "" '-- Get Zip32.DLL Message For processing For xx = 0 To 4096 If mname.ch(xx) = 0 Then Exit For Else s0 = s0 + Chr(mname.ch(xx)) End If Next ' Form1.Print "-- " & s0 & " - " & x & " bytes" ' This is called for each zip entry. ' mname is usually the null terminated file name and x the file size. ' s0 has trimmed file name as VB string. ' At this point, s0 contains the message passed from the DLL ' It is up to the developer to code something useful here :) ZDLLServ = 0 ' Setting this to 1 will abort the zip! End Function '-- Callback For ZIP32.DLL - DLL Password Function Public Function ZDLLPass(ByRef p As ZipCBChar, _ ByVal n As Long, ByRef m As ZipCBChar, _ ByRef Name As ZipCBChar) As Integer Dim prompt As String Dim xx As Integer Dim szpassword As String '-- Always Put This In Callback Routines! On Error Resume Next ZDLLPass = 1 '-- If There Is A Password Have The User Enter It! '-- This Can Be Changed szpassword = InputBox("Please Enter The Password!") '-- The User Did Not Enter A Password So Exit The Function If szpassword = "" Then Exit Function '-- User Entered A Password So Proccess It For xx = 0 To 255 If m.ch(xx) = 0 Then Exit For Else prompt = prompt & Chr(m.ch(xx)) End If Next For xx = 0 To n - 1 p.ch(xx) = 0 Next For xx = 0 To Len(szpassword) - 1 p.ch(xx) = Asc(Mid(szpassword, xx + 1, 1)) Next p.ch(xx) = Chr(0) ' Put Null Terminator For C ZDLLPass = 0 End Function '-- Callback For ZIP32.DLL - DLL Comment Function Public Function ZDLLComm(ByRef s1 As ZipCBChar) As Integer Dim xx%, szcomment$ '-- Always Put This In Callback Routines! On Error Resume Next ZDLLComm = 1 szcomment = InputBox("Enter the comment") If szcomment = "" Then Exit Function For xx = 0 To Len(szcomment) - 1 s1.ch(xx) = Asc(Mid$(szcomment, xx + 1, 1)) Next xx s1.ch(xx) = Chr(0) ' Put null terminator for C End Function '-- Main ZIP32.DLL Subroutine. '-- This Is Where It All Happens!!! '-- '-- (WARNING!) Do Not Change This Function!!! '-- Public Function VBZip32() As Long Dim retcode As Long On Error Resume Next '-- Nothing Will Go Wrong :-) retcode = 0 '-- Set Address Of ZIP32.DLL Callback Functions '-- (WARNING!) Do Not Change!!! ZUSER.ZDLLPrnt = FnPtr(AddressOf ZDLLPrnt) ZUSER.ZDLLPASSWORD = FnPtr(AddressOf ZDLLPass) ZUSER.ZDLLCOMMENT = FnPtr(AddressOf ZDLLComm) ZUSER.ZDLLSERVICE = FnPtr(AddressOf ZDLLServ) '-- Set ZIP32.DLL Callbacks retcode = ZpInit(ZUSER) If retcode = 0 Then MsgBox "Zip32.dll did not initialize. Is it in the current directory " & _ "or on the command path?", vbOKOnly, "VB Zip" Exit Function End If '-- Setup ZIP32 Options '-- (WARNING!) Do Not Change! ZOPT.Date = zDate ' "12/31/79"? US Date? ZOPT.szRootDir = zRootDir ' Root Directory Pathname ZOPT.szTempDir = zTempDir ' Temp Directory Pathname ZOPT.fSuffix = zSuffix ' Include Suffixes (Not Yet Implemented) ZOPT.fEncrypt = zEncrypt ' 1 If Encryption Wanted ZOPT.fSystem = zSystem ' 1 To Include System/Hidden Files ZOPT.fVolume = zVolume ' 1 If Storing Volume Label ZOPT.fExtra = zExtra ' 1 If Including Extra Attributes ZOPT.fNoDirEntries = zNoDirEntries ' 1 If Ignoring Directory Entries ZOPT.fExcludeDate = zExcludeDate ' 1 If Excluding Files Earlier Than A Specified Date ZOPT.fIncludeDate = zIncludeDate ' 1 If Including Files Earlier Than A Specified Date ZOPT.fVerbose = zVerbose ' 1 If Full Messages Wanted ZOPT.fQuiet = zQuiet ' 1 If Minimum Messages Wanted ZOPT.fCRLF_LF = zCRLF_LF ' 1 If Translate CR/LF To LF ZOPT.fLF_CRLF = zLF_CRLF ' 1 If Translate LF To CR/LF ZOPT.fJunkDir = zJunkDir ' 1 If Junking Directory Names ZOPT.fGrow = zGrow ' 1 If Allow Appending To Zip File ZOPT.fForce = zForce ' 1 If Making Entries Using DOS Names ZOPT.fMove = zMove ' 1 If Deleting Files Added Or Updated ZOPT.fDeleteEntries = zDelEntries ' 1 If Files Passed Have To Be Deleted ZOPT.fUpdate = zUpdate ' 1 If Updating Zip File-Overwrite Only If Newer ZOPT.fFreshen = zFreshen ' 1 If Freshening Zip File-Overwrite Only ZOPT.fJunkSFX = zJunkSFX ' 1 If Junking SFX Prefix ZOPT.fLatestTime = zLatestTime ' 1 If Setting Zip File Time To Time Of Latest File In Archive ZOPT.fComment = zComment ' 1 If Putting Comment In Zip File ZOPT.fOffsets = zOffsets ' 1 If Updating Archive Offsets For SFX Files ZOPT.fPrivilege = zPrivilege ' 1 If Not Saving Privelages ZOPT.fEncryption = zEncryption ' Read Only Property! ZOPT.fRecurse = zRecurse ' 1 or 2 If Recursing Into Subdirectories ZOPT.fRepair = zRepair ' 1 = Fix Archive, 2 = Try Harder To Fix ZOPT.flevel = zLevel ' Compression Level - (0 To 9) Should Be 0!!! '-- Set ZIP32.DLL Options retcode = ZpSetOptions(ZOPT) '-- Go Zip It Them Up! retcode = ZpArchive(zArgc, zZipFileName, zZipFileNames) '-- Return The Function Code VBZip32 = retcode End Function