用VB6.0自制压缩与解压缩程序(三)

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  程序|压缩用记事本打开modMain.bas文件,copy以下内容到其中:



Attribute VB_Name = "modMain"



' ==============================================

' 信息打包与展开 (启动模块)

'

' 功能 :利用系统所存在的资源自作压缩与解压缩程序

'

' 作 者 :谢家峰

' 整理日期 :2004-08-08

' Email :douhapysina.com

'

' ==============================================

'

Option Explicit



Public WindowsPath As String

Public WindowsSysPath As String



Sub Main()

Dim BootTrapPath As String

Dim SetupFilePath As String

Dim regExeFilePath As String



Dim regInfo() As String

Dim regStr() As String

Dim regFileName As String

Dim str As String



Dim resultat As Long

Dim resultat2 As Long

Dim res As Double

Dim startinfo As STARTUPINFO

Dim procinfo As PROCESS_INFORMATION

Dim secu As SECURITY_ATTRIBUTES



Dim i As Integer



If App.PrevInstance Then MsgBox "系统已启动!", , App.EXEName: End

'获得系统安装目录

WindowsPath = GetWindowsDir

WindowsSysPath = GetWindowsSysDir



Load frmMain

frmMain.Show

End Sub



用记事本打开modAPI.bas文件,copy以下内容到其中:



Attribute VB_Name = "modAPI"



' ==============================================

' 信息打包与展开 (所调用的API及通用函数模块)

'

' 功能 :利用系统所存在的资源自作压缩与解压缩程序

'

' 作 者 :谢家峰

' 整理日期 :2004-08-08

' Email :douhapysina.com

'

' ==============================================

'

Option Explicit



Public Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal lpFileName As String) As Long

Public Declare Function WritePrivateProfileString Lib "kernel32" Alias "WritePrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpString As Any, ByVal lpFileName As String) As Long



Public Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" (ByVal lpApplicationName As String, ByVal lpCommandLine As String, lpProcessAttributes As SECURITY_ATTRIBUTES, lpThreadAttributes As SECURITY_ATTRIBUTES, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, lpEnvironment As Any, ByVal lpCurrentDriectory As String, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long

Public Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long

Public Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long



Public Declare Function GetShortPathName Lib "kernel32" Alias "GetShortPathNameA" (ByVal lpszLongPath As String, ByVal lpszShortPath As String, ByVal cchBuffer As Long) As Long

Public Declare Function GetWindowsDirectory Lib "kernel32" Alias "GetWindowsDirectoryA" (ByVal lpbuffer As String, ByVal nSize As Long) As Long

Public Declare Function GetSystemDirectory Lib "kernel32" Alias "GetSystemDirectoryA" (ByVal lpbuffer As String, ByVal nSize As Long) As Long



Public Const gstrSEP_DIR$ = "\"

Public Const gstrSEP_URLDIR$ = "/"

Public Const gintMAX_SIZE% = 255



Public Const INFINITE = &HFFFF



Public Type STARTUPINFO

cb As Long

lpReserved As String

lpDesktop As String

lpTitle As String

dwX As Long

dwY As Long

dwXSize As Long

dwYSize As Long

dwXCountChars As Long

dwYCountChars As Long

dwFillAttribute As Long

dwFlags As Long

wShowWindow As Integer

cbReserved2 As Integer

lpReserved2 As Long

hStdInput As Long

hStdOutput As Long

hStdError As Long

End Type



Public Type PROCESS_INFORMATION

hProcess As Long

hThread As Long

dwProcessId As Long

dwThreadId As Long

End Type



Public Type SECURITY_ATTRIBUTES

nLength As Long

lpSecurityDescriptor As Long

bInheritHandle As Long

End Type





Function StripTerminator(ByVal strString As String) As String

Dim intZeroPos As Integer



intZeroPos = InStr(strString, Chr$(0))

If intZeroPos > 0 Then

StripTerminator = Left$(strString, intZeroPos - 1)

Else

StripTerminator = strString

End If

End Function



' -----------------------------------------------------------

' 给目录添加分割线

'

' -----------------------------------------------------------

'

Sub AddDirSep(strPathName As String)

If Right(Trim(strPathName), Len(gstrSEP_URLDIR)) <> gstrSEP_URLDIR And _

Right(Trim(strPathName), Len(gstrSEP_DIR)) <> gstrSEP_DIR Then

strPathName = RTrim$(strPathName) & gstrSEP_DIR

End If

End Sub



' -----------------------------------------------------------

' 调用API函数获得Windows的系统目录

'

' -----------------------------------------------------------

'

Function GetWindowsSysDir() As String

Dim strBuf As String



strBuf = Space$(gintMAX_SIZE)

If GetSystemDirectory(strBuf, gintMAX_SIZE) > 0 Then

strBuf = StripTerminator(strBuf)

AddDirSep strBuf



GetWindowsSysDir = strBuf

Else

GetWindowsSysDir = vbNullString

End If

End Function



' -----------------------------------------------------------

' 调用API函数获取Windows目录

'

' -----------------------------------------------------------

'

Function GetWindowsDir() As String

Dim strBuf As String



strBuf = Space$(gintMAX_SIZE)



If GetWindowsDirectory(strBuf, gintMAX_SIZE) > 0 Then

strBuf = StripTerminator$(strBuf)

AddDirSep strBuf



GetWindowsDir = strBuf

Else

GetWindowsDir = vbNullString

End If

End Function



' --------------------------------------

' 测试目录是否存在

'

' --------------------------------------

'

Public Function DirExists(Path As String) As Boolean

On Error Resume Next



'对于网络地址采用*.*形式

If InStr(Path, "\\") Then

DirExists = (Dir$(Path & "\*.*") <> "")

Else

DirExists = (Dir$(Path & "\nul") <> "")

End If

End Function



' --------------------------------------

' 建立文件夹(含多层结构)

'

' --------------------------------------

'

Public Sub CreateFloder(floder As String)

Dim i As Integer

Dim Path As String

Dim FloderStr() As String



On Error Resume Next

FloderStr = Split(floder, "\")

Path = FloderStr(0)

For i = 1 To UBound(FloderStr) - 1

Path = Path & "\" & FloderStr(i)

If Not DirExists(Path) Then

MkDir Path

End If

Next

End Sub



' --------------------------------------

' 获得长文件名的短文件名

'

' --------------------------------------

'

Function GetShortFileName(FileName As String) As String

Dim str As String

str = String(LenB(FileName), Chr(0))



If GetShortPathName(FileName, str, LenB(FileName)) <> 0 Then

str = Left(str, InStr(str, vbNullChar) - 1)

If str = "" Then

GetShortFileName = FileName

Else

GetShortFileName = str

End If

Else

GetShortFileName = FileName

End If

End Function



' --------------------------------------

' 获得文件名

'

' --------------------------------------

'

Public Function GetFileName(fileNamePath As String) As String

Dim AuxVar() As String



AuxVar() = Split(fileNamePath, "\", , vbTextCompare)

GetFileName = AuxVar(UBound(AuxVar))

End Function



' --------------------------------------

' 获得文件的扩展名

'

' --------------------------------------

'

Public Function GetExt(FileName As String) As String

Dim AuxVar() As String



On Error Resume Next

AuxVar() = Split(FileName, "\", , vbTextCompare)

AuxVar() = Split(AuxVar(UBound(AuxVar)), ".", , vbTextCompare)

GetExt = AuxVar(UBound(AuxVar))

End Function



' --------------------------------------

' 测试文件是否存在(不能测试隐含文件和系统文件)

'

' --------------------------------------

'

Public Function FileExists(FileName As String) As Boolean

On Error Resume Next

FileExists = (Dir$(FileName) <> "")

End Function



' --------------------------------------

' 查找文件

'

' --------------------------------------

'

Function GetFiles(filespec As String, Optional Attributes As VbFileAttribute) As String()

Dim result() As String

Dim FileName As String, count As Long, path2 As String

Const ALLOC_CHUNK = 50



ReDim result(0 To ALLOC_CHUNK) As String

FileName = Dir$(filespec, Attributes)

Do While Len(FileName)

count = count + 1

If count > UBound(result) Then

ReDim Preserve result(0 To count + ALLOC_CHUNK) As String

End If

result(count) = FileName

FileName = Dir$

Loop



ReDim Preserve result(0 To count) As String

GetFiles = result



End Function



' --------------------------------------

' 转换字符串

'

' --------------------------------------

'

Public Function StringFromBuffer(buffer As String) As String

Dim nPos As Long



nPos = InStr(buffer, vbNullChar)

If nPos > 0 Then

StringFromBuffer = Left$(buffer, nPos - 1)

Else

StringFromBuffer = buffer

End If

End Function



' --------------------------------------

' 写内容到文本文件中

'

' --------------------------------------

'

Sub WriteTextFileContents(text As String, FileName As String, Optional AppendMode As Boolean)

Dim fnum As Integer, isOpen As Boolean



On Error GoTo Error_Handler

fnum = FreeFile()

If AppendMode Then

Open FileName For Append As #fnum

Else

Open FileName For Output As #fnum

End If

isOpen = True

Print #fnum, text

Error_Handler:

If isOpen Then Close #fnum

If Err Then Err.Raise Err.Number, , Err.Description

End Sub



' --------------------------------------

' 读信息到Ini文件中

'

' --------------------------------------

'

Public Function ReadIniFile(ByVal strIniFile As String, ByVal strSection As String, ByVal strKey As String) As String

Dim strBuffer As String * 255



If GetPrivateProfileString(strSection, strKey, vbNullString, strBuffer, 255, strIniFile) Then

ReadIniFile = StringFromBuffer(strBuffer)

End If

End Function



' --------------------------------------

' 添加信息到ListView控件中

'

' --------------------------------------

'

Sub lstvInfo_Add(LstVControl As ListView, InfoNum As Integer, SelectedFlag As Boolean, ParamArray InfoStr())

Dim i As Integer



With LstVControl

.ListItems.Add , , Trim(InfoStr(0))

If SelectedFlag Then

.ListItems(.ListItems.count).Selected = True

Else

.ListItems(.ListItems.count).Selected = False

End If



For i = 2 To InfoNum

.ListItems(.ListItems.count).ListSubItems.Add , , Trim(InfoStr(i - 1))

Next

.ListItems(.ListItems.count).EnsureVisible

End With

End Sub

自此,代码Copy完成,这时你再打开工程,编译运行。

1. 信息打包:在frmMain窗体中点击“打包”,直至打开frmAddInfo窗体,在其中点击“添加信息”进行信息添加项,同时,你也可以修改目标信息的路径及文件(说明修改完成后,别忘了点击“修改信息”信息按钮噢),你也可以给你的压缩包修改一个名字。最后点击“信息打包”按钮,进行打包;

2. 信息包展开:打包完成,你可以通过frmMain窗体中的展开程序进行压缩包展开,该展开形式对于存在的文件将覆盖,你可以修给代码,使之符合你自己的要求;

3. 你可以将你的压缩和该程序一同发给你的客户,这样,客户通过展开按钮便可以给你的程序进行信息更新了;

4. 你也可以将这些代码变通形式内嵌在你的程序中,通过文件关联,直接打开你的包文件,这样会更有趣;

5. 若你是Dephi或C++程序员,我相信你看了代码后,用你的方式做起来会更简单。



J 若仍不明白,或需求源代码,请来信告诉我,请来信告诉我,我会尽量满足你的要求!


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