用VB6.0自制压缩与解压缩程序(三)
来源：岁月联盟
时间：2004-10-14
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 :douhapy@sina.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 :douhapy@sina.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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