frmabout.frm

一个资料管理系统的源程序

      Left            =   1590
      Picture         =   "frmAbout.frx":2328E
      Stretch         =   -1  'True
      Top             =   4770
      Width           =   285
   End
   Begin VB.Image imgWindowLeft 
      Height          =   450
      Left            =   1950
      Picture         =   "frmAbout.frx":239D8
      Stretch         =   -1  'True
      Top             =   4770
      Width           =   285
   End
   Begin VB.Image imgWindowRight 
      Height          =   450
      Left            =   2310
      Picture         =   "frmAbout.frx":24122
      Stretch         =   -1  'True
      Top             =   4770
      Width           =   285
   End
   Begin VB.Image imgTitleMain 
      Height          =   450
      Left            =   1230
      Picture         =   "frmAbout.frx":2486C
      Stretch         =   -1  'True
      Top             =   4740
      Width           =   285
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      BackColor       =   &H00CFCFCF&
      Caption         =   "资料管理自动化"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   180
      Left            =   3870
      TabIndex        =   4
      Top             =   600
      Width           =   1380
   End
   Begin VB.Label lblDescription 
      BackColor       =   &H00CFCFCF&
      Caption         =   "描述:办公自动化"
      ForeColor       =   &H00000000&
      Height          =   1170
      Left            =   3870
      TabIndex        =   2
      Tag             =   "应用程序描述"
      Top             =   1545
      Width           =   1815
      WordWrap        =   -1  'True
   End
   Begin VB.Line Line1 
      BorderColor     =   &H00808080&
      BorderStyle     =   6  'Inside Solid
      Index           =   1
      X1              =   225
      X2              =   5760
      Y1              =   2850
      Y2              =   2850
   End
   Begin VB.Line Line1 
      BorderColor     =   &H00FFFFFF&
      BorderWidth     =   2
      Index           =   0
      X1              =   210
      X2              =   5627
      Y1              =   2865
      Y2              =   2865
   End
   Begin VB.Label lblVersion 
      BackColor       =   &H00CFCFCF&
      Caption         =   "版本：Ver1.1"
      Height          =   225
      Left            =   3870
      TabIndex        =   1
      Tag             =   "版本"
      Top             =   1080
      Width           =   1815
   End
End
Attribute VB_Name = "frmAbout"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' 注册键安全选项...
Const KEY_ALL_ACCESS = &H2003F
' 注册键根类型...
Const HKEY_LOCAL_MACHINE = &H80000002
Const ERROR_SUCCESS = 0
Const REG_SZ = 1                         ' Unicode 空结尾字符串
Const REG_DWORD = 4                      ' 32位数
Const gREGKEYSYSINFOLOC = "SOFTWARE\Microsoft\Shared Tools Location"
Const gREGVALSYSINFOLOC = "MSINFO"
Const gREGKEYSYSINFO = "SOFTWARE\Microsoft\Shared Tools\MSINFO"
Const gREGVALSYSINFO = "PATH"
Private Declare Function RegOpenKeyEx Lib "advapi32" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, ByRef phkResult As Long) As Long
Private Declare Function RegQueryValueEx Lib "advapi32" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, ByRef lpType As Long, ByVal lpData As String, ByRef lpcbData As Long) As Long
Private Declare Function RegCloseKey Lib "advapi32" (ByVal hKey As Long) As Long
Private Sub cmdSysInfo_Click()
        Call StartSysInfo
End Sub
Private Sub cmdOK_click()
        Unload Me
End Sub
Public Sub StartSysInfo()
    On Error GoTo SysInfoErr


        Dim rc As Long
        Dim SysInfoPath As String
        

        ' 从注册表获得系统信息程序路径\名称...
        If GetKeyValue(HKEY_LOCAL_MACHINE, gREGKEYSYSINFO, gREGVALSYSINFO, SysInfoPath) Then
        ' 仅从注册表获得系统信息程序路径...
        ElseIf GetKeyValue(HKEY_LOCAL_MACHINE, gREGKEYSYSINFOLOC, gREGVALSYSINFOLOC, SysInfoPath) Then
                ' 验证已知的 32 位文件版本的存在
                If (Dir(SysInfoPath & "\MSINFO32.EXE") <> "") Then
                        SysInfoPath = SysInfoPath & "\MSINFO32.EXE"
                        

                ' 错误 - 文件找不到...
                Else
                        GoTo SysInfoErr
                End If
        ' 错误 - 注册表项找不到...
        Else
                GoTo SysInfoErr
        End If
        

        Call Shell(SysInfoPath, vbNormalFocus)
        

        Exit Sub
SysInfoErr:
        MsgBox "此时系统信息不可用", vbOKOnly
End Sub


Public Function GetKeyValue(KeyRoot As Long, KeyName As String, SubKeyRef As String, ByRef KeyVal As String) As Boolean
        Dim i As Long                                           ' 循环记数器
        Dim rc As Long                                          ' 返回代码
        Dim hKey As Long                                        ' 打开的注册表键句柄
        Dim hDepth As Long                                      '
        Dim KeyValType As Long                                  ' 注册表键数据类型
        Dim tmpVal As String                                    ' 临时存储一个注册表键值
        Dim KeyValSize As Long                                  ' 注册表键变量大小
        '------------------------------------------------------------
        ' 在键根{HKEY_LOCAL_MACHINE...}之下打开注册键
        '------------------------------------------------------------
        rc = RegOpenKeyEx(KeyRoot, KeyName, 0, KEY_ALL_ACCESS, hKey) ' 打开注册表键
        

        If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError          ' 错误处理...
        

        tmpVal = String$(1024, 0)                             ' 分配变量空间
        KeyValSize = 1024                                       ' 标记变量大小
        

        '------------------------------------------------------------
        ' 检索注册表键值...
        '------------------------------------------------------------
        rc = RegQueryValueEx(hKey, SubKeyRef, 0, KeyValType, tmpVal, KeyValSize)    ' 获得/创建键值
                                                

        If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError          ' 错误处理
      

        tmpVal = VBA.Left(tmpVal, InStr(tmpVal, VBA.Chr(0)) - 1)


        '------------------------------------------------------------
        ' 决定转换的键值类型...
        '------------------------------------------------------------
        Select Case KeyValType                                  ' 搜索数据类型...
        Case REG_SZ                                             ' 字符串注册表键数据类型
                KeyVal = tmpVal                                     ' 复制字符串值
        Case REG_DWORD                                          ' 双精度注册表键数据类型
                For i = Len(tmpVal) To 1 Step -1                    ' 转换每一页
                        KeyVal = KeyVal + Hex(Asc(Mid(tmpVal, i, 1)))   ' 一个字符一个字符地生成值
                Next
                KeyVal = Format$("&h" + KeyVal)                     ' 转换双精度为字符串
        End Select
        

        GetKeyValue = True                                      ' 返回成功
        rc = RegCloseKey(hKey)                                  ' 关闭注册表键
        Exit Function                                           ' 退出
        

GetKeyError:    ' Cleanup After An Error Has Occured...
        KeyVal = ""                                             ' 设返回值为空字符串
        GetKeyValue = False                                     ' 返回失败
        rc = RegCloseKey(hKey)                                  ' 关闭注册表键
End Function

Private Sub Form_Load()
 MakeWindow Me
End Sub
Private Sub imgTitleClose_Click()
 Unload Me
End Sub

Private Sub imgTitleLeft_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    DoDrag Me
End Sub

Private Sub imgTitleMain_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    DoDrag Me
End Sub

Private Sub imgTitleMinimize_Click()
    Me.WindowState = 1
End Sub

Private Sub imgTitleRight_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    DoDrag Me
End Sub

Private Sub lblTitle_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
    DoDrag Me
End Sub