frmabout.frm

电子皮带秤计量管理系统.完成电子皮带秤的自动计量工作,和销售管理系统配合使用更佳.

VERSION 5.00
Begin VB.Form frmAbout 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "关于作者"
   ClientHeight    =   4410
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   2925
   ClipControls    =   0   'False
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   4410
   ScaleWidth      =   2925
   ShowInTaskbar   =   0   'False
   StartUpPosition =   1  '所有者中心
   Tag             =   "关于 老虎"
   Begin VB.PictureBox Picture1 
      BackColor       =   &H00C0C0C0&
      Height          =   3705
      Left            =   180
      ScaleHeight     =   3645
      ScaleWidth      =   2535
      TabIndex        =   2
      Top             =   120
      Width           =   2595
      Begin VB.Frame Frame1 
         BackColor       =   &H8000000B&
         Height          =   675
         Left            =   60
         TabIndex        =   3
         Top             =   -30
         Width           =   2415
         Begin VB.Label Label1 
            Caption         =   "耿锐  [e-mail]  三原称重技术公司 工程部"
            Height          =   375
            Left            =   150
            TabIndex        =   4
            Top             =   210
            Width           =   2175
         End
      End
      Begin VB.Label Label2 
         BackStyle       =   0  'Transparent
         Caption         =   "我有梦想，            我在努力，            所以我快乐。"
         BeginProperty Font 
            Name            =   "幼圆"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00FFFFFF&
         Height          =   645
         Left            =   90
         TabIndex        =   5
         Top             =   840
         Width           =   2265
      End
      Begin VB.Image Image1 
         Height          =   3015
         Left            =   0
         Picture         =   "frmAbout.frx":0000
         Top             =   690
         Width           =   2610
      End
   End
   Begin VB.CommandButton cmdOK 
      Cancel          =   -1  'True
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   345
      Left            =   1530
      TabIndex        =   1
      Tag             =   "确定"
      Top             =   3960
      Width           =   1230
   End
   Begin VB.CommandButton cmdSysInfo 
      Caption         =   "系统信息(&S)"
      Height          =   345
      Left            =   240
      TabIndex        =   0
      Tag             =   "系统信息(&S)..."
      Top             =   3960
      Width           =   1215
   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