frmAbout.frm
资源名称:图书馆管理系统11.rar [点击查看]
上传用户:wang_li173
上传日期:2007-06-22
资源大小:43k
文件大小:9k
源码类别:
系统设计方案
开发平台:
Visual Basic
- VERSION 5.00
- Begin VB.Form frmAbout
- BorderStyle = 3 'Fixed Dialog
- Caption = "About Library_MIS"
- ClientHeight = 3636
- ClientLeft = 36
- ClientTop = 336
- ClientWidth = 5892
- ClipControls = 0 'False
- LinkTopic = "Form1"
- MaxButton = 0 'False
- MinButton = 0 'False
- ScaleHeight = 3636
- ScaleWidth = 5892
- ShowInTaskbar = 0 'False
- StartUpPosition = 1 'CenterOwner
- Tag = "About Library_MIS"
- Begin VB.PictureBox picIcon
- AutoSize = -1 'True
- BackColor = &H00C0C0C0&
- ClipControls = 0 'False
- Height = 432
- Left = 240
- Picture = "frmAbout.frx":0000
- ScaleHeight = 374.634
- ScaleMode = 0 'User
- ScaleWidth = 374.634
- TabIndex = 2
- TabStop = 0 'False
- Top = 240
- Width = 432
- End
- Begin VB.CommandButton cmdOK
- Cancel = -1 'True
- Caption = "OK"
- Default = -1 'True
- Height = 345
- Left = 4245
- TabIndex = 0
- Tag = "OK"
- Top = 2625
- Width = 1467
- End
- Begin VB.CommandButton cmdSysInfo
- Caption = "&System Info..."
- Height = 345
- Left = 4260
- TabIndex = 1
- Tag = "&System Info..."
- Top = 3075
- Width = 1452
- End
- Begin VB.Label lblDescription
- Caption = "App Description"
- ForeColor = &H00000000&
- Height = 1170
- Left = 1050
- TabIndex = 6
- Tag = "App Description"
- Top = 1125
- Width = 4092
- End
- Begin VB.Label lblTitle
- Caption = "Application Title"
- ForeColor = &H00000000&
- Height = 480
- Left = 1050
- TabIndex = 5
- Tag = "Application Title"
- Top = 240
- Width = 4092
- End
- Begin VB.Line Line1
- BorderColor = &H00808080&
- BorderStyle = 6 'Inside Solid
- Index = 1
- X1 = 225
- X2 = 5657
- Y1 = 2430
- Y2 = 2430
- End
- Begin VB.Line Line1
- BorderColor = &H00FFFFFF&
- BorderWidth = 2
- Index = 0
- X1 = 240
- X2 = 5657
- Y1 = 2445
- Y2 = 2445
- End
- Begin VB.Label lblVersion
- Caption = "Version"
- Height = 225
- Left = 1050
- TabIndex = 4
- Tag = "Version"
- Top = 780
- Width = 4092
- End
- Begin VB.Label lblDisclaimer
- Caption = "Warning: ..."
- ForeColor = &H00000000&
- Height = 825
- Left = 255
- TabIndex = 3
- Tag = "Warning: ..."
- Top = 2625
- Width = 3870
- End
- End
- Attribute VB_Name = "frmAbout"
- Attribute VB_GlobalNameSpace = False
- Attribute VB_Creatable = False
- Attribute VB_PredeclaredId = True
- Attribute VB_Exposed = False
- ' Reg Key Security Options...
- Const KEY_ALL_ACCESS = &H2003F
- ' Reg Key ROOT Types...
- Const HKEY_LOCAL_MACHINE = &H80000002
- Const ERROR_SUCCESS = 0
- Const REG_SZ = 1 ' Unicode nul terminated string
- Const REG_DWORD = 4 ' 32-bit number
- Const gREGKEYSYSINFOLOC = "SOFTWAREMicrosoftShared Tools Location"
- Const gREGVALSYSINFOLOC = "MSINFO"
- Const gREGKEYSYSINFO = "SOFTWAREMicrosoftShared ToolsMSINFO"
- 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 Form_Load()
- lblVersion.Caption = "Version " & App.Major & "." & App.Minor & "." & App.Revision
- lblTitle.Caption = App.Title
- End Sub
- 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
- ' Try To Get System Info Program PathName From Registry...
- If GetKeyValue(HKEY_LOCAL_MACHINE, gREGKEYSYSINFO, gREGVALSYSINFO, SysInfoPath) Then
- ' Try To Get System Info Program Path Only From Registry...
- ElseIf GetKeyValue(HKEY_LOCAL_MACHINE, gREGKEYSYSINFOLOC, gREGVALSYSINFOLOC, SysInfoPath) Then
- ' Validate Existance Of Known 32 Bit File Version
- If (Dir(SysInfoPath & "MSINFO32.EXE") <> "") Then
- SysInfoPath = SysInfoPath & "MSINFO32.EXE"
- ' Error - File Can Not Be Found...
- Else
- GoTo SysInfoErr
- End If
- ' Error - Registry Entry Can Not Be Found...
- Else
- GoTo SysInfoErr
- End If
- Call Shell(SysInfoPath, vbNormalFocus)
- Exit Sub
- SysInfoErr:
- MsgBox "System Information Is Unavailable At This Time", 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 ' Loop Counter
- Dim rc As Long ' Return Code
- Dim hKey As Long ' Handle To An Open Registry Key
- Dim hDepth As Long '
- Dim KeyValType As Long ' Data Type Of A Registry Key
- Dim tmpVal As String ' Tempory Storage For A Registry Key Value
- Dim KeyValSize As Long ' Size Of Registry Key Variable
- '------------------------------------------------------------
- ' Open RegKey Under KeyRoot {HKEY_LOCAL_MACHINE...}
- '------------------------------------------------------------
- rc = RegOpenKeyEx(KeyRoot, KeyName, 0, KEY_ALL_ACCESS, hKey) ' Open Registry Key
- If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError ' Handle Error...
- tmpVal = String$(1024, 0) ' Allocate Variable Space
- KeyValSize = 1024 ' Mark Variable Size
- '------------------------------------------------------------
- ' Retrieve Registry Key Value...
- '------------------------------------------------------------
- rc = RegQueryValueEx(hKey, SubKeyRef, 0, KeyValType, tmpVal, KeyValSize) ' Get/Create Key Value
- If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError ' Handle Errors
- tmpVal = VBA.Left(tmpVal, InStr(tmpVal, VBA.Chr(0)) - 1)
- '------------------------------------------------------------
- ' Determine Key Value Type For Conversion...
- '------------------------------------------------------------
- Select Case KeyValType ' Search Data Types...
- Case REG_SZ ' String Registry Key Data Type
- KeyVal = tmpVal ' Copy String Value
- Case REG_DWORD ' Double Word Registry Key Data Type
- For i = Len(tmpVal) To 1 Step -1 ' Convert Each Bit
- KeyVal = KeyVal + Hex(Asc(Mid(tmpVal, i, 1))) ' Build Value Char. By Char.
- Next
- KeyVal = Format$("&h" + KeyVal) ' Convert Double Word To String
- End Select
- GetKeyValue = True ' Return Success
- rc = RegCloseKey(hKey) ' Close Registry Key
- Exit Function ' Exit
- GetKeyError: ' Cleanup After An Error Has Occured...
- KeyVal = "" ' Set Return Val To Empty String
- GetKeyValue = False ' Return Failure
- rc = RegCloseKey(hKey) ' Close Registry Key
- End Function