vbAccelerator - Contents of code file: fAbout.frm

VERSION 5.00
Begin VB.Form frmAbout 
   AutoRedraw      =   -1  'True
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "About MyApp"
   ClientHeight    =   3555
   ClientLeft      =   5295
   ClientTop       =   2625
   ClientWidth     =   5730
   ClipControls    =   0   'False
   LinkTopic       =   "Form2"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2453.724
   ScaleMode       =   0  'User
   ScaleWidth      =   5380.766
   ShowInTaskbar   =   0   'False
   Begin VB.Frame fraSep 
      Height          =   75
      Left            =   -420
      TabIndex        =   7
      Top             =   2460
      Width           =   6315
   End
   Begin VB.PictureBox picIcon 
      AutoSize        =   -1  'True
      ClipControls    =   0   'False
      Height          =   540
      Left            =   240
      Picture         =   "fAbout.frx":0000
      ScaleHeight     =   337.12
      ScaleMode       =   0  'User
      ScaleWidth      =   337.12
      TabIndex        =   1
      Top             =   240
      Width           =   540
   End
   Begin VB.CommandButton cmdOK 
      Cancel          =   -1  'True
      Caption         =   "OK"
      Default         =   -1  'True
      BeginProperty Font 
         Name            =   "Tahoma"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   345
      Left            =   4245
      TabIndex        =   0
      Top             =   2625
      Width           =   1260
   End
   Begin VB.CommandButton cmdSysInfo 
      Caption         =   "&System Info..."
      BeginProperty Font 
         Name            =   "Tahoma"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   345
      Left            =   4260
      TabIndex        =   2
      Top             =   3075
      Width           =   1245
   End
   Begin VB.Label lblDescription 
      BackStyle       =   0  'Transparent
      Caption         =   "App Description"
      BeginProperty Font 
         Name            =   "Tahoma"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00000000&
      Height          =   1170
      Left            =   1080
      TabIndex        =   3
      Top             =   1125
      Width           =   3885
   End
   Begin VB.Label lblTitle 
      BackStyle       =   0  'Transparent
      Caption         =   "Application Title"
      BeginProperty Font 
         Name            =   "Tahoma"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00000000&
      Height          =   480
      Left            =   1050
      TabIndex        =   5
      Top             =   240
      Width           =   3885
   End
   Begin VB.Label lblVersion 
      BackStyle       =   0  'Transparent
      Caption         =   "Version"
      BeginProperty Font 
         Name            =   "Tahoma"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   225
      Left            =   1050
      TabIndex        =   6
      Top             =   780
      Width           =   3885
   End
   Begin VB.Label lblDisclaimer 
      BackStyle       =   0  'Transparent
      Caption         =   "Warning: ..."
      BeginProperty Font 
         Name            =   "Tahoma"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00000000&
      Height          =   825
      Left            =   255
      TabIndex        =   4
      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
Option Explicit

Private m_cTile As New cTile

' Reg Key Security Options...
Const READ_CONTROL = &H20000
Const KEY_QUERY_VALUE = &H1
Const KEY_SET_VALUE = &H2
Const KEY_CREATE_SUB_KEY = &H4
Const KEY_ENUMERATE_SUB_KEYS = &H8
Const KEY_NOTIFY = &H10
Const KEY_CREATE_LINK = &H20
Const KEY_ALL_ACCESS = KEY_QUERY_VALUE + KEY_SET_VALUE + _
                       KEY_CREATE_SUB_KEY + KEY_ENUMERATE_SUB_KEYS + _
                       KEY_NOTIFY + KEY_CREATE_LINK + READ_CONTROL
                     
' 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 = "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

Private Sub Form_Load()
    Me.Caption = "About " & App.Title
    lblVersion.Caption = "Version " & App.Major & "." & App.Minor & "." &
     App.Revision
    lblTitle.Caption = App.Title
    m_cTile.filename = App.Path & "\marb_gif.gif"
    m_cTile.TileArea Me.hDC, 0, 0, Me.Width \ Screen.TwipsPerPixelX, Me.Height
     \ Screen.TwipsPerPixelY
    Me.Refresh
End Sub

Public Sub StartSysInfo()
    On Error GoTo SysInfoErr
  
    Dim rc As Long
    Dim SysInfoPath As String
    
    ' Try To Get System Info Program Path\Name 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
    
    If (Asc(Mid(tmpVal, KeyValSize, 1)) = 0) Then           ' Win95 Adds Null
     Terminated String...
        tmpVal = Left(tmpVal, KeyValSize - 1)               ' Null Found,
         Extract From String
    Else                                                    ' WinNT Does NOT
     Null Terminate String...
        tmpVal = Left(tmpVal, KeyValSize)                   ' Null Not Found,
         Extract String Only
    End If
    '------------------------------------------------------------
    ' 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