checkno.frm

用microsoft vb6.0写的上班考勤系统！

VERSION 5.00
Begin VB.Form Form2 
   Caption         =   "Form2"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form2"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text1 
      Height          =   615
      Left            =   1560
      TabIndex        =   0
      Text            =   "c"
      Top             =   1200
      Width           =   975
   End
End
Attribute VB_Name = "Form2"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Public Rst As ADODB.Recordset
Public Cnn As ADODB.Connection
Public AA
Private Declare Function GetVolumeInformation Lib _
"kernel32.dll" Alias "GetVolumeInformationA" (ByVal _
lpRootPathName As String, ByVal lpVolumeNameBuffer As _
String, ByVal nVolumeNameSize As Integer, _
lpVolumeSerialNumber As Long, lpMaximumComponentLength _
As Long, lpFileSystemFlags As Long, ByVal _
lpFileSystemNameBuffer As String, ByVal _
nFileSystemNameSize As Long) As Long

Private Sub Form_Load()
Set Cnn = New ADODB.Connection
Cnn.Open "kaoqin", "andy", "1234"
AA = GetSerialNumber(Text1.Text + ":\")
Set Rst = New ADODB.Recordset
Rst.Open "select * from systemno", Cnn, adOpenStatic, adLockBatchOptimistic, adCmdText
If Rst.EOF Then
 Rst.AddNew
  Rst.Fields(0) = AA
 Rst.UpdateBatch
 MsgBox "加入成功", vbOKOnly, ""
Else
 MsgBox "不能加入", vbOKOnly, ""
 Unload Me
End If
Unload Me
End Sub
Function GetSerialNumber(strDrive As String) As Long

Dim SerialNum As Long

Dim Res As Long

Dim Temp1, AA As String

Dim Temp2 As String

Temp1 = String$(255, Chr$(0))

Temp2 = String$(255, Chr$(0))

Res = GetVolumeInformation(strDrive, Temp1, _
Len(Temp1), SerialNum, 0, 0, Temp2, Len(Temp2))
AA = SerialNum
GetSerialNumber = SerialNum

End Function