VERSION 5.00
Begin VB.Form FrmReturn 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "圖書歸還"
   ClientHeight    =   2055
   ClientLeft      =   45
   ClientTop       =   360
   ClientWidth     =   4320
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   ScaleHeight     =   2055
   ScaleWidth      =   4320
   Begin VB.TextBox TextRtBkNum 
      Height          =   375
      Left            =   1560
      MultiLine       =   -1  'True
      TabIndex        =   2
      Top             =   1080
      Width           =   2655
   End
   Begin VB.CommandButton CmdReturn 
      Caption         =   "確定"
      Height          =   375
      Left            =   1680
      TabIndex        =   1
      Top             =   1560
      Width           =   1095
   End
   Begin VB.CommandButton CmdCancel 
      Cancel          =   -1  'True
      Caption         =   "取消"
      Height          =   375
      Left            =   3120
      TabIndex        =   0
      Top             =   1560
      Width           =   1095
   End
   Begin VB.Label Label1 
      Caption         =   "請手動輸入或通過讀卡器讀入需要歸還的圖書號："
      BeginProperty Font 
         Name            =   "楷體_GB2312"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   615
      Left            =   360
      TabIndex        =   4
      Top             =   240
      Width           =   3495
   End
   Begin VB.Label Label2 
      Caption         =   "圖書號："
      BeginProperty Font 
         Name            =   "楷體_GB2312"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   360
      TabIndex        =   3
      Top             =   1080
      Width           =   1455
   End
End
Attribute VB_Name = "FrmReturn"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub CmdCancel_Click()   '取消
    Unload Me
End Sub

'歸還圖書
Private Sub CmdReturn_Click()
Dim str As String
    
    '檢驗輸入內容
    If Len(Trim(Me.TextRtBkNum.Text)) <= 0 Then
        MsgBox "請輸入圖書號！"
        Exit Sub
    ElseIf Len(Trim(Me.TextRtBkNum.Text)) > 8 Then
        MsgBox "您輸入的書號過長！"
        Exit Sub
    ElseIf Val(Me.TextRtBkNum.Text) = 0 Then
        MsgBox "書號必須為整數且不能為0！"
        Exit Sub
    End If
    
    '生成要發送的數據 = Return， Rec_BkNum
    str = "Return," & Trim(Me.TextRtBkNum.Text)
    '檢驗sock連接并向服務器發送數據
    If MDIFrm.SockToSvr.State <> sckConnected Then
        MsgBox "還沒有連接數據庫，不能發送請求！"
        Exit Sub
    End If
    MDIFrm.SockToSvr.SendData str
    Unload Me

End Sub