Back in December of 2003 I created a Tic-Tac-Toe application in Visual Basic 6.
Below is the code from MainWin.frm, which should be sufficient to create the application.
This code is covered by a Creative Commons Attribution-NonCommercial 3.0 license.
VERSION 5.00
Begin VB.Form Form1
Caption = "Tic-Tac-Toe"
ClientHeight = 3255
ClientLeft = 4410
ClientTop = 3255
ClientWidth = 4080
LinkTopic = "Form1"
ScaleHeight = 3255
ScaleWidth = 4080
Begin VB.CommandButton AboutThis
Caption = "&About"
Height = 495
Left = 2760
TabIndex = 12
Top = 2760
Width = 1215
End
Begin VB.CommandButton Command10
Caption = "&Clear/Restart"
Height = 495
Left = 1440
TabIndex = 9
Top = 2760
Width = 1215
End
Begin VB.CommandButton Command9
Caption = "Empty"
Height = 495
Left = 2760
TabIndex = 8
Top = 2040
Width = 1215
End
Begin VB.CommandButton Command8
Caption = "Empty"
Height = 495
Left = 1440
TabIndex = 7
Top = 2040
Width = 1215
End
Begin VB.CommandButton Command7
Caption = "Empty"
Height = 495
Left = 120
TabIndex = 6
Top = 2040
Width = 1215
End
Begin VB.CommandButton Command6
Caption = "Empty"
Height = 495
Left = 2760
TabIndex = 5
Top = 1440
Width = 1215
End
Begin VB.CommandButton Command5
Caption = "Empty"
Height = 495
Left = 1440
TabIndex = 4
Top = 1440
Width = 1215
End
Begin VB.CommandButton Command4
Caption = "Empty"
Height = 495
Left = 120
TabIndex = 3
Top = 1440
Width = 1215
End
Begin VB.CommandButton Command3
Caption = "Empty"
Height = 495
Left = 2760
TabIndex = 2
Top = 840
Width = 1215
End
Begin VB.CommandButton Command2
Caption = "Empty"
Height = 495
Left = 1440
TabIndex = 1
Top = 840
Width = 1215
End
Begin VB.CommandButton Command1
Caption = "Empty"
Height = 495
Left = 120
TabIndex = 0
Top = 840
Width = 1215
End
Begin VB.Label Label2
Caption = "2) Press 'Clear/Restart' to clear the board."
Height = 255
Left = 120
TabIndex = 11
Top = 360
Width = 3855
End
Begin VB.Label Label1
Caption = "1) Click once for an 'X', twice for an 'O'."
Height = 255
Left = 120
TabIndex = 10
Top = 120
Width = 3855
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub AboutThis_Click()
MsgBox "Copyright 2003 James Skemp - http://jamesrskemp.net/", vbOKOnly, About
End Sub
Private Sub Command1_Click()
If Command1.Caption = "Empty" Then
Command1.Caption = "X"
ElseIf Command1.Caption = "X" Then
Command1.Caption = "O"
Else: Command1.Caption = "Empty"
End If
End Sub
Private Sub Command10_Click()
Command1.Caption = "Empty"
Command2.Caption = "Empty"
Command3.Caption = "Empty"
Command4.Caption = "Empty"
Command5.Caption = "Empty"
Command6.Caption = "Empty"
Command7.Caption = "Empty"
Command8.Caption = "Empty"
Command9.Caption = "Empty"
End Sub
Private Sub Command11_Click()
End Sub
Private Sub Command2_Click()
If Command2.Caption = "Empty" Then
Command2.Caption = "X"
ElseIf Command2.Caption = "X" Then
Command2.Caption = "O"
Else: Command2.Caption = "Empty"
End If
End Sub
Private Sub Command3_Click()
If Command3.Caption = "Empty" Then
Command3.Caption = "X"
ElseIf Command3.Caption = "X" Then
Command3.Caption = "O"
Else: Command3.Caption = "Empty"
End If
End Sub
Private Sub Command4_Click()
If Command4.Caption = "Empty" Then
Command4.Caption = "X"
ElseIf Command4.Caption = "X" Then
Command4.Caption = "O"
Else: Command4.Caption = "Empty"
End If
End Sub
Private Sub Command5_Click()
If Command5.Caption = "Empty" Then
Command5.Caption = "X"
ElseIf Command5.Caption = "X" Then
Command5.Caption = "O"
Else: Command5.Caption = "Empty"
End If
End Sub
Private Sub Command6_Click()
If Command6.Caption = "Empty" Then
Command6.Caption = "X"
ElseIf Command6.Caption = "X" Then
Command6.Caption = "O"
Else: Command6.Caption = "Empty"
End If
End Sub
Private Sub Command7_Click()
If Command7.Caption = "Empty" Then
Command7.Caption = "X"
ElseIf Command7.Caption = "X" Then
Command7.Caption = "O"
Else: Command7.Caption = "Empty"
End If
End Sub
Private Sub Command8_Click()
If Command8.Caption = "Empty" Then
Command8.Caption = "X"
ElseIf Command8.Caption = "X" Then
Command8.Caption = "O"
Else: Command8.Caption = "Empty"
End If
End Sub
Private Sub Command9_Click()
If Command9.Caption = "Empty" Then
Command9.Caption = "X"
ElseIf Command9.Caption = "X" Then
Command9.Caption = "O"
Else: Command9.Caption = "Empty"
End If
End Sub
Honestly, I like the one I did in Pascal much better, since the computer is fairly good.