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Option Explicit

Dim Tips As New Collection ' The in-memory database of tips.
Const TIP_FILE = "TIPOFDAY.TXT" ' Name of tips file
Dim CurrentTip As Long ' Index in collection of tip currently being displayed.

Private Sub DoNextTip()
CurrentTip = Int((Tips.Count * Rnd) + 1) ' Select a tip at random.
' Or, you could cycle through the Tips in order:
' CurrentTip = CurrentTip + 1
' If Tips.Count < CurrentTip Then
' CurrentTip = 1
' End If
frmTip.DisplayCurrentTip ' Show it.
End Sub

Function LoadTips(sFile As String) As Boolean
Dim NextTip As String ' Each tip read in from file.
Dim InFile As Integer ' Descriptor for file.

InFile = FreeFile ' Obtain the next free file descriptor.

' Make sure a file is specified.
If sFile = "" Then
LoadTips = False
Exit Function
End If

' Make sure the file exists before trying to open it.
If Dir(sFile) = "" Then
LoadTips = False
Exit Function
End If

' Read the collection from a text file.
Open sFile For Input As InFile
While Not EOF(InFile)
Line Input #InFile, NextTip
Tips.Add NextTip
Wend
Close InFile

' Display a tip at random.
DoNextTip

LoadTips = True

End Function

Private Sub chkLoadTipsAtStartup_Click()
' save whether or not this form should be displayed at startup
SaveSetting App.EXEName, "Options", "Show Tips at Startup", chkLoadTipsAtStartup.Value
End Sub

Private Sub cmdNextTip_Click()
DoNextTip
End Sub

Private Sub cmdOK_Click()
Unload Me
End Sub

Private Sub Form_Load()
Dim ShowAtStartup As Long

' See if we should be shown at startup
ShowAtStartup = GetSetting(App.EXEName, "Options", "Show Tips at Startup", 1)
If ShowAtStartup = 0 Then
Unload Me
Exit Sub
End If

' Set the checkbox, this will force the value to be written back out to the registry
Me.chkLoadTipsAtStartup.Value = vbChecked

' Seed Rnd
Randomize

' Read in the tips file and display a tip at random.
If LoadTips(App.Path & "\" & TIP_FILE) = False Then
lblTipText.Caption = "That the " & TIP_FILE & " file was not found? " & vbCrLf & vbCrLf & _
"Create a text file named " & TIP_FILE & " using NotePad with 1 tip per line. " & _
"Then place it in the same directory as the application. "
End If

End Sub

Public Sub DisplayCurrentTip()
If Tips.Count > 0 Then
lblTipText.Caption = Tips.Item(CurrentTip)
End If
End Sub
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