Smooth scrolling marquee text (without API)

Option Explicit
Private TheX as Long
Private TheY as Long

' I have included commented lines to scroll in any of the four main directions.
' You can uncomment the appropriate lines for your needs.
' If you uncomment both the left to right and bottom to top, for example,
' you get diagonal scrolling.
' I found that a timer interval of 50 milliseconds works well in most cases.
' Windows 95/98 machines don't get any faster from that point but NT machines do.
' Playing with the Timer's interval property as well as adjusting the number of
' pixels to step by will eventually satisfy your needs.

Private Sub Form_Load()
  lblText.Caption = "Insert your credits here..." ' Set the text to be shown
  
  ' Use this line of code if you want to scroll right to left
  TheX = pbScrollBox.ScaleWidth ' Set the starting point (off the right edge)
  ' Use this line of code if you want to scroll left to right
'  TheX = 0 - lblText.Width ' Set the starting point (off the left edge)
  ' Use this line of code if you want to scroll bottom to top
'  TheY = pbScrollBox.ScaleHeight ' Set the starting point (off the bottom edge)
  ' Use this line of code if you want to scroll top to bottom
'  TheY = 0 - lblText.Height ' Set the starting point (off the top edge)
End Sub

Private Sub tmrScroll_Timer()
  
  pbScrollBox.Cls ' so we don't get text trails
  
  ' Scroll from right to left
  If TheX <= 0 - lblText.Width Then
    TheX = pbScrollBox.ScaleWidth
  Else
    TheX = TheX - 1 ' larger number means faster scrolling
  End If
  ' uncomment the following lines to scroll from left to right
'  If TheX >= pbScrollBox.ScaleWidth Then
'    TheX = 0 - lblText.Width
'  Else
'    TheX = TheX + 1
'  End If
  ' uncomment the following lines to scroll from bottom to top
'  If TheY <= 0 - lblText.Height Then
'    TheY = pbScrollBox.ScaleHeight
'  Else
'    TheY = TheY - 1
'  End If
  ' uncomment the following lines to scroll from top to bottom
'  If TheY >= pbScrollBox.ScaleHeight Then
'    TheY = 0 - lblText.Height
'  Else
'    TheY = TheY + 1
'  End If
  ' set the text position and print the text
  pbScrollBox.CurrentX = TheX
  pbScrollBox.CurrentY = TheY
  pbScrollBox.Print lblText.Caption
  
End Sub