Overflow error, but I can't get it to repeat it

mcomp72

Active Member
Joined
Aug 14, 2016
Messages
275
Office Version
  1. 365
  2. 2019
  3. 2016
  4. 2011
Platform
  1. Windows
  2. MacOS
A couple of months ago, I found some code online to create a delay when running VBA code, called SleepSub. I needed to use it because on Excel for Mac, some labels on my UserForms were not updating on the screen, even when I would use the Repaint method. (I think the labels were changing too fast for Excel to properly update them, though I never had that problem on Windows.) I found that if I called SleepSub on a Mac, the labels WOULD be updated on the screen.

On Excel 2011 for Mac, that sub just generated an overflow error. I have run this sub many times before without that error. What's worse is, I can't get it to repeat the error. Here's the full code of the sub:

Code:
Sub SleepSub(vSeconds As Variant)
'this sub will delay the code running for however many seconds are in vSeconds.

Dim t0 As Single, t1 As Single

t0 = Timer

Do
    t1 = Timer
    If t1 < t0 Then t1 = t1 + 86400 'Timer overflows at midnight
    DoEvents    'optional, to avoid excel freeze while sleeping
Loop Until t1 - t0 >= vSeconds
    
End Sub

The sub is inside a standard module. I call the sub from within a UF module, like so:

Code:
Sub UpdateStatusLabel(PercentFinished As Integer)

Me.StatusLabel.Caption = PercentFinished & "% complete"
Me.Repaint
[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=If]#If[/URL]  Mac Then
    SleepSub(0.05)
[URL=https://www.mrexcel.com/forum/usertag.php?do=list&action=hash&hash=End]#End[/URL]  If

End Sub

Anyone have any idea why I would sometimes receive an overflow error in SleepSub?
 

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did you try using double instead of single.
Can't really get my head around the issue completely, just this is the first thing that comes to mind.
 
Upvote 0
I haven't tried that yet, but that's a good idea. I will make that change.

If anyone thinks of any other reason why it might be causing that error, I'm all ears. I wish there was a way to reproduce the error, but so far, it hasn't happened again, even with the variable types being Single.
 
Upvote 0

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