Blocking and non-blocking wait function in Visual Basic

This code snippet demonstrates how to pause the execution for the specified amount of time (in milliseconds).

Function can be either blocking or unblocking (with DoEvents)

#If VBA7 Then
    Declare PtrSafe Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As LongPtr)
#Else
    Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds as Long) 'For 32 Bit Systems
#End If

Sub main()

    Debug.Print Now
    Wait 20000, False
    Debug.Print Now

End Sub

Sub Wait(period As Long, blocked As Boolean)

    If blocked Then
        Sleep period
    Else
        Const STEP As Long = 100
        
        If period > STEP Then
            
            Dim i As Long
            
            For i = 0 To period Step STEP
                Sleep STEP
                DoEvents
            Next
            
        Else
            Sleep period
        End If
        
    End If

End Sub