Screen Updating = val Then 'Gets rid of flashes for changing it to the same .
Screen Updating = Not val End If 'Doesn't matter what happens above, this is based on what Excel would send back Disable Screen Updating = Not .
Disabled Enabled 0.61909653 2.105066913 0.619555829 2.106865363 0.620805767 2.106866315 0.625528325 2.102403315 0.625319976 2.0991179 0.621287448 2.105103142 0.621540236 2.101392665 0.624537531 2.106866716 0.620401789 2.109004449 There is one important thing to know about screen updating which I didn’t see in any previous answer.
Dim scrup As Boolean: scrup = Disable Screen Updating(Not Application.
Screen Updating) 'Disable Screen Updating, for seemless operation Function Disable Screen Updating(val As Boolean) As Boolean With Application If .
I always assumed it was just used so that it didn't scare end users into thinking their PC was about to crash.
When I started reading more into improving the efficiency of your code I understood what it was for but how much of an effect does Turning off screen updating will only make a difference to execution time if the code interacts with Excel in a way that causes changes to the screen content.
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Function Disable Screen Updating(val As Boolean) As Boolean ''''''''''''''''''''''''''''''''''''''''''''''''' ' Disable Screen Updating, for seemless operation If val Then Application.
Screen Updating = False End If ''''''''''''''''''''''''''''''''''''''''''''''''' Disable Screen Updating = val End Function overload? Its called turning off the Screen Updating, to speed up the file, due to row/column hiding and Dynamic calculations being updated. Perhaps the bug something to do with reading the Screen Updating property, followed shortly by write. Also, I'd search your project for any other usage of Application. There may be some other code causing the updating to return to True.
Screen Updating = False 'swap between sheets 1/2 (need both sheets or this will crash) For i = 1 To numb Switches Sheets(1 + (i Mod 2)). Screen Updating = True 'get results for part two results = results & vb Cr Lf & "Screen Updating IS disabled: " & Format(Time - start Time, "hh:mm:ss") & " seconds" 'show results Msg Box results End Sub Firstly I've been using the script written by Richie (UK) Post #7 Here It simply iterates through a loop changing the value of i in one cell.
I have changed it slightly so it loops 10,000 times and I execute it 10 times for sample size.
The grater the amount of screen changes the bigger the impact will be. Other application settings that can make a difference to execution time are Calculation and Event handling. Enable Events = False ' Code here Clean Up: On Error Resume Next Application. Calculation = xl Calculation Automatic Application. Enable Events = True Exit Sub EH: ' Do error handling Go To Clean Up End Sub Sub test Screen Updating() Dim i As Integer Dim numb Switches As Integer Dim results As String 'swap between sheets this number of times numb Switches = 1000 'keep track of time Dim start Time As Double start Time = Time 'swap between sheets 1/2 (need both sheets or this will crash) For i = 1 To numb Switches Sheets(1 + (i Mod 2)).
Use this code template as a starting point (the error handler ensures that these properties are turned back on at the end of the sub, even if it errors) Sub Your Sub() On Error Go To EH Application. Select Next i 'get results results = "Screen Updating not disabled: " & Format(Time - start Time, "hh:mm:ss") & " seconds" start Time = Time 'scenario 2 - screenupdating disabled Application.