Excel vba turn off screenupdating
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By doing so, a great deal of overhead is done at compile time ("Early Binding") rather than at run time ("Late Binding").When you’re debugging code, program execution sometimes ends somewhere in the middle without your having turned Screen updating back on.This sometimes causes Excel’s application window to become totally unresponsive.Normally, Excel will recalculate a cell or a range of cells when that cell's or range's precedents have changed.This may cause your workbook to recalculate too often, which will slow down performance.Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.
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Raise Number:=vb Object Error ERR_WINDOW_LOCK_FAIL, _ Description:="Unable to set a Power Point window lock" Exit Property Else Lock Window Update (hwnd) End If Else 'Unlock the Window to refresh Lock Window Update (0&) Update Window (hwnd) hwnd = 0 End If End Property Sub Test Sub() ' Lock screen redraw If Screen Updating Off = True Then Screen Updating = False ' --- Loop through charts in Excel and export them to Powerpoint ' Redraw screen again Screen Updating = True End Sub How do I do this? I tried copying all the code above into a class module and then added Set Screen Updating = New Screen Updating in my regular module, to no avail. EDIT: Just use the code as it was originally written: no need to add anything.
The bad news is that it doesn't make any difference to speed in my testing in PPT 2013.
I suspect a major reason for this is not being able to turn off screenupdating for powerpoint. Below is the code-snippet I have borrowed and an example of how I try to call it: Option Explicit ' User Defined Error codes Const ERR_NO_WINDOW_HANDLE As Long = 1000 Const ERR_WINDOW_LOCK_FAIL As Long = 1001 Const ERR_VERSION_NOT_SUPPORTED As Long = 1002 ' API declarations for Find Window() & Lock Window Update() ' Use Find Window API to locate the Power Point handle.
Declare Function Find Window Lib "user32" Alias "Find Window A" (By Val lp Class Name As String, By Val lp Window Name As Long) As Long ' Use Lock Window Update to prevent/enable window refresh Declare Function Lock Window Update Lib "user32" (By Val hwnd Lock As Long) As Long ' Use Update Window to force a refresh of the Power Point window Declare Function Update Window Lib "user32" (By Val hwnd As Long) As Long Property Let Screen Updating(State As Boolean) Static hwnd As Long Dim Version No As String ' Get Version Number If State = False Then Version No = Left(Application. Version, ".") - 1) 'Get handle to the main application window using Class Name Select Case Version No Case "8" ' For PPT97: hwnd = Find Window("PP97Frame Class", 0&) Case "9" ' For PPT2K: hwnd = Find Window("PP9Frame Class", 0&) Case "10" ' For XP: hwnd = Find Window("PP10Frame Class", 0&) Case "11" ' For 2003: hwnd = Find Window("PP11Frame Class", 0&) Case "12" ' For 2007: hwnd = Find Window("PP12Frame Class", 0&) Case "14" ' For 2010: hwnd = Find Window("PPTFrame Class", 0&) Case Else Err.
By John Walkenbach VBA for Excel 2016 is fast, but it’s not always fast enough.