updating powerpoint

[edwin13387]

Hello all,

I've run in to a problem with i presentation.


The Set-up:

Excel file one: A data workbook, feeding the powerpoint.

Powerpoint one: A powerpoint, running in kiosk mode. An application, which updates all links in the powerpoint when the 1st slide is opened again, is running in it.

Excel two: A part of the data in excel one is generated by an excel workbook, this uses a macro to send an update every set time(5 min. now)


The issue:

Excel two checks before opening if excel one is read only, if so it does nothing. But powerpoint doesnt, so if it tries to update while excel two is updating it get's stuck.
A solution suggested by another (powerpoint) site, was to make Excel one shared. This made sense, but somehow Excel 2 still locked the file. How can this be

Set wbdata = Workbooks("data grafiek.xlsx")
If wbdata Is Nothing Then Set wbdata = Workbooks.Open("I:\OEE\testbestand\presentatie\data grafiek.xlsx")
If Workbooks("data grafiek.xlsx").ReadOnly = False Then
For Each Sh In wbdata.Sheets
    If Sh.Name = "Lab samples" Then
    With Sh.Range("B6:E48")
    .ClearContents
    End With
    End If
    Next Sh
For Each Sh In Wb.Sheets
    If Sh.Name = "Lab samples" Then
        With Sh.Range("B6:E48" & Sh.Cells(Rows.Count, 2).End(xlUp).Row)
            .Copy Workbooks("data grafiek.xlsx").Sheets(Sh.Name).Cells(Rows.Count, 2).End(xlUp).Offset(1)
        End With
    End If
Next Sh
wbdata.Close True
End If
wbdata.Close True

Another option would be having a macro for updating the powerpoint, which also checks first if the file is read only. This gives me a lot of issues, simply i can't get it to work.

Sub update()
Dim xlApp As Object
Dim xlWorkBook As Object
Set xlApp = CreateObject("Excel.Application")
xlApp.Visible = True
If xlApp.workbooks.Open("I:\OEE\testbestand\presentatie\test.xlsx").ReadOnly = True Then
MsgBox ("Read Only")
Else
MsgBox ("niet Read Only")
End If
xlApp.workbooks.Close
xlApp.Visible = False
End Sub

This part goes as expected, but after altering the msgbox to an update command like:
Application.Presentations.UpdateLinks or ActiveAplication.UpdateLinks
it doesn't run.
In the attachments is a test version, the extension of the update links test has to be changed back to pptm.
Can this be fixed?